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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 3650. Отображено 100.
10-05-2012 дата публикации

Laser scanning sensor

Номер: US20120113410A1
Автор: Masashi Iwasawa, Seongho CHO
Принадлежит: Optex Co Ltd

A laser scanning sensor ( 100 ) of an embodiment of the present invention includes a laser range finder ( 110 ), a scanning mechanism ( 120 ), a data acquisition portion ( 130 ), a dirt determination portion ( 140 ), an alert output control portion ( 150 ) and a memory ( 160 ). The laser range finder ( 110 ) is arranged inside a housing ( 101 ) having an opening portion, and the opening portion is covered with a lens cover ( 116 ) that can transmit laser light. In the dirt determination portion ( 140 ), a predetermined threshold to be compared with a received light level is changed based on maximum detection distance information in each measurement direction.

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Номер записи: 1
12-09-2013 дата публикации

Attachment for placement onto an optical sensor and method of operating an optical sensor

Номер: US20130235379A1
Автор: Martin Wüstefeld
Принадлежит: SICK AG

The invention relates to an attachment for placement onto an optical sensor having a housing with an inlet opening for the entry of detection light into the attachment, a test light receiver for receiving light incident at the test light receiver and for a power measurement of the light incident at the test light receiver as test light and having a signal outputting device for outputting an output signal correlated to the test light power. The invention moreover relates to a combination of an optical sensor and such an attachment and to a method for operating an optical sensor which method can be carried out with such an attachment.

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Номер записи: 2
06-01-2022 дата публикации

ULTRASONIC SENSOR

Номер: US20220003856A1
Автор: AOYAMA Tetsuya, HARADA Taketo, KOYAMA Yu, MATSUURA Mitsuyasu, NOMURA Takuya
Принадлежит: Denso Corporation

An ultrasonic sensor (), that transmits probe waves which are ultrasonic waves and acquires detection waves including reflected waves which have been reflected from surrounding objects, includes a transmitter/receiver () that transmits the probe waves and acquires the detection waves, a detection wave processing section () that executes processing for passing a predetermined frequency band which includes the frequency of the probe waves, an amplitude measurement section () which measures the amplitude of the detection waves, and a judgement section () which judges whether there is adherence of foreign matter on the transmitter/receiver, based on a relationship between a time axis and values of the amplitude of the detection waves during a reverberation interval following the termination of transmitting the probe waves. 1. A method of transmitting and receiving from an ultrasonic sensor , the ultrasonic sensor transmitting probe waves , which are ultrasonic waves , and acquiring detection waves that include reflected waves which have been reflected from surrounding objects , the method comprising:transmitting the probe waves and acquiring the detection waves from a single transmitter/receiver;executing filter processing of the detection waves in which frequencies within a predetermined frequency band that includes the frequency of the probe waves are passed;measuring an amplitude of the detection waves; andexecuting a judgement which judges whether there is adherence of foreign matter on the transmitter/receiver, based on a relationship between a time axis and values of the amplitude of the detection waves during a reverberation interval following a termination of the transmitting of the probe waves.2. The method of transmitting and receiving from the ultrasonic sensor according to claim 1 , further comprising:acquiring, as the relationship between the time axis and the amplitude, an interval extending from the point at which the amplitude falls below a first ...

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Номер записи: 3
07-01-2021 дата публикации

CLEANER-EQUIPPED SENSOR SYSTEM FOR VEHICLE

Номер: US20210001816A1
Автор: KAWAMURA Kazuki, KUBOTA Akinobu
Принадлежит: KOITO MANUFACTURING CO., LTD.

A cleaner-equipped sensor system for a vehicle includes: an external sensor capable of acquiring information on an outside of a vehicle; a cleaner unit including a liquid cleaner capable of discharging a cleaning liquid toward the external sensor, and an air cleaner capable of discharging air toward the external sensor; and an electronic processing device configured to output an output of the external sensor to a vehicle control unit controlling the vehicle, and to control the cleaner unit depending on an output of the vehicle control unit. The external sensor and the electronic processing device are integrated. 1. A cleaner-equipped sensor system for a vehicle , comprising:an external sensor capable of acquiring information on an outside of a vehicle;a cleaner unit including a liquid cleaner capable of discharging a cleaning liquid toward the external sensor, and an air cleaner capable of discharging air toward the external sensor; andan electronic processing device configured to output an output of the external sensor to a vehicle control unit controlling the vehicle, and to control the cleaner unit depending on an output of the vehicle control unit, whereinthe external sensor and the electronic processing device are integrated.2. The cleaner-equipped sensor system according to claim 1 , whereinthe external sensor and the electronic processing device are attached to a common attachment member so as to be integrated.3. The cleaner-equipped sensor system according to claim 1 , whereina wiring connecting the external sensor and the electronic processing device is shorter than a wiring connecting the vehicle control unit and the electronic processing device.4. The cleaner-equipped sensor system according to claim 1 , whereinthe electronic processing device is configured to operate the air cleaner after operating the liquid cleaner.5. The cleaner-equipped sensor system according to claim 1 , whereinthe electronic processing device is configured to operate the cleaner ...

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Номер записи: 4
03-01-2019 дата публикации

Advanced warning and risk evasion system and method

Номер: US20190001885A1
Автор: Chad Green, Chris Schwedtmann, Edwin Hathaway, Kent Baumann, Lee Cole, Mark Green, Nathan Creech
Принадлежит: CRH Americas Materials Inc

This invention relates in general to the field of safety devices, and more particularly, but not by way of limitation, to systems and methods for providing advanced warning and risk evasion when hazardous conditions exist. In one embodiment, a vicinity monitoring unit is provided for monitoring, for example, oncoming traffic near a construction zone. In some embodiments, the vicinity monitoring unit may be mounted onto a construction vehicle to monitor nearby traffic and send a warning signal if hazardous conditions exist. In some embodiments, personnel tracking units may be worn by construction workers and the personnel tracking units may be in communication with the vicinity monitoring unit. In some embodiments, a base station is provided for monitoring activities taking place in or near a construction site including monitoring the locations of various personnel and vehicles within the construction site.

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Номер записи: 5
05-01-2017 дата публикации

Vehicle Radar System for Detecting the Surroundings

Номер: US20170003377A1
Автор: MENGE Michael
Принадлежит:

The invention relates to a vehicle radar system () for detecting the surroundings, which radar system has a circuit board (), with a substrate layer () comprising an upper face () and a lower face (), with a strip conductor () which is applied onto said upper face () and surrounds a shielding region (), along which a shielding housing () that covers said shielding region () is connected to this strip conductor () in an electrically conductive manner, and with at least one wave guide () arranged in said substrate layer (), which wave guide () has a laterally delimiting wave guide wall () as well as an upper and a lower wave guide surface (), wherein said upper wave guide surface () is a section of said strip conductor (). 1241414142214206202228142828282822abaca,ba. A vehicle radar system () for detecting the surroundings , which radar system has a circuit board () , with a substrate layer () comprising an upper face () and a lower face () , with a strip conductor () which is applied onto said upper face () and surrounds a shielding region () , along which a shielding housing () that covers said shielding region () is connected to this strip conductor () in an electrically conductive manner , and with at least one wave guide () arranged in said substrate layer () , which wave guide has a laterally delimiting wave guide wall () as well as an upper and a lower wave guide surface () , wherein said upper wave guide surface () is a section of said strip conductor ().2228. The radar system () according to claim 1 , characterized in that said wave guide () has a length (L) and a width (B) claim 1 , and said length (L) is greater than said width (B).322840c. The radar system () according to characterized in that said wave guide wall () is formed from a conductive material ().4240282826ab. The radar system () according to claim 3 , characterized in that said conductive material () connects said upper wave guide surface () and said lower wave guide surface () in an electrically ...

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Номер записи: 6
02-01-2020 дата публикации

RADAR APPARATUS AND SIGNAL PROCESSING METHOD

Номер: US20200003888A1
Автор: FUJITSU Seiya
Принадлежит: DENSO TEN Limited

A radar apparatus includes: a derivation portion that derives an instantaneous value of a target; a tracking portion that tracks a single target based on a derivation result of the derivation portion; a lost process portion that performs a lost process to stop the single target from being tracked by the tracking portion; and a target classification portion that classifies the single target into a standstill target or a moving target; and, when the single target is the standstill target, the lost process portion suppresses generation of the lost process more greatly than when the single target is the moving target. 1. A radar apparatus comprising:a derivation portion that derives an instantaneous value of a target;a tracking portion that tracks a single target based on a derivation result of the derivation portion;a lost process portion that performs a lost process to stop the single target from being tracked by the tracking portion; anda target classification portion that classifies the single target into a standstill target or a moving target; wherein:when the single target is the standstill target, the lost process portion suppresses generation of the lost process more greatly than when the single target is the moving target.2. The radar apparatus according to claim 1 , wherein:when the single target is the standstill target and a tracking position of the single target falls out of a detection region of the radar apparatus, the lost process portion prohibits generation of the lost process.3. The radar apparatus according to claim 2 , wherein:the radar apparatus is mounted on a mobile object together with other radar apparatus; andeven when the single target is the standstill target and the tracking position of the single target falls out of the detection region of the radar apparatus, the lost process portion exceptionally does not prohibit generation of the lost process if the tracking position of the single target falls into a detection region of the other radar ...

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Номер записи: 7
07-01-2021 дата публикации

SYSTEM AND METHOD FOR CONTROLLING AN AIRFLOW INTO A SENSOR ENCLOSURE

Номер: US20210003669A1
Автор: Diehl Peter G., Jin Cheng
Принадлежит:

Provided herein is a system and method for heat exchange of a vehicle. The system comprises an enclosure disposed on the vehicle and a vent at a base of the enclosure. The enclosure houses one or more sensors. The heat exchange system comprises an adjustable deflector disposed on the vehicle outside the enclosure and configured to direct an airflow into the vent of the enclosure. The heat exchange system further comprises a controller configured to adjust the adjustable deflector. 1. A heat exchange system of a vehicle , comprising:an enclosure disposed on the vehicle and comprising a vent at a base of the enclosure, the enclosure housing one or more sensors;an adjustable deflector disposed on the vehicle outside the enclosure and configured to direct an airflow into the vent of the enclosure; anda controller configured to adjust the adjustable deflector.2. The heat exchange system of claim 1 , wherein:the adjustable deflector is retractable; andthe controller is configured to retract the adjustable deflector.3. The heat exchange system of claim 1 , wherein the controller is configured to adjust a length of the adjustable deflector based on a speed of the vehicle claim 1 , an internal temperature of the enclosure claim 1 , an external temperature claim 1 , or a wind speed.4. The heat exchange system of claim 1 , wherein the controller is configured to pivot the adjustable deflector about a point based on a wind direction and a direction of the vehicle.5. The heat exchange system of claim 1 , wherein the controller is configured to adjust a shape of the adjustable deflector based on a speed of the vehicle claim 1 , an internal temperature of an enclosure claim 1 , an external temperature claim 1 , and a wind speed.6. The heat exchange system of claim 1 , wherein the controller is configured to adjust a length of the adjustable deflector and to pivot the adjustable deflector about a point simultaneously.7. The heat exchange system of claim 1 , further comprising a ...

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Номер записи: 8
07-01-2021 дата публикации

RADAR DEVICE

Номер: US20210003689A1
Автор: KITSUKAWA Yusuke, MITSUMOTO Masashi, Takahashi Toru
Принадлежит: Mitsubishi Electric Corporation

A radar device includes a radar signal outputting unit that repeatedly outputs radar signals whose frequency changes with the passage of time, at a non-uniform repetition period. 1. A radar device comprising:processing circuitryto repeatedly output radar signals whose frequency changes with passage of time, at a non-uniform repetition period;to transmit each radar signal outputted from the radar signal outputting unit to an observation target, and receive each radar signal reflected by the observation target as a reflected wave;to generate a plurality of beat signals each having a frequency, the frequency being a difference between a frequency of each outputted radar signal and a frequency of a corresponding reflected wave; andto calculate a Doppler frequency from the plurality of beat signals, and calculate a relative velocity against the observation target from the Doppler frequency,wherein the processing circuitry is configured to determine a change range of the repetition period on a basis of both an amount of phase variation for a radar signal to be repeatedly outputted at a non-uniform repetition period and a frequency that is a difference between a frequency of the radar signal and a frequency of a radar signal from another radar device, and repeatedly output a radar signal at a repetition period that changes non-uniformly in the determined change range.2. A radar device comprising:processing circuitryto repeatedly output radar signals whose frequency changes with passage of time, at a non-uniform repetition period;to transmit each radar signal outputted from the radar signal outputting unit to an observation target, and receive each radar signal reflected by the observation target as a reflected wave;to generate a plurality of beat signals each having a frequency, the frequency being a difference between a frequency of each outputted radar signal and a frequency of a corresponding reflected wave; andto calculate a Doppler frequency from the plurality of beat ...

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Номер записи: 9
07-01-2021 дата публикации

VELOCITY MEASUREMENT DEVICE, VELOCITY MEASUREMENT PROGRAM, RECORDING MEDIUM, AND VELOCITY MEASUREMENT METHOD

Номер: US20210003692A1
Автор: Nohmi Hitoshi
Принадлежит: ALOUETTE TECHNOLOGY INC.

An object is to enable measurement of position and velocity of a measurement object. 1. A velocity measurement device , comprising:a transmitting means that transmits a transmission signal by a transmitting antenna toward a measurement object;a receiving means that receives a reflected wave from the measurement object with a plurality of receiving antennas and generates a reception signal for each of the receiving antennas; anda signal processing means that obtains a phase plane of the reflected wave with respect to an antenna plane of the plurality of receiving antennas from a phase difference between the reception signals to specify an arrival direction of the reflected wave, obtains a distance to the measurement object from a propagation delay time of the reflected wave, and calculates a phase fluctuation of the reflected wave to calculate a velocity of the measurement object from the phase fluctuation.2. The velocity measurement device according to claim 1 , further comprising a display means that displays an image representing the position and the velocity of the measurement object in accordance with the arrival direction of the reflected wave claim 1 , the distance to the measurement object claim 1 , and the velocity of the measurement object.3. The velocity measurement device according to claim 1 , further comprising a signal generating means that generates a reference signal for synchronizing the transmission signal of the transmitting means claim 1 , the reception signal of the receiving means claim 1 , and a signal process of the signal processing means.4. The velocity measurement device according to claim 1 , whereinthe transmitting means outputs a pulse signal, or a pulse signal chirp-modulated for pulse compression, for detecting the measurement object or a distance to the measurement object, and whereinthe receiving means performs the pulse compression of the reception signal in phase synchronization with a reference signal and separates the ...

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Номер записи: 10
07-01-2021 дата публикации

RADAR APPARATUS

Номер: US20210003695A1
Автор: AKAMINE Yusuke, MIYAKE Yasuyuki
Принадлежит:

A radar apparatus is mountable to a vehicle. The radar apparatus includes an observing unit, an estimating unit, a predicting unit, a matching processing unit, and a determining unit. The estimating unit calculates, regarding an initial detection target object, a plurality of velocity estimation values in which folding is presumed, using a velocity observation value calculated by the observing unit. The predicting unit calculates a prediction value from each of the plurality of velocity estimation values. The matching processing unit performs association of the velocity prediction value and the velocity observation value. 1. A radar apparatus that is mountable to a vehicle , the radar apparatus comprising:a transmitting unit that is configured to transmit a transmission signal that is a pulse signal or a chirp signal at a repetition period that is set;a receiving unit that is configured to receive a reflection signal that is generated as a result of the transmission signal transmitted by the transmitting unit being reflected by a target object;a setting unit that is configured to set, as the repetition period of a next processing cycle, a repetition period that differs from the repetition period of a current processing cycle;a detecting unit that is configured to detect a target object signal that indicates the target object from the reflection signals received by the receiving unit;an observing unit that is configured to calculate a velocity observation value from the target object signal detected by the detecting unit, in which the velocity observation value is an observation value of a relative velocity in relation to the target object;an estimating unit that is configured to calculate, regarding an initial detection target object, a plurality of velocity estimation values in which velocity folding from k times to k+n times (k being an integer, and n being an integer that is 1 or greater) is presumed, using the velocity observation value calculated by the ...

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Номер записи: 11
03-01-2019 дата публикации

RADAR SENSOR

Номер: US20190004146A1
Автор: von Rhein Andreas
Принадлежит:

A radar sensor with a signal generation unit that generates a sequence of output signals for the generation of a radiated radar signal. The radar sensor has a signal receiving unit for the reception and for the processing of reflected radar signals as received signals, which are further processed for the analysis of the received signals. A sequence of voltage signals rising from a starting frequency are generated as output signal. The respective received signals are analyzed by means of Fourier analysis, and the output signals have a modulated starting frequency. 1. A radar sensor comprising:a signal generation unit for generating a sequence of output signals having a modulated starting frequency for the generation of a radiated radar signal;a signal receiving unit for the reception and for the processing of reflected radar signals as received signals,wherein said received signals are further processed for the analysis of the received signals,wherein a sequence of voltage signals rising from a starting frequency are generated as output signal, andwherein the respective received signals are analyzed by means of Fourier analysis.2. The radar sensor according to claim 1 , wherein from the Fourier analysis claim 1 , a speed of an object is determined in a direction of a dimension of the sequence of the voltage signals.3. The radar sensor according to claim 1 , wherein from the Fourier analysis claim 1 , a distance of an object is determined in a direction of a dimension of the sequence of the voltage signals.4. The radar sensor according to claim 1 , wherein the angle of the object is determined by means of a two-dimensional maximum detection and by means of at least one of a phase comparison and a high-resolution-beam-forming of several aerials.5. The radar sensor according to wherein the output signals have an identical starting value and an identical end value and run from F_c−f_band/2 to F_c+f_band/2.6. The radar sensor according to wherein the output signals have a ...

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Номер записи: 12
03-01-2019 дата публикации

Multi-Chip Transceiver Testing in a Radar System

Номер: US20190004148A1
Автор: Breen Daniel Colum, Dandu Krishnanshu, Ginsburg Brian Paul
Принадлежит:

A radar system is provided that includes a first radar transceiver integrated circuit (IC) including transmission signal generation circuitry operable to generate a continuous wave signal and a first transmit channel coupled to the transmission generation circuitry to receive the continuous wave signal and transmit a test signal based on the continuous wave signal, and a second radar transceiver IC including a first receive channel coupled to an output of the first transmit channel of the first radar transceiver IC via a loopback path to receive the test signal from first the transmit channel, the second radar transceiver IC operable to measure phase response in the test signal. 1. A radar system , comprising:a first radar transceiver integrated circuit (IC) including transmission signal generation circuitry operable to generate a continuous wave signal and a first transmit channel coupled to the transmission generation circuitry to receive the continuous wave signal and transmit a test signal based on the continuous wave signal; anda second radar transceiver IC including a first receive channel coupled to an output of the first transmit channel of the first radar transceiver IC via a loopback path to receive the test signal from the first transmit channel, the second radar transceiver IC operable to measure phase response in the test signal.2. The radar system of claim 1 , including:a third radar transceiver IC including a second receive channel coupled to an output of the first transmit channel of the first radar transceiver IC via the loopback path to receive the test signal from the first transmit channel, the third radar transceiver IC operable to measure phase response in the first test signal.3. The radar system of claim 1 , in which phase mismatch between the first transmit channel and a second transmit channel of the second radar transceiver is determined as a difference between the phase response and internal phase response of the second transmit channel.4 ...

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Номер записи: 13
03-01-2019 дата публикации

METHOD AND DEVICE FOR DETECTING AN ICE-COVERED ELECTROACOUSTIC SENSOR

Номер: US20190004163A1
Автор: Schneider Marcus, Schoenherr Michael
Принадлежит:

A method for detecting a diaphragm of an electroacoustic sensor covered with snow/ice (e.g., an ultrasonic sensor on a vehicle). The method includes: a) after a sensor operation start, a temperature sensor, disposed in the interior of a sensor housing, ascertains a temporal temperature characteristic of an interior of the electroacoustic sensor, where the temperature of the sensor interior at the beginning of the sensor operation is below 0° C. In b), a second time range of the ascertained temperature characteristic is detected by a processing unit in that the temperature increase drops significantly in comparison with a temporally preceding first range. In c), if such a time range is detected, then it is inferred therefrom that the diaphragm of the electroacoustic sensor is covered with snow/ice. In d), if it was detected that a diaphragm of the electroacoustic sensor is covered with snow/ice, a warning is output to the driver. 17-. (canceled)8. A method for detecting a diaphragm of an electroacoustic sensor covered with snow and/or ice , on a vehicle , the method comprising:a) ascertaining a temporal temperature characteristic of an interior of the electroacoustic sensor after a start of sensor operation by a temperature sensor, which is situated in the interior of a housing of the sensor, the temperature of the sensor interior being below 0° C. at the start of the sensor operation;b) detecting a second time range of the ascertained temperature characteristic, in which the temperature increase drops significantly in comparison with a temporally preceding first range, with a processing unit, and if such a time range is detected,c) detecting a diaphragm of the electroacoustic sensor that is coated with snow and/or ice; andd) outputting a warning to the driver.9. The method of claim 8 , wherein in task b) claim 8 , the detection of the second time range takes place in that the processing unit compares the gradient of the ascertained temperature characteristic to the ...

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Номер записи: 14
03-01-2019 дата публикации

Millimeter wave holographic three-dimensional imaging detection system and method

Номер: US20190004171A1
Автор: Beibei Liu, Chengyan JIA, Chunchao QI, Guangsheng WU, Juncheng Liu, Qing Ding, Shukai ZHAO, Yandong Zhang, Yanli Liu
Принадлежит: China Communication Technology Co Ltd, Shenzhen CCT THZ Technology Co Ltd

This invention provides millimeter wave holographic 3D imaging detection system, which comprises: a transmitting antenna configured to transmit a millimeter wave transmitting signal to an object to be detected; a receiving antenna configured to receive an echo signal from the object to be detected; a millimeter wave transceiving module configured to generate the millimeter wave transmitting signal transmitted to the object to be detected and receive and process the echo signal from the receiving antenna; a scanning device configured to support the millimeter wave transceiving module, the transmitting antenna and the receiving antenna, and move the millimeter transceiving module, the transmitting antenna and the receiving antenna along a preset track, so as to scan the object to be detected with millimeter waves; a data gathering and processing module configured to gather and process the echo signal output from the millimeter wave transceiving module to generate a 3D image of the object to be detected; and an image display unit configured to display the 3D image generated by the data gathering and processing module. Besides, this invention also provides a method of millimeter wave holographic 3D imaging detection on an object to be detected using the above system thereof. The technical solution of this invention has the advantages of simple structure, high resolution, short imaging time, and larger field of view.

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Номер записи: 15
13-01-2022 дата публикации

Method and analysis system for determining a state of a diaphragm of an ultrasound sensor

Номер: US20220011419A1
Автор: Bastian Hafner, Fabian Haag, Maximilian Poepperl, Raghavendra Gulagundi
Принадлежит: VALEO SCHALTER UND SENSOREN GMBH

A method and an analysis system for determining a state of a diaphragm of an ultrasound sensor during operation is disclosed. The diaphragm of the ultrasound sensor is excited with a first excitation signal in a predefined first frequency profile. Based on this, a first voltage profile, which depends on a frequency of the first excitation signal, is measured. Analogously, a second voltage profile is determined by applying a second excitation signal to the diaphragm and then carrying out a measurement. These two voltage profiles are shifted so that respective positions of maxima of the two voltage profiles are matched to one another in a predefined frequency range. A third voltage profile, which runs between the shifted first and second voltage profiles, is determined. Based on the third voltage profile, electrical parameters are determined by a model for continuous excitation of the diaphragm to determine the state of the diaphragm.

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Номер записи: 16
20-01-2022 дата публикации

SYSTEM AND METHOD FOR DETERMINING WHEN A SENSOR IS POLLUTED

Номер: US20220021868A1
Автор: Hunt Shawn
Принадлежит:

A system includes a processor and a memory in communication with the processor having one or more modules. The modules include instructions that cause the processor to receive first sensor information from a first sensor and second sensor information of a shared field of view. The instructions cause the processor to detect one or more objects within the shared field of view using the first sensor information and the second sensor information. When one or more discrepancies are identified between the one or more objects detected using the first sensor information and the one or more objects detected using the second sensor information are detected, the instructions that cause the processor to determine that the first sensor or the second sensor needs cleaning. 1. A system comprising:a processor;a memory in communication with the processor, the memory including a receiver module, an object detection module, and a pollution detection module; receive first sensor information from a first sensor mounted to a vehicle having a first field of view, and', 'receive second sensor information from a second sensor mounted to the vehicle having a second field of view, wherein at least a portion of the second field of view overlaps at least a portion of the first field of view to define a shared field of view;, 'wherein the receiver module includes instructions that, when executed by the processor, cause the processor to detect one or more objects within the shared field of view using the first sensor information, and', 'detect one or more objects within the shared field of view using the second sensor information; and, 'wherein the object detection module includes instructions that, when executed by the processor, cause the processor to determine one or more discrepancies between the one or more objects detected using the first sensor information and the one or more objects detected using the second sensor information, and', 'determine when one of the first sensor and the second ...

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Номер записи: 17
10-01-2019 дата публикации

Method and a system for detecting a vital sign of a subject

Номер: US20190008459A1
Автор: Ilde Rosa LORATO
Принадлежит: STICHTING IMEC NEDERLAND

A method for detecting a vital sign of a subject (102) comprises: receiving (302) a reflected radio frequency signal from the subject (102), the reflected signal being based on a transmitted signal, which is Doppler-shifted due to mechanical movements corresponding to the heart rate and/or the respiratory rate; dividing (304) a baseband signal into a sequence of sliding windows (200), each sliding window (200) representing a time interval; estimating (306) a vital sign parameter in at least one sliding window (200); determining (308) whether a vital sign parameter may be reliably estimated in at least one sliding window (200); on condition that the vital sign parameter may not be reliably estimated in a sliding window (200), determining (310) a vital sign parameter of the sliding window (200) based on vital sign parameters estimated in a plurality of windows representing time intervals close to the time interval of the window (200).

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Номер записи: 18
11-01-2018 дата публикации

Sensor cleaning devices and systems

Номер: US20180009418A1
Автор: Austin L. Newman
Принадлежит: NIO USA Inc

Sensor cleaning devices, methods, and systems are provided. Output from sensors of a vehicle may be used to describe an environment around the vehicle. In the event that a sensor is obstructed by dirt, debris, or detritus the sensor may not sufficiently describe the environment for autonomous control operations. In response to receiving an indication of an obstructed sensor, the sensor cleaning devices, methods, and systems described herein may proceed to remove the obstruction from the sensor.

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Номер записи: 19
27-01-2022 дата публикации

Bin level monitoring system

Номер: US20220026258A1
Автор: Randall SCHWARTZENTRUBER
Принадлежит: Binsentry Inc

A bin level monitoring system bin level monitoring system comprising an optical sensor for sensing a feed level inside a feed bin, a circuit board communicatively connected to the sensor for receiving a level signal from the sensor and for processing the level signal to generate bin level data, a battery for powering the circuit board and sensor, an enclosure for enclosing the circuit board and a radio transmitter for transmitting the bin level data. The sensor may be a LIDAR sensor or a time-of-flight (ToF) sensor.

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Номер записи: 20
12-01-2017 дата публикации

TEST BENCH FOR TESTING A DISTANCE RADAR INSTRUMENT FOR DETERMINING DISTANCE AND SPEED OF OBSTACLES

Номер: US20170010346A1
Автор: Grascher Carsten, Lohöfener Albrecht, ROLFSMEIER Andre, Rozmann Michael, Schütte Frank
Принадлежит:

A test bench for testing a distance radar instrument for determining distance and speed of obstacles, comprising a radar emulation device comprising at least one radar antenna and a computer unit with a model of the surroundings, wherein the model of the surroundings comprises data (x, v) of at least one obstacle with a relative position and speed from the distance radar instrument, wherein the radar emulation device emits a suitable reflection radar signal on the basis of the relative position and speed predetermined by the model of the surroundings at least partly in the direction of the distance radar instrument after receiving a scanning radar signal from the distance radar instrument such that the distance radar instrument detects an obstacle with a predetermined relative position and speed, wherein the radar emulation device extends over an angular range in front of the distance radar instrument such that the obstacle with relative position and speed can be simulated in this angular range with mutually distinguishable angles. 118-. (canceled)19. A test bench for testing a distance radar instrument by simulating distance and speed of obstacles , comprising:a radar emulation device comprising at least one radar antenna and a computer unit with a model of the surroundings, wherein the model of the surroundings comprises data of at least one obstacle with a relative position and speed from the distance radar instrument,wherein the radar emulation device emits a suitable simulated reflection radar signal on the basis of the relative position and speed predetermined by the model of the surroundings at least partly in the direction of the distance radar instrument in response to a scanning radar signal from the distance radar instrument to enable the distance radar instrument to detect an obstacle with a predetermined relative position and speed,wherein the radar emulation device extends over an angular range in front of the distance radar instrument such that the ...

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Номер записи: 21
12-01-2017 дата публикации

TEST BENCH FOR TESTING A DISTANCE RADAR INSTRUMENT FOR DETERMINING DISTANCE AND SPEED OF OBSTACLES

Номер: US20170010347A1
Автор: Grascher Carsten, Lohöfener Albrecht, Rozmann Michael, Schütte Frank
Принадлежит:

A test bench for testing a distance radar instrument for determining distance and speed of obstacles, comprising a radar emulation device comprising at least one radar antenna and a computer unit with a model of the surroundings, wherein the model of the surroundings comprises data (x, v) of at least one obstacle with a relative position and speed from the distance radar instrument, wherein the radar emulation device emits a suitable reflection radar signal on the basis of the relative position and speed predetermined by the model of the surroundings at least partly in the direction of the distance radar instrument after receiving a scanning radar signal from the distance radar instrument such that the distance radar instrument detects an obstacle with a predetermined relative position and speed, wherein the radar emulation device extends over an angular range in front of the distance radar instrument such that the obstacle with relative position and speed can be simulated in this angular range with mutually distinguishable angles and wherein the radar emulation device comprises a multiplicity of stationary radar antennas which are distributed over the angular range. 110-. (canceled)11. A test bench for testing a distance radar instrument by simulating distance and speed of obstacles , comprisinga radar emulation device comprising at least one radar antenna and a computer unit with a model of the surroundings, wherein the model of the surroundings comprises data of at least one obstacle with a relative position and speed from the distance radar instrument,wherein the radar emulation device emits a suitable simulated reflection radar signal on the basis of the relative position and speed predetermined by the model of the surroundings at least partly in the direction of the distance radar instrument in response to a scanning radar signal from the distance radar instrument to enable the distance radar instrument to detect an obstacle with a predetermined relative ...

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Номер записи: 22
14-01-2016 дата публикации

ON-VEHICLE RADAR APPARATUS CAPABLE OF RECOGNIZING RADAR SENSOR MOUNTING ANGLE

Номер: US20160011299A1
Автор: MIYAKE Yasuyuki, Satou Miki, Suzuki Koichiro, Takano Gaku
Принадлежит:

An on-vehicle radar apparatus includes a radar sensor and a mounting angle calculation section that calculates a mounting angle of the radar sensor, and the radar sensor is mounted on a vehicle so that a sensing area includes a direction of 90 degrees relative to a front-back direction of the vehicle and detects a relative speed to an observation point at which the radar wave is reflected in the sensing area and an azimuth at which the observation point is located. The mounting angle calculation section calculates a mounting angle of the radar sensor from an azimuth of a speed zero observation point, the speed zero observation point being the observation point with a relative speed of zero. 1. An on-vehicle radar apparatus comprising:a radar sensor which is mounted on a vehicle such that a sensing area includes a direction of 90 degrees relative to a front-back direction of the vehicle, transmitting and receiving a radar wave thereby detecting at least a relative speed to an observation point at which the radar wave is reflected in the sensing area and an azimuth at which the observation point is located; anda mounting angle calculation section that calculates a mounting angle of the radar sensor from an azimuth of a speed zero observation point, the speed zero observation point being the observation point with a relative speed of zero among the observation points detected by the radar sensor.2. The on-vehicle radar apparatus according to claim 1 , wherein the radar sensor uses an FMCW wave as the radar wave.3. The on-vehicle radar apparatus according to claim 1 , wherein the mounting angle calculation section applies a robust estimation to calculation of the azimuth of the speed zero observation point.4. The on-vehicle radar apparatus according to claim 3 , wherein the mounting angle calculation section uses a trimmed mean as the robust estimation.5. The on-vehicle radar apparatus according to claim 1 , wherein the mounting angle calculation section uses the ...

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Номер записи: 23
11-01-2018 дата публикации

SENSOR AND ESTIMATING METHOD

Номер: US20180011169A1
Автор: HONMA Naoki, IIZUKA SHOICHI, Nakayama Takeshi, SASAKAWA Dai
Принадлежит:

A sensor includes a transmit antenna, a receive antenna, circuitry, and a memory. The transmit antenna includes N transmit antenna elements each transmitting a transmit signal. The receive antenna includes M receive antenna elements each receiving N receive signals including reflection signals reflected by an organism. The circuitry extracts a second matrix corresponding to a predetermined frequency range from an N×M first matrix representing propagation characteristics between each transmit antenna element and each receive antenna element calculated from the receive signals. The circuitry estimates the position of the organism by using the second matrix, and calculates a radar cross-section value with respect to the organism, based on the estimated position and the positions of the transmit antenna and the receive antenna. The circuitry then estimates the posture of the organism by using the calculated radar cross-section value and information indicating associations between radar cross-section values and postures of the organism. 1. A sensor comprising:a transmit antenna including N transmit antenna elements, each of the N transmit antenna elements transmitting a transmit signal to a predetermined range within which an organism is likely to exist, N being a natural number of two or greater;a receive antenna including M receive antenna elements, each of the M receive antenna elements receiving N receive signals including reflection signals generated as a result of some of the N transmit signals transmitted from the N transmit antenna elements being reflected by the organism, M being a natural number of two or greater;circuitry; anda memory, whereinthe circuitry calculates an N×M first matrix having complex-number transfer function components, each of the complex-number transfer function components representing propagation characteristics between a transmit antenna element and a receive antenna element, from the N receive signals received by each of the M receive ...

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Номер записи: 24
11-01-2018 дата публикации

Methods and Apparatus for Velocity Detection in MIMO Radar Including Velocity Ambiguity Resolution

Номер: US20180011170A1
Автор: Ahmad Adeel, RAO SANDEEP, Subburaj Karthik, WANG DAN
Принадлежит:

In accordance with described examples, a method determines if a velocity of an object detected by a radar is greater than a maximum velocity by receiving on a plurality of receivers at least one frame of chirps transmitted by at least two transmitters and reflected off of the object. A velocity induced phase shift (φ) in a virtual array vector S of signals received by each receiver corresponding to a sequence of chirps (frame) transmitted by each transmitter is estimated. Phases of each element of virtual array vector S are corrected using φto generate a corrected virtual array vector S. A first Fourier transform is performed on the corrected virtual array vector Sto generate a corrected virtual array spectrum to detect a signature that indicates that the object has an absolute velocity greater than a maximum velocity. 1. An integrated circuit comprising:at least two ports coupled to receive a plurality of chirps transmitted by at least two transmitters and reflected off of an object; [{'sub': 'd', 'estimate a velocity induced phase shift (φ) in a virtual array vector S of signals based on signals received by each receiver corresponding to a sequence of chirps (frame) transmitted by the at least two transmitters;'}, {'sub': d', 'c, 'correct the phases of each element of virtual array vector S using φto generate a corrected virtual array vector S;'}, {'sub': 'c', 'perform a first Fourier transform on the corrected virtual array vector Sto generate a corrected virtual array spectrum; and'}, 'analyze the corrected virtual array spectrum to detect a signature that indicates that the object has an absolute velocity greater than a maximum velocity., 'a processor configured to2. The integrated circuit of in which the processor is further configured to correct the corrected virtual array vector Susing a phase error vector corresponding the signature and perform a second Fourier transform on a resulting matrix to determine if the signature is removed from the resulting ...

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Номер записи: 25
11-01-2018 дата публикации

RADAR SYSTEMS AND METHODS THEREOF

Номер: US20180011181A1
Автор: Chakraborty Abhiram, Higuchi Masanobu, URAKAWA Tatsuya
Принадлежит:

A radar system includes a radar transceiver device, which includes a transmitter front end circuit for transmitting a chirp signal towards an object. The radar transceiver device includes a receiver front end circuit for receiving the reflected chirp signal from the object. The radar transceiver device includes a voltage controlled oscillator (VCO) to generate a transmitted chirp signal. The radar transceiver device includes a mixer configured to generate four intermediate frequency output signals having different phases. The radar system includes a controller device, which includes a processor, and a memory for storing the intermediate frequency output signals and instructions for executing in the processor. The instructions cause the processor to generate a complex Fast Fourier Transform (FFT) result by performing a FFT of the intermediate frequency output signals while using zero-padding. The instructions cause the processor to determine, using interpolation, a maximum amplitude in the FFT result and identifying the frequency corresponding to the maximum amplitude. The instructions cause the processor to calculate a distance to the object using the determined frequency. 1. A radar system comprising: a transmitter front end circuit for transmitting a chirp signal towards an object,', 'a receiver front end circuit for receiving the reflected chirp signal from the object,', 'a Voltage Controlled Oscillator (VCO) to generate a transmitted chirp signal, and', 'a mixer configured to generate four intermediate frequency output signals having different phases; and, 'a radar transceiver device comprising a processor, and', generate a complex Fast Fourier Transform (FFT) result by performing a FFT of the intermediate frequency output signals while using zero-padding,', 'using interpolation, determine a maximum amplitude in the FFT result and identifying the frequency corresponding to the maximum amplitude, and', 'calculate a distance to the object using the determined ...

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Номер записи: 26
14-01-2021 дата публикации

FREQUENCY COMPENSATION FOR CLUTTER FILTER BIAS TO RADAR DATA

Номер: US20210011117A1
Автор: HUBBERT John Clark
Принадлежит: University Corporation for Atmospheric Research

A method and system for removing ground clutter data from time series radar data are provided. The method comprises receiving the time series radar data, applying a clutter filter to the time series radar data to generate a filtered time series radar data, applying a discrete Fourier transform to the filtered time series radar data to generate a filtered frequency domain data, determining a filter bias for one or more filter biased frequency domain frequencies of the filtered frequency domain data based on a frequency response of the clutter filter, and correcting the filtered frequency domain data by adding the filter bias to the filtered frequency domain data at the one or more filter biased frequency domain frequencies to generate a filtered and bias corrected frequency domain data. 1. A method for removing ground clutter data from time series radar data , the method comprising:receiving the time series radar data;applying a clutter filter to the tune series radar data to generate a filtered time series radar data;applying a discrete Fourier transform to the filtered time series radar data to generate a filtered frequency domain data;determining a filter bias for one or more filter biased frequency domain frequencies of the filtered frequency domain data based on a frequency response of the clutter filter; andcorrecting the filtered frequency domain data by adding the filter bias to the filtered frequency domain data at the one or more filter biased frequency domain frequencies to generate a filtered and bias corrected frequency domain data.2. The method as claimed in claim 1 , further comprising:receiving a passband comprising a frequency range, andwherein correcting the filtered frequency domain data by adding the filter bias to the filtered frequency domain data at the one or more filter biased frequency domain frequencies to generate the filtered and bias corrected frequency domain data further comprises determining that the one or more filter biased ...

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Номер записи: 27
14-01-2021 дата публикации

Methods and apparatus to realize scalable antenna arrays with large aperture

Номер: US20210011121A1
Автор: Babak MAMANDIPOOR, Mohammad Amin Arbabian
Принадлежит: Leland Stanford Junior University

Methods and apparatus, including computer program products, are provided for synchronization. In some example embodiments, there may be provided a method. The method may receiving, at a processor, cross module information, the cross module information including target profile information obtained from radar returns received at first radar module and transmitted by a second radar module; and determining, at the processor, a frequency correction, a time correction, and/or a phase correction, the determining based at least on the received cross module information. Related systems, methods, and articles of manufacture are also described.

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Номер записи: 28
14-01-2021 дата публикации

Object position and movement estimation using radar

Номер: US20210011146A1
Автор: Amnon Jonas, Oded Bialer
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A system for estimating a range and a velocity of an object includes a processing device configured to perform, for each return pulse of a return signal including reflections of a radar signal, applying a first Fourier transform to the return pulse to transform the return pulse into a range spectrum and calculate a range intensity value for each of a plurality of range hypotheses, calculating a range variation for each of a plurality of hypothesized Doppler frequency values, and for each hypothesized Doppler frequency value, applying a second Fourier transform to the series of return pulses based on the range intensity values and the range variation. The processing device is further configured to perform outputting range and Doppler frequency data including a range-Doppler intensity value for each range hypothesis and hypothesized Doppler frequency, and estimating a range and a velocity of the object based on the range-Doppler intensity values.

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Номер записи: 29
14-01-2021 дата публикации

Sensor having a wireless heating system

Номер: US20210011283A1
Автор: LaRon Michelle Brown, Prashant Dubey, Segundo Baldovino, Venkatesh Krishnan
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A sensor is disclosed. The sensor may comprise: a housing, comprising a transmitting coil; and an optic assembly, comprising a body supporting at least one receiving coil and a conductive film that is in electrical contact with the at least one receiving coil, wherein, when the transmitting coil is energized, the at least one receiving coil is wirelessly energized causing a temperature of the film to increase.

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Номер записи: 30
09-01-2020 дата публикации

CALIBRATING A RADAR ANTENNA

Номер: US20200011970A1
Автор: Abari Farzad Cyrus Foroughi, Clément Romain, Shah Mayur Nitinbhai
Принадлежит:

In one embodiment, a method includes causing a radar antenna to transmit a plurality of radar signals at a plurality of sweep angles and, for each of one or more the radar signals reflected back to the radar antenna, calculating a radial-velocity component. The method also includes identifying one of the radial-velocity components, identifying one of the plurality of sweep angles corresponding to the identified radial-velocity components, and calculating an offset of an electrical boresight of the radar antenna based at least in part on the identified sweep angle corresponding to the identified radial-velocity component. 1. A method comprising , by a computing device:causing a radar antenna to transmit a plurality of radar signals at a plurality of sweep angles;for each of one or more the radar signals reflected back to the radar antenna, calculating a radial-velocity component;identifying one of the radial-velocity components;identifying one of the plurality of sweep angles corresponding to the identified radial-velocity components;calculating an offset of an electrical boresight of the radar antenna based at least in part on the identified sweep angle corresponding to the identified radial-velocity component; andcausing the radar antenna to be calibrated based on the offset.2. The method of claim 1 , wherein causing the radar antenna to be calibrated comprises causing the offset to be accounted for in future measurements by the radar antenna.3. The method of claim 1 , wherein causing the radar antenna to be calibrated comprises causing an orientation of the radar antenna to be changed based at least in part on the offset.4. The method of claim 1 , wherein:the radar antenna transmits the plurality of radar signals in one or more horizontal sweeps; andthe calculated offset of the electrical boresight of the radar antenna is horizontal.5. The method of claim 1 , wherein:the radar antenna transmits the plurality of radar signals in one or more vertical sweeps; andthe ...

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Номер записи: 31
09-01-2020 дата публикации

VEHICULAR RADAR DEVICE

Номер: US20200011990A1
Автор: CHEN Hsi-Hsun, LIN Yu-Shun, YANG Shui-Peng, YU SAN-CHUAN
Принадлежит:

A vehicular radar device includes a radar module and a dustproofing element. The radar module has a casing and a radar sensor disposed in the casing. The casing has a first outer wall surface and a second outer wall surface opposing the first outer wall surface. The first outer wall surface faces an inner wall surface of a bumper. An emission surface of the radar sensor faces the first outer wall surface of the casing. The dustproofing element has two opposing dustproofing surfaces. The two dustproofing surfaces attach to the first outer wall surface of the casing of the radar module and the inner wall surface of the bumper, respectively. Therefore, the vehicular radar device effectively precludes influences of ambient dust on performance of the radar sensor, so as to enhance sensing sensitivity of the radar sensor and extend its service life. 1. A vehicular radar device for use with a bumper , comprising:a radar module having a casing and a radar sensor, the casing having a first outer wall surface and a second outer wall surface opposing the first outer wall surface, wherein the first outer wall surface of the casing faces an inner wall surface of the bumper, with the radar sensor disposed in the casing and having an emission surface, the emission surface facing the first outer wall surface of the casing; anda dustproofing element having a first dustproofing surface and a second dustproofing surface, the first dustproofing surface attaching to the first outer wall surface of the casing of the radar module, and the second dustproofing surface attaching to the inner wall surface of the bumper.2. The vehicular radar device of claim 1 , wherein the dustproofing element is a solid claim 1 , and the first dustproofing surface of the dustproofing element covers the first outer wall surface of the casing.3. The vehicular radar device of claim 1 , wherein the dustproofing element has a hollowed-out chamber penetrating the first and second dustproofing surfaces and ...

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Номер записи: 32
09-01-2020 дата публикации

GROUND EFFECT BASED SURFACE SENSING UTILIZED WITH OTHER SENSING TECHNOLOGIES IN AUTOMATED AERIAL VEHICLES

Номер: US20200013298A1
Автор: Beckman Brian C., Buchmueller Daniel, Green Scott A., Hensel Fabian, Kimchi Gur, Navot Amir, Porter Brandon William, RAULT SEVERAN SYLVAIN JEAN-MICHEL
Принадлежит:

A system and method for operating an automated aerial vehicle are provided wherein influences of ground effects (e.g., which may increase the effective thrusts of propellers by interfering with the respective airflows) are utilized for sensing the ground or other surfaces. In various implementations, operating parameters of the automated aerial vehicle are monitored to determine when ground effects are influencing the parameters associated with the propellers, which correspondingly indicate proximities to a surface (e.g., the ground). Such ground effect sensing techniques may be utilized as a backup to other sensors (e.g., which may be determined to not be functioning properly and/or may be otherwise inhibited due factors such as to rain, snow, fog, reflections, bright sunlight, etc.) 1. An automated aerial vehicle , comprising:a plurality of propellers that are utilized to fly the automated aerial vehicle, the plurality of propellers comprising a first propeller that is rotated by a first propeller motor;a power supply connected to the first propeller motor that provides power to the first propeller motor;a sensor system that provides an output that indicates a distance to a surface; and one or more processors; and', control the first propeller motor to rotate the first propeller;', 'monitor a level of a first parameter, wherein the first parameter is associated with the first propeller and a level of the first parameter is influenced by a first ground effect, the first ground effect corresponding to a condition in which an airflow of the first propeller is directed against a surface which increases an effective thrust of the first propeller and which influences a level of the first parameter;', 'determine a first distance of the automated aerial vehicle to the surface based on the level of the first parameter as influenced by the first ground effect;', 'receive an output from the sensor system that indicates a second distance of the automated aerial vehicle to the ...

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Номер записи: 33
12-01-2017 дата публикации

Automotive radar system and automotive radar sensor module with breather structure

Номер: US20170013741A1
Автор: Jeff Schaefer, Richard Leung, Xueru Ding
Принадлежит: Autoliv ASP Inc

A housing for a radar sensor module has a back surface and a plurality of side surfaces connected to the back surface. A vent structure is connected to the back surface and at least one of the side surfaces. The vent structure includes an enclosure enclosing a chamber. A first opening in the vent structure penetrates the at least one of the side surfaces of the housing, such that the chamber is exposed to an exterior of the housing. A second opening in the vent structure penetrates the enclosure such that the chamber is exposed to an interior of the housing.

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Номер записи: 34
21-01-2016 дата публикации

Distributed Radar Signal Processing in a Radar System

Номер: US20160018511A1
Автор: ALI Murtaza, Bose Sudipto, Ginsburg Brian Paul, Nayyar Jasbir Singh
Принадлежит:

A cascaded radar system is provided that includes a first radar system-on-a-chip (SOC) operable to perform an initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels of the radar SOC, a second radar SOC operable to perform the initial portion of signal processing for object detection on digital beat signals generated by multiple receive channels in the radar SOC, and a processing unit coupled to the first radar SOC and the second radar SOC to receive results of the initial portion of signal processing from each radar SOC, the processing unit operable to perform a remaining portion of the signal processing for object detection using these results.

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Номер записи: 35
21-01-2016 дата публикации

Method for Generating and Compressing Multi-Sweep-Frequency Radar Signals

Номер: US20160018512A1
Автор: Li Ke, Tan Jian, TIAN Yingwei, WANG Caijun, WEN Biyang
Принадлежит: WUHAN UNIVERSITY

A method for generating and compressing multi-sweep-frequency radar signals is provided, based on the idea of reducing the power density of signals on a time-frequency domain. By using a method of circumferentially shifting and superposing a single sweep-frequency signal, sweep-frequency signals multiplexed simultaneously at time and frequency are generated, and for the generated multi-sweep-frequency signals, the sweep-frequency signals are multiplexed simultaneously at time and frequency in a single pulse time period. The multi-sweep-frequency signals multiplexed at frequency are used to perform matched filtering, and then perform segmented accumulation to obtain distance resolution which is inversely proportional to the bandwidth and the signal-to-noise ratio after the single sweep-frequency signal is compressed under the same energy condition, thereby realizing secondary compression on the multi-sweep-frequency signals. The signals generated by the method have higher spectrum utilization rate and lower interception probability, and guarantee the distance resolution and detection distance of a radar.

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Номер записи: 36
18-01-2018 дата публикации

SENSOR DEVICE

Номер: US20180017666A1
Автор: CHIKAOKA Shigeru, Kato Yasunori, TAKAHASHI Ryuhei, Takahashi Toru
Принадлежит: Mitsubishi Electric Corporation

There are provided correlation process units - (- and -N) for performing a cross-correlation process between replicas of a plurality of mutually orthogonal transmission signals and reception signals of receiving antenna elements - (- and -N) and outputting a plurality of signals after the cross-correlation process, and a weighting unit for weighting the plurality of signals after the cross-correlation process outputted from the correlation process units - to -N in accordance with the arrangement of transmitting antennas - to - and the receiving antenna elements - to -N and an antenna directivity pattern, and a signal combination unit combines the plurality of signals after the cross-correlation process that are weighted by the weighting unit 1. A sensor device comprising:a transmission signal generator to generate a plurality of mutually orthogonal transmission signals;a transmitting antenna unit to emit the transmission signals generated by the transmission signal generator from a plurality of transmitting antennas to space;an array antenna constituted by one or more receiving antenna elements to receive reflected waves of the transmission signals that are reflected by an observation target after being emitted from the plurality of transmitting antennas;a plurality of correlation processors to perform a cross-correlation process between the plurality of transmission signals and reception signals of the receiving antenna elements and outputting a plurality of signals after the cross-correlation process;a weighting unit to weight the plurality of signals after the cross-correlation process outputted from the plurality of correlation processors in accordance with a placement of the transmitting antennas and the receiving antenna elements and an antenna directivity pattern; anda signal combiner to combine the plurality of signals after the cross-correlation process that are weighted by the weighting unit.2. The sensor device according to claim 1 , further comprising:a ...

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Номер записи: 37
17-01-2019 дата публикации

RADIO-WAVE-PENETRABLE LAYER HAVING METALLIC LUSTER

Номер: US20190018104A1
Автор: CHO Byung Kyu, Hong Seung Chan, Shim So Jung
Принадлежит:

Disclosed is a coating layer penetrable by radio wave and having a metallic luster. The coating layer includes a resin layer as an outmost layer to an exterior or front, a metallic texture layer formed on a rear side of the resin layer and comprising a optical film layer including metal oxides having different refractive indexes, and a germanium (Ge) layer to reflect light and a reflection layer formed on the rear side of the metallic texture layer. 114-. (canceled)15. A method of producing a coating layer , comprising:washing and activating a surface of a resin layer using a plasma converted from argon gas;radiating an electron beam using a first refractive material and a second refractive material to form a multilayered optical film layer on the surface of the resin layer,radiating an electron beam using germanium to form a germanium layer.16. The method of claim 15 , wherein the first refractive material comprises TiOand/or CrO.17. The method of claim 15 , wherein the second refractive material comprises SiO.18. The method of claim 15 , wherein the germanium layer is formed on a front side of the multilayered optical film layer claim 15 , on a rear side of the multilayered optical film layer claim 15 , or between the first refractive material and the second refractive material. The present application claims priority to Korean Patent Application No. 10-2015-0175332, filed Dec. 9, 2015 and No. 10-2016-0115705, filed Sep. 8, 2016, the entire content of which is incorporated herein for all purposes by this reference.The present invention relates to a coating layer, or particularly a radio-wave-penetrable coating layer having a metallic luster, such that the coating layer of the present invention may protect SCC radar while radio waves may penetrate the coating layer.A smart cruise control (SCC) system detects movement of a preceding vehicle using a radar mounted on a front portion of a vehicle, thereby controlling engine and brakes to maintain a distance from the ...

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Номер записи: 38
17-01-2019 дата публикации

Methods and Systems for Clearing Sensor Occlusions

Номер: US20190018131A1
Автор: Brandon Douglas Luders, Nathaniel Fairfield, Tim Campbell
Принадлежит: Waymo LLC

A method is provided that involves identifying a target region of an environment of an autonomous vehicle to be monitored for presence of moving objects. The method also involves operating a first sensor to obtain a scan of a portion of the environment that includes at least a portion of the target region and an intermediate region between the autonomous vehicle and the target region. The method also involves determining whether a second sensor has a sufficiently clear view of the target region based on at least the scan obtained by the first sensor. The method also involves operating the second sensor to monitor the target region for presence of moving objects based on at least a determination that the second sensor has a sufficiently clear view of the target region. Also provided is an autonomous vehicle configured to perform the method.

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Номер записи: 39
16-01-2020 дата публикации

Multi-field zone proximity sensor as well as a method for measuring a distance of an object from the multi-field zone proximity sensor

Номер: US20200018820A1
Автор: EBERSPAECHER Mark, Szabó Attila
Принадлежит:

A multi-field zone proximity sensor () for measuring a distance (l) of an object () from the multi-field zone proximity sensor () is described, wherein the multi-field zone proximity sensor () has a housing () in which an antenna structure () is incorporated, which is arranged in or close to a side () of the housing (), wherein the antenna structure () is set up for emitting an electromagnetic transmission free space wave () and for receiving an electromagnetic reflection wave () reflected on the object (), wherein the multi-field zone proximity sensor () has sensor electronics () which are set up to determine the distance (l) of the object () from the multi-field zone proximity sensor () based on the received reflection wave (). 11022101012141912142024221016221024. Multi-field zone proximity sensor () for measuring a distance (l) of an object () from the multi-field zone proximity sensor () , wherein the multi-field zone proximity sensor () has a housing () in which an antenna structure () is incorporated which is arranged in or near a side () of the housing () , wherein the antenna structure () is set up for emitting an electromagnetic transmission free space wave () and for receiving an electromagnetic reflection wave () reflected on the object () , wherein the multi-field zone proximity sensor () has sensor electronics () which are set up to determine the distance (l) of the object () from the multi-field zone proximity sensor () based on the received reflection wave ().21019181418. Multi-field zone proximity sensor () according to claim 1 , wherein the side () has an opening () and wherein the antenna structure () is arranged in or near the opening ().31019. Multi-field zone proximity sensor () according to claim 1 , wherein at least the side () is formed of a material which is transparent for electromagnetic waves.4101214401212. Multi-field zone proximity sensor () according to claim 1 , wherein the housing () is formed cylindrically and the antenna structure ...

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Номер записи: 40
16-01-2020 дата публикации

METHOD AND SYSTEM FOR PERFORMING A VEHICLE HEIGHT-RADAR ALIGNMENT CHECK TO ALIGN A RADAR DEVICE PROVIDED IN A VEHICLE

Номер: US20200018822A1
Автор: Aleem Muhammad Azhar, Fath Brian, Miller Matthew, Taylor Alexandra
Принадлежит: Ford Motor Company

The present disclosure is directed toward a method and system for checking a vehicle height and radar aim of a vehicle. The method includes estimating, by a forward imaging system disposed in a vehicle, a vehicle height, and determining whether the estimated vehicle height is within a predefined height tolerance. The method further includes performing, by a radar system disposed in the vehicle, a radar alignment test to determine whether a radar device of the radar system is aligned within a predefined angular range, and adjusting the alignment of the radar device in response to the vehicle height being within the predefined height tolerance and the radar device being misaligned. 1. A method comprising:estimating, by a forward imaging system disposed in a vehicle, a vehicle height of the vehicle;determining whether the estimated vehicle height is within a predefined height tolerance;performing, by a radar system disposed in the vehicle, a radar alignment test to determine whether a radar device of the radar system is aligned within a predefined angular range; andadjusting the alignment of the radar device in response to the vehicle height being within the predefined height tolerance and the radar device being misaligned.2. The method of further comprising performing a height correction procedure in response to the estimated vehicle height being outside of the predefined height tolerance.3. The method of claim 2 , wherein the height correction procedure is performed prior to the radar system performing the radar alignment test.4. The method of further comprising:requesting, by an alignment controller, the vehicle height from the imaging system and a result of the radar alignment test from the radar system, wherein:the alignment controller is external of the vehicle and communicably coupled to the imaging system and the radar system, andthe alignment controller determines whether the radar device is to be adjusted based on the vehicle height and the result of the ...

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Номер записи: 41
21-01-2021 дата публикации

RADAR TARGET EMULATOR, TEST BENCH AND METHOD FOR SIGNAL PROCESSING

Номер: US20210018591A1
Автор: GADRINGER Michael Ernst, GRUBER Andreas, SCHREIBER Helmut, VORDERDERFLER Michael
Принадлежит:

The present invention relates to a radar target emulator, a test bench having such a radar target emulator, and a method for digitally processing at least one analog radar signal. The radar target emulator comprises a first conversion apparatus configured to convert the at least one analog radar signal into at least one corresponding digital radar data packet. A data processing apparatus of the radar target emulator comprises a time delay device and a modification device, wherein the time delay device is configured to provide a plurality of delayed radar data packets on the basis of the at least one digital radar data packet. The modification device is configured to provide a plurality of modified radar data packets on the basis of the plurality of delayed radar data packets, and a second conversion apparatus is configured to provide analog processed radar signals by converting the digital radar data packets processed by the data processing apparatus. A transmission apparatus comprises at least two transmitter devices which are in particular configured to transmit the analog processed radar signals provided by the second conversion apparatus. 1. A radar target emulator , comprising:a first conversion apparatus configured to convert at least one analog radar signal into at least one digital radar data packet;a data processing apparatus comprising a time delay device and a modification device, wherein the time delay device is configured to provide a plurality of delayed radar data packets based on the at least one digital radar data packet, and the modification device is configured to provide a plurality of modified radar data packets based on the plurality of delayed radar data packets;a second conversion apparatus configured to provide processed analog radar signals by converting the at least one digital radar data packet processed by the data processing apparatus; anda transmission apparatus comprising at least two transmitter devices configured to transmit the ...

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Номер записи: 42
21-01-2021 дата публикации

Multi-Spectral THz Micro-Doppler Radar Based on Silicon-Based Picosecond Pulse Radiators

Номер: US20210018610A1
Автор: Assefzadeh Mahdi, Babakhani Aydin, Hosseini Mostafa, Razavian Seyedmohammadreza
Принадлежит: The Regents of the University of California

Systems and methods for modulation and demodulation using a micro-Doppler effect are described. In an embodiment, the method includes radiating, using a picosecond pulse generator with an antenna, a train of THz pulses that form a frequency comb, where the frequency comb is reflected from an object such that the frequency several tones in the frequency comb are shifted based on the speed of the object and demodulating the reflected frequency comb to recover a THz Doppler signature of the object. 1. A method for modulation and demodulation using a micro-Doppler effect , the method comprising:radiating, using a picosecond pulse generator with an antenna, a train of THz pulses that form a frequency comb comprising a plurality of tones, wherein the frequency comb is reflected from an object such that a frequency of the plurality of tones in the frequency comb are shifted based on the speed of the object;demodulating the reflected frequency comb to recover a THz Doppler signature of the object.2. The method of claim 1 , wherein the antenna is on-chip and the train of THz pulses are generated on-chip and radiated by the on-chip antenna.3. The method of claim 1 , wherein the reflected frequency comb from the object is downconverted with another frequency comb and demodulated.4. The method of claim 1 , wherein the reflected frequency comb from the object is demodulated with a single tone.5. The method of claim 1 , further comprising identifying the object using a combination of the THz Doppler signature in a broad THz frequency range and the non-Doppler reflection from the object.6. The method of claim 1 , wherein different parts of the object move at different speeds and the reflected frequency comb comprises a plurality of THz Doppler tones.7. The method of claim 1 , wherein the object vibrates at a frequency equal or close to its mechanical resonance frequencies and the reflected frequency comb comprises a plurality of THz Doppler tones such that the THz Doppler tones ...

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Номер записи: 43
21-01-2021 дата публикации

RADAR SENSOR HEAD FOR A RADAR SYSTEM

Номер: US20210018616A1
Автор: MAYER Marcel, SCHOOR Michael
Принадлежит:

A radar sensor head for a radar system, including: at least one transmitting antenna for generating, and at least one receiving antenna for receiving, radar waves; an interface for connecting the radar sensor head to a data lead; and an identification unit for identifying the radar sensor head, a downloading of calibration data of the sensor head to a central control apparatus being initiatable by way of the identification unit. 113-. (canceled)14. A radar sensor head for a radar system , comprising:at least one transmitting antenna for generating radar waves, and at least one receiving antenna for receiving radar waves;an interface configured to connect the radar sensor head to a data lead; andan identification unit configured to identify the radar sensor head, the identification unit configured to initiate a downloading of calibration data of the sensor head to a central control apparatus.15. The radar sensor head as recited in claim 14 , further comprising:a preprocessing unit configured for defined preprocessing of received data.16. The radar sensor head as recited in claim 14 , wherein the calibration data are updatable using the identification unit.17. The radar sensor head as recited in claim 14 , wherein the downloading of the calibration data is executable in wireless or wire-based fashion.18. The radar sensor head as recited in claim 14 , wherein in conjunction with the downloading of the calibration data claim 14 , an enabling of the radar sensor head is executable.19. The radar sensor head as recited in claim 14 , wherein a sensor ID is transferrable using the identification unit.20. The radar sensor head as recited in claim 19 , wherein the sensor ID is transferrable in encrypted or signed fashion using the identification unit.21. The radar sensor head as recited in claim 19 , wherein a public key of an encryption method is transferrable as the sensor ID.22. The radar sensor head as recited in claim 14 , wherein the calibration data are at least one of ...

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Номер записи: 44
25-01-2018 дата публикации

Acoustic Projector with Source Level Monitoring and Control

Номер: US20180020656A1
Автор: Boericke, Fladung Danny J., II Frederic S., Rolt Kenneth D.
Принадлежит:

In an embodiment, an acoustic projector includes an acoustic transmit transducer capable of producing a sound pressure radiation in response to a driver signal received from a transmit source, an acoustic receive transducer capable of producing a source level signal in response to receiving at least a portion of the sound pressure radiation, and a controller configured to monitor the source level signal and report the source level signal monitored. 1. An acoustic projector comprising:a marine acoustic transmit transducer capable of producing a sound pressure radiation in response to a driver signal received from a transmit source;a voltage monitoring circuit configured to measure a voltage level of the driver signal;a current monitoring circuit configured to measure a current level of the driver signal; anda controller configured to monitor the measured voltage level and the measured current level to derive an indication of impedance of the acoustic transmit transducer based on the monitored voltage level and the monitored current level.2. The acoustic projector of claim 1 , wherein the controller is further configured to report the monitored voltage level.3. The acoustic projector of wherein the controller is further configured to report the monitored voltage level to a remote controller configured to control the drive signal based further on the monitored voltage level.4. The acoustic projector of claim 1 , wherein the controller is further configured to report the monitored current level.5. The acoustic projector of wherein the controller is configured to report the monitored current level to a remote controller configured to control the drive signal based further on the monitored current level.6. The acoustic projector of wherein the controller is configured to control the drive signal based further on the impedance indication.7. The acoustic projector of wherein the controller is configured to determine whether a defect is present based on the impedance ...

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Номер записи: 45
10-02-2022 дата публикации

SENSOR APPARATUS WITH CLEANING

Номер: US20220041138A1
Автор: Hamilton Tyler D., JR. Michael, Krishnan Venkatesh, Phinisee Rashaun, Robertson, Singh Kunal, Surineedi Raghuraman
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A sensor apparatus includes a housing attachable to a vehicle and including a panel, a sensor window, a liquid nozzle fixed relative to the housing, and a tunnel. The panel includes a port. The sensor window is positioned in the port. The liquid nozzle is aimed at the sensor window. The liquid nozzle is positioned in a first horizontal direction from the port along the panel. The tunnel extends along the panel and is positioned in a second horizontal direction from the port, the second horizontal direction being opposite the first horizontal direction. The tunnel terminates at an opening positioned to receive fluid outputted by the nozzle. 1. A sensor apparatus comprising:a housing attachable to a vehicle and including a panel, the panel including a port;a sensor window positioned in the port;a liquid nozzle fixed relative to the housing and aimed at the sensor window, the liquid nozzle positioned in a first horizontal direction from the port along the panel; anda tunnel extending along the panel and positioned in a second horizontal direction from the port, the second horizontal direction being opposite the first horizontal direction, the tunnel terminating at an opening positioned to receive fluid outputted by the liquid nozzle.2. The sensor apparatus of claim 1 , wherein the panel includes an air deflector positioned in the first horizontal direction from the port.3. The sensor apparatus of claim 2 , wherein the air deflector includes a ramp oriented in the first horizontal direction.4. The sensor apparatus of claim 2 , wherein the air deflector includes a concave surface oriented in the second horizontal direction.5. The sensor apparatus of claim 4 , wherein the concave surface has a constant cross-section elongated transverse to the second horizontal direction.6. The sensor apparatus of claim 2 , further comprising an air nozzle on the panel underneath the air deflector.7. The sensor apparatus of claim 2 , wherein the air deflector has a constant cross-section ...

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Номер записи: 46
28-01-2016 дата публикации

System and method for monitoring optical subsystem performance in cloud lidar systems

Номер: US20160025842A1
Автор: Kaare J. Anderson, Mark D. Ray
Принадлежит: Rosemount Aerospace Inc

A method of detecting optical subsystem failures includes emitting a pulsed light beam from a laser through a window. A reflection signal indicative of a portion of the beam reflected by the window is compared to an expected signal to monitor for degradation of an optical component.

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Номер записи: 47
26-01-2017 дата публикации

APPARATUS AND METHOD FOR HIGH SPEED SUBSURFACE INSPECTION OF BUILT INFRASTRUCTURE

Номер: US20170023671A1
Автор: Scott Michael Leon
Принадлежит:

A ground penetrating radar antenna array is consistently maintained at a spacing of less than or equal to about 4 inches above the target surface. As a result, the antenna array may be moved up to 75 mph while maintaining accuracy of data collection. The apparatus includes a wooden support from which non-elastic straps are suspended. The straps are attached to a housing containing the ground penetrating radar antenna array and receiver. The housing is supported from below by a pair of skis that have wear plates attached to their undersides with the wear plates engaging the target surface. The wear plates maintain the distal ends of the antennas within the antenna array at a spacing from the target surface of less than or equal to 4 inches, preferably 3.75±0.25 inches. The method of operation is also disclosed. 1. An apparatus for high speed inspection of built infrastructure , comprising:a) an upper support;b) a housing containing an array of ground penetrating radar antennas aimed downward;c) non-stretchable straps attached between said upper support and said housing;d) said housing supported from below on a pair of skis spaced from a target surface by wear plates;e) said apparatus supported on a vehicle movable over said target surface to facilitate collection of data concerning structures beneath or behind said target surface.2. The apparatus of claim 1 , wherein said upper support comprises a pair of beams.3. The apparatus of claim 1 , wherein said straps comprise four straps.4. The apparatus of claim 1 , further including a foam lining within said housing and surrounding said array.5. The apparatus of claim 1 , further wherein distal ends of antennas of said array are spaced from said target surface by a distance of less than or equal to 4 inches.6. The apparatus of claim 5 , wherein said distance is 3.75±0.25 inches.7. The apparatus of claim 1 , wherein said housing is spaced from said skis by dampers.8. The apparatus of claim 7 , wherein said dampers are made ...

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Номер записи: 48
26-01-2017 дата публикации

VEHICULAR RADAR ADJUSTMENT MECHANISM

Номер: US20170023674A1
Автор: Aleem Muhammad Azhar, Fath Brian, GAYNIER Fred, Lawor David James
Принадлежит:

A vehicle is provided with a forward-looking radar (FLR) assembly. The assembly includes a radar module mounted to a bracket or frame of the vehicle. Because precision in the angular positioning of the radar is desirable, the radar module is designed such that its vertical angular orientation can be adjustable. An adjustment screw connects the radar module and the bracket. The adjustment screw is provided with a plurality of annular flat engagement surfaces between the radar module and the bracket. Rotation of the engagement surfaces rotates the adjustment screw, causing the radar module to angularly adjust relative to the bracket. The engagement surfaces being between the radar module and the bracket allow for adjustment of the adjustment screw from its side in addition to its end surfaces. 1. A vehicle radar assembly comprising:a radar module having a flange;a bracket; anda fastener securing and spacing apart the flange and bracket, the fastener including a threaded shaft threadedly engaged with one of the flange and bracket, and a nut fixed with the shaft between the flange and bracket such that rotation of the nut adjusts a position of the radar module along an axis of the fastener relative to the bracket.2. The assembly of claim 1 , wherein the nut defines a plurality of generally planar engagement surfaces.3. The assembly of claim 1 , wherein the nut is connected to the fastener via a weld connection.4. The assembly of claim 1 , wherein the nut and shaft are a single unitary machined piece.5. The assembly of claim 1 , further comprising a second fastener affixing the flange to the bracket in a fixed spaced-apart relationship to maintain a fixed distance between the flange and the bracket along an axis of the second fastener during rotation of the nut.6. A vehicle radar assembly comprising:a radar module mounted to the vehicle and defining a non-threaded aperture;a bracket spaced from the radar module and defining a threaded aperture; anda fastener having a ...

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Номер записи: 49
25-01-2018 дата публикации

AUTOMATED VEHICLE RADAR SYSTEM WITH AUTO-ALIGNMENT FOR AZIMUTH, ELEVATION, AND VEHICLE SPEED-SCALING-ERROR

Номер: US20180024228A1
Автор: Liu Yu, Schiffmann Jan K., Schwartz David A., Zhu Xumin
Принадлежит:

In accordance with one embodiment, a radar system with auto-alignment suitable for use in an automated vehicle is provided. The system includes a radar-sensor, a speed-sensor, and a controller. The radar-sensor is used to detect objects present in a field-of-view proximate to a host-vehicle on which the radar-sensor is mounted. The radar-sensor is operable to determine a measured-range-rate (dRm), a measured-azimuth-angle (Am), and a measured-elevation-angle (Em) to each of at least three objects present in the field-of-view. The speed-sensor is used to determine a measured-speed (Sm) of the host-vehicle. The controller is in communication with the radar-sensor and the speed-sensor. The controller is configured to simultaneously determine a speed-scaling-error (Bs) of the measured-speed, an azimuth-misalignment (Ba) of the radar-sensor, and an elevation-misalignment (Be) of the radar-sensor based on the measured-range-rate, the measured-azimuth-angle, and the measured-elevation-angle to each of the at least three objects, while the host-vehicle is moving. 1. A radar system with auto-alignment suitable for use in an automated vehicle , said system comprising:a radar-sensor used to detect objects present in a field-of-view proximate to a host-vehicle on which the radar-sensor is mounted, said radar-sensor operable to determine a measured-range-rate (dRm), a measured-azimuth-angle (Am), and a measured-elevation-angle (Em) to each of at least three objects present in the field-of-view;a speed-sensor used to determine a measured-speed (Sm) of the host-vehicle; anda controller in communication with the radar-sensor and the speed-sensor, said controller configured to simultaneously determine a speed-scaling-error (Bs) of the measured-speed, an azimuth-misalignment (Ba) of the radar-sensor, and an elevation-misalignment (Be) of the radar-sensor based on the measured-range-rate, the measured-azimuth-angle, and the measured-elevation-angle to each of the at least three ...

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Номер записи: 50
25-01-2018 дата публикации

METHOD FOR ACQUIRING TRANSVERSE-POSITION INFORMATION OF A MOTOR VEHICLE ON A CARRIAGEWAY AND MOTOR VEHICLE

Номер: US20180024238A1
Автор: KHLIFI Rachid
Принадлежит:

Method for acquiring transverse-position information of a motor vehicle () on a roadway (), wherein radar data describing at least part of the roadway () are acquired by at least one radar sensor () of the motor vehicle (), environmental features describing the location of a roadway boundary are detected and localized in the radar data by evaluation, from these, a course of the roadway boundaries of the roadway () and lateral distances () of the motor vehicle () with respect to the lane boundaries are determined, and the transverse-position information is determined as, or as a function of, the lateral distances () of the motor vehicle () from the roadway boundaries. 1. A method for acquiring transverse-position information of a motor vehicle on a roadway wherein radar data describing at least part of the roadway is acquired by at least one radar sensor of the motor vehicle , environmental features describing the location of a roadway boundary are detected and localized in the radar data by evaluation , from these , a course of the roadway boundaries of the roadway and lateral distances of the motor vehicle with respect to the roadway boundaries are determined , and the transverse-position information is determined as , or as a function of , the lateral distances of the motor vehicle from the roadway boundaries , wherein a radar sensor with a semiconductor chip implementing the radar transceiver is used as the at least one radar sensor , and , as environment features , a transition from the road surface to another surface is detected and localized , wherein , as transverse-position information , a lane assignment of the motor vehicle is determined , taking into additional consideration further information describing the number of traffic lanes of the roadway , wherein roadway division information derived from digital map data and including section information describing the presence and/or the width and/or the location of a part of the roadway not used as a traffic ...

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Номер записи: 51
23-01-2020 дата публикации

AUTONOMOUS REAR VIEWING SENSOR MOUNT

Номер: US20200023788A1
Автор: CASTLEMAN Bill, Frederick Scott L., Sakowski Andrew L.
Принадлежит: Toyota Motor Engineering & Manufacturing North America, Inc.

Autonomous vehicles are made by fitting sensors to non-autonomous vehicle platforms. A mounting structure to mount rear-facing sensors to the vehicle is needed to provide sensor data about the rear environment of the vehicle. The mounting structure is secured to the vehicle by utilizing existing vehicle body structures. The vehicle body structures include rearward roof chassis parts that provide stability and security to the mounting structure. 1. An autonomous rear-viewing sensor mount for a vehicle comprising:a bracket fit to the vehicle at an existing rear body structure of the vehicle, the bracket including mounts for sensors including at least one of a lidar and radar,wherein the mounts place the sensors in a rear-facing direction of the vehicle.2. The autonomous rear-viewing sensor mount according to claim 1 , wherein the bracket includes a mounting plate modularly attaching the mounts to different parts of the bracket.3. The autonomous rear-viewing sensor mount according to claim 1 , wherein the existing rear body structure of the vehicle is a roof bow reinforcement.4. The autonomous rear-viewing sensor mount according to claim 1 , wherein the existing rear body structure of the vehicle is a rear header reinforcement.5. The autonomous rear-viewing sensor mount according to claim 1 , wherein the bracket provides access from inside a cabin of the vehicle to the sensors.6. The autonomous rear-viewing sensor mount according to claim 1 , wherein the bracket includes reinforcement plate connections with extendable arms.7. The autonomous rear-viewing sensor mount according to claim 1 , wherein the existing rear body structure of the vehicle is near a highest point of the vehicle.8. A method of mounting an autonomous rear-viewing sensor mount for a vehicle comprising:providing a bracket fit to the vehicle at an existing rear body structure of the vehicle, the bracket including mounts for sensors including at least one of a lidar and radar, and the mounts placing the ...

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Номер записи: 52
23-01-2020 дата публикации

Autonomous vehicle glass cleaning system

Номер: US20200023814A1
Автор: Scott L. Frederick, Scott P. Robison
Принадлежит: Toyota Motor Engineering and Manufacturing North America Inc

A glass cleaning system includes: a housing including at least one peripheral sidewalls being substantially perpendicular relative to a side of a vehicle to which the housing is attached, a cover, and a vision system including at least one sensor and processing circuitry, wherein the vision system is disposed in an interior of the housing, the at least one sensor is communicatively coupled to the processing circuitry, and the vision system is configured to be used with the vehicle to detect surrounding objects and determine distances between said objects and the vehicle; a window mounted as the at least one peripheral sidewall of the housing and configured to tilt towards the interior of the housing into an angled orientation and back; a drain duct disposed in the interior of the housing; and at least one spray nozzle.

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Номер записи: 53
10-02-2022 дата публикации

Optoelectronic sensor and method for front window monitoring

Номер: US20220043130A1
Автор: Fabian Jachmann
Принадлежит: SICK AG

An optoelectronic sensor for detecting objects in a monitoring area, the sensor comprising a light transmitter for transmitting a scanning beam, a movable deflection unit for periodically scanning the monitoring area with the scanning beam, a light receiver for generating a received signal from the scanning beam remitted by the objects, a front window, and a control and evaluation unit configured to obtain information about the objects in the monitoring area from the received signal and to detect impaired light transmissivity of the front window in a front window monitoring that evaluates a front window reflection that is generated at the front window by the scanning beam, wherein the control and evaluation unit is further configured to increase the sensitivity of the detection for the front window monitoring.

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Номер записи: 54
24-01-2019 дата публикации

APPARATUS AND METHOD FOR DETECTING AND CORRECTING FOR BLOCKAGE OF AN AUTOMOTIVE RADAR SENSOR

Номер: US20190025404A1
Автор: Farmer William
Принадлежит: Veoneer US, Inc.

A radar detection system and method include a radar detector for transmitting radar signals over a plurality of sweeps, detecting reflected returning radar signals for the sweeps, and converting the reflected returning radar signals into digital data signals, which are processed to by a time-averaging approach by which data for each of a plurality of range-plus-velocity (RV) bins is analyzed over multiple sweeps to detect a first clutter object at particular RV value and an RV-averaging approach by which data for a plurality of RV values within each sweep are combined to form RV averages for each sweep and the RV averages for a plurality of sweeps are analyzed over multiple sweeps to detect a second clutter object. The processor indicates that the radar detector is not blocked if the time-averaging approach or the RV averaging approach results in at least one of the clutter objects being detected. 1. A radar system in a movable host system , the radar system comprising:a radar detector for transmitting radar signals into a region over a plurality of sweeps, detecting reflected returning radar signals for each of the plurality of sweeps, and converting the reflected returning radar signals into digital data signals; anda processor for receiving the digital data signals and processing the digital data signals to detect environmental clutter objects in the region, the processing comprising at least a time-averaging approach by which data for each of a plurality of range-plus-velocity (RV) bins is analyzed over multiple sweeps to detect a first clutter object at particular RV value and an RV-averaging approach independent of the time-averaging approach by which data for a plurality of RV values within each sweep are combined to form RV averages for each sweep and the RV averages for a plurality of sweeps are analyzed over multiple sweeps to detect a second clutter object, the processor generating a signal indicating that the radar detector is not blocked if either of ...

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Номер записи: 55
24-01-2019 дата публикации

APPARATUS AND METHOD FOR DETECTING ALIGNMENT OF SENSOR AND CALIBRATING ANTENNA PATTERN RESPONSE IN AN AUTOMOTIVE DETECTION SYSTEM

Номер: US20190025405A1
Автор: Liu Yong
Принадлежит: Veoneer US, Inc.

A method for calibrating an antenna pattern of a sensor in an automotive detection system includes receiving reflected signals and generating receive signals indicative of the reflected signals. Processing the receive signals to generate detections of objects including one or more ground-stationary clutter objects, each of the detections being associated with a detected azimuth and detected relative velocity of each ground-stationary clutter object. For each of a plurality of angles with respect to a boresight of an antenna of the sensor, processing the detected azimuth and detected velocity of one of the ground-stationary clutter objects and a signal indicative of velocity of the sensor to generate an actual antenna pattern for the antenna of the sensor. A calibrated antenna pattern for the antenna of the sensor is generated using the actual antenna pattern to adjust an assumed antenna pattern. 1. A method for calibrating an antenna pattern of a sensor in an automotive detection system , comprising:transmitting transmitted signals into a region;receiving reflected signals generated by reflection of the transmitted signals and generating receive signals indicative of the reflected signals;receiving the receive signals;generating a signal indicative of velocity of the sensor;processing the receive signals to generate detections of objects in the region, the objects in the region including one or more ground-stationary clutter objects in the region, each of the detections being associated with a detected azimuth and detected relative velocity of each ground-stationary clutter object;for each of a plurality of angles with respect to a boresight of an antenna of the sensor, processing the detected azimuth and detected velocity of one of the one or more ground-stationary clutter objects and the signal indicative of velocity of the sensor to generate an actual antenna pattern for the antenna of the sensor; andusing the actual antenna pattern to adjust an assumed antenna ...

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Номер записи: 56
23-01-2020 дата публикации

METHOD AND SYSTEM FOR DETERMINING A QUANTITY OF LIQUID IN A TANK

Номер: US20200025055A1
Автор: BALDE Mamadou Saliou, GUITARD Pierre-Andre, HUBATZECK Nicolas, ROLLAND Jean-Philippe, SANOGO Yacouba
Принадлежит: Plastic Omnium Advanced Innovation and Research

It is proposed a method for determining a quantity of a liquid in a tank, the tank comprising: a first ultrasound subsystem capable of measuring level of liquid present above a predetermined threshold level within the tank; and at least one second ultrasound subsystem, said second ultrasound subsystem being associated with a sensing area within the tank and being configured to measure a parameter characteristic of the liquid, said sensing area being located below the predetermined threshold level. The method comprises in the steps of: checking the validity of the measurement performed by said first ultrasound subsystem (S); when it is detected that the measurement of said first ultrasound system is not valid: (a) checking (S) the validity of the measurement performed by said second ultrasound subsystem; (b) determining (S S S) a quantity of liquid, which quantity being based on a result of the validity check at step (a). 1. A method for determining a quantity of a liquid in a tank , the tank comprising:a first ultrasound subsystem capable of measuring level of liquid present above a predetermined threshold level within the tank;at least one second ultrasound subsystem, said second ultrasound subsystem being associated with a sensing area within the tank and being configured to measure a parameter characteristic of the liquid, said sensing area being located below the predetermined threshold level,wherein the method comprises the following steps:checking the validity of the measurement performed by said first ultrasound subsystem; (a) checking the validity of the measurement performed by said second ultrasound subsystem;', '(b) determining a quantity of liquid, which quantity being based on a result of the validity check at step (a)., 'when it is detected that the measurement of said first ultrasound system is not valid2. The method according to claim 1 , said first and second ultrasound subsystems being configured to generate a sound wave and to detect an echo of ...

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Номер записи: 57
23-01-2020 дата публикации

RADAR RECEIVER AND METHOD FOR RECEIVING A RADAR SIGNAL

Номер: US20200025872A1
Автор: Herzinger Stefan
Принадлежит:

Implementations of the present disclosure relate to a radar receiver for a real-valued analog RF radar signal. The radar receiver comprises a quadrature mixer circuit configured to generate, from the real-valued analog RF radar signal, a complex-valued analog signal comprising an inphase (I) signal component and a quadrature (Q) signal component, an analog polyphase filter configured to filter the I- and Q-signal components of the complex-valued analog signal to generate filtered I- and Q-signal components, and an analog-to-digital converter coupled to an output of the analog polyphase filter. The radar receiver is configured to convert only one of the filtered I- and Q-signal components from the analog to the digital signal domain. 1. A radar receiver for a real-valued analog radio frequency (RF) radar signal , the radar receiver comprising:a quadrature mixer circuit configured to generate, from the real-valued analog RF radar signal, a complex-valued analog signal comprising an inphase (I) signal component and a quadrature (Q) signal component;an analog polyphase filter configured to filter the I-signal component and the Q-signal component of the complex-valued analog signal to generate filtered I- and Q-signal components; and 'wherein the radar receiver is configured to convert only one of the filtered I- and Q-signal components from an analog signal domain to a digital signal domain.', 'an analog-to-digital converter coupled to an output of the analog polyphase filter,'}2. The radar receiver of claim 1 , wherein the analog polyphase filter is configured to have an asymmetric transfer function with respect to zero frequency.3. The radar receiver of claim 1 , wherein a transition from a passband to a stopband of the analog polyphase filter comprises zero frequency.4. The radar receiver of claim 1 , wherein the analog polyphase filter comprises an I-branch and a Q-branch claim 1 , wherein the I-branch and the Q-branch are cross-coupled.5. The radar receiver of ...

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Номер записи: 58
23-01-2020 дата публикации

Radar Saturating Clutter Mitigation by Waveform Selection

Номер: US20200025874A1
Автор: Foreman Terry Lee
Принадлежит: United States of America, as Represented by the Secretary of the Navy

A computer-implemented method is provided for maximizing surveillance volume in a radar system. This includes determining saturation range probability ; determining sensitivity probability f; calculating surveillance volume from multiplying the saturation range probability by the sensitivity probability as V=f; and adjusting the radar system to maximize the surveillance volume. 1. A computer-implemented method in a radar system for optimizing radar performance of a transmission signal to detect a target against clutter by minimizing saturation while maintaining sensitivity , said target responding to said transmission signal as a scatterer said method comprising:establishing a sequence plurality of radar settings for the radar system to transmit based on expected size and speed of the target that responds to a radar, each radar setting including a power level for transmission power, a waveform duty cycle and a sensitivity reduction;{'o': {'@ostyle': 'single', 'f'}, 'sub': 'sat', 'determining non-saturation range probability for said each radar setting from said sequence plurality with at least one scatterer presumed in the clutter, said non-saturation range probability denoting a portion of radar range unaffected by saturating clutter, said non-saturation range probability depending on said power level and said duty cycle for a corresponding radar setting;'}{'sub': 'sens', 'determining sensitivity probability fof the target detection for said each radar setting from said sequence plurality in response to said sensitivity reduction;'}{'sub': s', 'sat', 'sens, 'o': {'@ostyle': 'single', 'f'}, 'calculating surveillance volume from multiplying said saturation range probability by said sensitivity probability as V=ffor each said radar setting as a corresponding plurality of surveillance volumes;'}{'sub': 's', 'identifying maximum surveillance volume in said plurality of surveillance volumes Vand its associated maximum volume radar setting;'}selecting the transmission ...

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Номер записи: 59
23-01-2020 дата публикации

METHOD AND SYSTEM FOR SIMULATION-ASSISTED DETERMINATION OF ECHO POINTS, AND EMULATION METHOD AND EMULATION APPARATUS

Номер: US20200025875A1
Автор: MAIER Franz Michael
Принадлежит:

A method and a system for simulation-assisted determination of at least one actual echo point of an object, and a method and an emulation apparatus for emulating a detection target. Here, a predicted object reference point of the object and a predicted sensor device reference point of a sensor device, in particular a radar-based sensor device, are calculated on the basis of an actual object reference point and an actual sensor device reference point and a predicted echo point of the object is calculated on the basis of an emission characteristic of the sensor device, the predicted object reference point, and the predicted sensor device reference point. Moreover, a predicted relative relationship, in particular a spatial relative relationship, is calculated between the predicted echo point and the predicted object reference point. An updated actual object reference point is calculated, in particular at least substantially in real time, and a simulated actual echo point of the object determined on the basis of the predicted relative relationship and the updated actual object reference point, in particular at least substantially in real time. The simulated actual echo point output. 1. A method for the simulation-assisted determination of at least one actual echo point of an object , comprising the following procedural steps:{'b': '1', 'S calculating a predicted object reference point of the object and a predicted sensor device reference point of a radar-based sensor device on the basis of an actual object reference point and an actual sensor device reference point;'}{'b': '2', 'S determining a predicted echo point of the object on the basis of an emission characteristic of the radar-based sensor device, the predicted object reference point and the predicted sensor device reference point;'}{'b': '3', 'S calculating a predicted spatial relative relationship between the predicted echo point and the predicted object reference point;'}{'b': '4', 'S calculating an updated ...

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Номер записи: 60
23-01-2020 дата публикации

IN-VEHICLE RADAR DEVICE

Номер: US20200025905A1
Автор: AKAMINE Yusuke, Kawasaki Naoki, MIYAKE Yasuyuki
Принадлежит:

An in-vehicle radar device includes a transmission section, a reception section, an analysis section, an extraction section, a speed calculation section, a distance calculation section, and a folding detection section. The folding detection section detects occurrence of erroneous calculation of a distance, when reflection intensity at a frequency peak obtained by the extraction section is smaller than a preset intensity threshold for a distance calculated by the distance calculation section and a frequency width in a frequency spectrum calculated by the analysis section is smaller than a preset width threshold. 1. An in-vehicle radar device mounted in a vehicle , the in-vehicle radar device comprising:a transmission section configured to alternately transmit two types of continuous waves having different frequencies;a reception section configured to receive a reflected wave generated by reflection by a target of the continuous wave transmitted from the transmission section and generate a frequency difference signal of the received reflected wave and the continuous wave;an analysis section configured to calculate a frequency spectrum of the frequency difference signal generated by the reception section;an extraction section configured to obtain a frequency peak in the frequency spectrum calculated by the analysis section and extract a moving object;a speed calculation section configured to calculate a relative speed to the vehicle of the moving object extracted by the extraction section, from the frequency peak in the frequency spectrum;a distance calculation section configured to calculate a distance from the vehicle to the moving object, from a phase difference between two types of the frequency difference signals corresponding to the two types of continuous waves; anda folding detection section configured to detect occurrence of erroneous calculation of the distance due to phase difference folding that causes the phase difference to be 2π or more, whereinthe ...

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Номер записи: 61
28-01-2021 дата публикации

ELECTRONIC APPARATUS, CONTROL METHOD FOR ELECTRONIC APPARATUS, AND CONTROL PROGRAM FOR ELECTRONIC APPARATUS

Номер: US20210025970A1
Автор: NISHIKIDO Masamitsu, OOTSUKI Yutaka, SAHARA Tooru
Принадлежит: KYOCERA CORPORATION

An electronic apparatus includes a controller configured to control switching between a first mode in which radiation of transmission waves is directed in a first direction and a second mode in which radiation of transmission waves is directed in a second direction downward from the first direction. When a predetermined status is detected in the first mode, the controller performs control to switch to the second mode. 1. An electronic apparatus comprising:a transmitter configured to transmit transmission waves;a receiver configured to receive reflected waves from among the transmission waves reflected by an object; anda controller configured to perform control to switch between a first mode in which radiation of the transmission waves is directed in a first direction and a second mode in which radiation of the transmission waves is directed in a second direction downward from the first direction,wherein the controller performs control to switch to the second mode when a predetermined status is detected in the first mode.2. The electronic apparatus according to claim 1 , usinga transmission antenna that radiates the transmission waves in the first direction in the first mode, anda transmission antenna that radiates the transmission waves in the second direction in the second mode.3. The electronic apparatus according to claim 1 ,wherein, in the first mode, a phase of a plurality of transmission antennas arranged in a vertical direction is controlled such that the transmission waves are radiated in the first direction, andin the second mode, the phase of the plurality of transmission antennas is controlled such that the transmission waves are radiated in the second direction.4. The electronic apparatus according to claim 1 ,wherein an electric power used to transmit the transmission waves in the second mode is less than an electric power used to transmit the transmission waves in the first mode.5. The electronic apparatus according to claim 1 ,wherein the first ...

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Номер записи: 62
28-01-2021 дата публикации

METHOD FOR CALIBRATING A MIMO RADAR SENSOR FOR MOTOR VEHICLES

Номер: US20210025972A1
Автор: Loesch Benedikt
Принадлежит:

A method for the phase calibration of a MIMO radar sensor having an array of transmitting and receiving antenna elements that are offset from each other in at least one direction, and high-frequency modules, which are each assigned to a part of the array. The array is subdivided into transmitting subarrays and receiving subarrays in such a manner, that each subarray is assigned to exactly one of the high-frequency modules and at least two receiving subarrays, which belong to different high-frequency modules, are offset from each other in the at least one direction and are aligned with each other in the direction perpendicular to it. The method includes a calibration which corrects a receiving control vector with the aid of a known relationship between first and second comparison variables for the respective receiving subarrays. 14- (canceled)5. A method for phase calibration of a MIMO radar sensor having an array of a plurality of transmitting and receiving antenna elements , which are offset from each other in at least one direction , and having a plurality of high-frequency modules , which are each assigned to a part of the array , wherein the array is subdivided into transmitting subarrays and receiving subarrays in such a manner , that each of the transmitting and receiving subarrays is assigned to exactly one of the high-frequency modules , and wherein at least two of the receiving subarrays , which are assigned to different ones of the high-frequency modules , are offset from each other in the at least one direction and are aligned with each other in a direction perpendicular to it , the method including at least one calibration routine comprising the following steps: 'storing a directional diagram, which assigns each of a plurality of angles a respective control vector, which includes a transmitting control vector and a receiving control vector, the transmitting and receiving control vectors each including at least one component for each of the transmitting ...

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Номер записи: 63
28-01-2021 дата публикации

PHASE CALIBRATION OF A RADAR SYSTEM WITH CROSSTALK CANCELLATION

Номер: US20210025973A1
Автор: ARRIOLA Werner, FIORE Vincenzo, KOBLER Rene, LANG Oliver, MELZER Alexander
Принадлежит: INFINEON TECHNOLOGIES AG

A method for the use in a radar system is described herein. In accordance with one embodiment, the method includes providing a local oscillator signal to an RF output channel of a radar system. The RF output channel is configured to generate, in an enabled state, an RF output signal based on the local oscillator signal. The method further includes determining a first measurement signal based on the local oscillator signal and a first representation of the RF output signal, while the RF output channel is disabled, and thus the first measurement signal represents crosstalk. Further, the method includes determining a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is enabled. A phase value associated with the RF output channel is determined based on the first measurement signal and the second measurement signal. 1. A method , comprising:providing a local oscillator signal to an RF output channel of a radar system, the RF output channel being configured to generate, in an enabled state, an RF output signal based on the local oscillator signal;determining a first measurement signal based on the local oscillator signal and a first representation of the RF output signal while the RF output channel is disabled, the first measurement signal representing crosstalk;determining a second measurement signal based on the local oscillator signal and a second representation of the RF output signal while the RF output channel is enabled; anddetermining a phase value associated with the RF output channel based on the first measurement signal and the second measurement signal.2. The method of claim 1 , wherein determining the first measurement signal comprises:generating a test signal based on the local oscillator signal and phase-shifting either the test signal or the first and the second representations of the RF output signal by a test phase;mixing the test signal with the first ...

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Номер записи: 64
28-01-2021 дата публикации

SENSOR DRAINAGE SYSTEM

Номер: US20210025982A1
Автор: Baldovino Segundo, JR. Michael, Krishnan Venkatesh, Patil Sunil Reddy, Phinisee Rashaun, Robertson
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A sensor assembly includes a cylindrical sensor housing extending vertically upward from a sensor-housing bottom, a gutter elongated circumferentially around the sensor-housing bottom, a drain channel extending radially outward from the gutter, at least one air nozzle positioned radially outside the gutter and directed radially inward, and a panel extending above and radially inward from the air nozzle. 1. A sensor assembly comprising:a cylindrical sensor housing including a sensor-housing bottom and extending vertically upward from a sensor-housing bottom;a gutter elongated circumferentially around the sensor-housing bottom;a drain channel extending radially outward from the gutter;at least one air nozzle positioned radially outside the gutter and directed radially inward; anda panel extending above and radially inward from the air nozzle.2. The sensor assembly of claim 1 , further comprising a gutter wall claim 1 , wherein the gutter extends radially outward from the sensor housing to the gutter wall.3. The sensor assembly of claim 2 , wherein the gutter wall is elongated circumferentially around the sensor housing from the drain channel to the drain channel.4. The sensor assembly of claim 3 , wherein the panel is elongated circumferentially around the sensor housing from the drain channel to the drain channel claim 3 , and the panel defines a gap between the panel and the gutter wall.5. The sensor assembly of claim 2 , wherein the panel extends from radially outside the gutter wall to radially inside the gutter wall.6. The sensor assembly of claim 2 , wherein the gutter wall and the panel form the air nozzle.7. The sensor assembly of claim 2 , wherein the gutter and the gutter wall form a single piece.8. The sensor assembly of claim 2 , further comprising a lip extending radially inward from the gutter wall and spaced from the gutter.9. The sensor assembly of claim 1 , wherein the panel is elongated circumferentially around the sensor housing from the drain ...

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Номер записи: 65
28-01-2021 дата публикации

VEHICLE SENSOR ASSEMBLY

Номер: US20210025983A1
Автор: Krishnan Venkatesh, Patil Sunil Reddy
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

An assembly includes a housing defining a chamber and having an air inlet. The assembly includes a blower in the chamber and in fluid communication with the air inlet. The assembly includes a sensor defining a field of view and supported by the housing. The housing has an outlet vent of variable size. The outlet vent is in communication with the blower and aimed across the field of view of the sensor. 1. An assembly , comprising:a housing defining a chamber and having an air inlet;a blower in the chamber and in fluid communication with the air inlet; anda sensor defining a field of view and supported by the housing;the housing having an outlet vent of variable size, the outlet vent in communication with the blower and aimed across the field of view of the sensor.2. The assembly of claim 1 , wherein the outlet vent includes a plate movable between a first position and a second position claim 1 , the outlet vent having a larger size when the plate is in first position than in the second position.3. The assembly of claim 1 , wherein the outlet vent is pivotable relative to the housing.4. The assembly of claim 1 , the housing having a second outlet vent aimed to direct air across the field of view of the sensor between the sensor and the air from the outlet vent.5. The assembly of claim 4 , wherein the outlet vent partially encircles the sensor and the second outlet vent encircles the field of view of the sensor.6. The assembly of claim 1 , wherein the housing has a second outlet vent between the sensor and the outlet vent.7. The assembly of claim 1 , further comprising a lens in the field of view of the sensor claim 1 , the housing having a second outlet vent aimed to direct air across the lens.8. The assembly of claim 1 , wherein the outlet vent is arcuate.9. The assembly of claim 1 , wherein the outlet vent has a fixed length and a variable width.10. The assembly of claim 1 , wherein the sensor is a LIDAR sensor and extends from the housing.11. A vehicle claim 1 , ...

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Номер записи: 66
28-01-2021 дата публикации

Radar sensor, interchangeable radar sensor arrangement, field device and container

Номер: US20210026001A1
Автор: Joerg Boersig, Levin Dieterle, Roland Welle, Steffen WAELDE
Принадлежит: VEGA Grieshaber KG

A radar sensor device including a first radar sensor arrangement configured to measure a fill level of a medium in a container and a second radar sensor arrangement configured to monitor an environment of the radar sensor outside the container.

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Номер записи: 67
28-01-2021 дата публикации

IN PHASE (I) AND QUADRATURE (Q) IMBALANCE ESTIMATION IN A RADAR SYSTEM

Номер: US20210026005A1
Автор: Bharadwaj Sachin, MURALI Sriram, Subburaj Karthik
Принадлежит:

A radar system is provided that includes transmission signal generation circuitry, a transmit channel coupled to the transmission generation circuitry to receive a continuous wave test signal, the transmit channel configurable to output a test signal based on the continuous wave signal in which a phase angle of the test signal is changed in discrete steps within a phase angle range, a receive channel coupled to the transmit channel via a feedback loop to receive the test signal, the receive channel including an in-phase (I) channel and a quadrature (Q) channel, a statistics collection module configured to collect energy measurements of the test signal output by the I channel and the test signal output by the Q channel at each phase angle, and a processor configured to estimate phase and gain imbalance of the I channel and the Q channel based on the collected energy measurements. 1. A system comprising:a set of transmit paths each configured to couple to a respective antenna, wherein a first transmit path of the set of transmit paths includes a phase shifter configured such that the first transmit path is configured to provide a test signal that includes signal portions at each of a set of phases;a loopback path coupled to the first transmit path; receive the test signal;', 'provide a respective in-phase response to the test signal; and', 'provide a respective quadrature response to the test signal; and, 'a set of receive paths each coupled to the loopback path and configured to couple to a respective antenna, wherein each of the set of receive paths is configured toa control module coupled to the set of receive paths and configured to, for each receive path of the set of receive paths, determine at least one of: a phase imbalance or a gain imbalance for the respective receive path based on the respective in-phase response and the respective quadrature response.2. The system of claim 1 , wherein the control module is configured to determine the at least one of the ...

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Номер записи: 68
02-02-2017 дата публикации

SET-UP FOR MEASURING A ROTATIONAL SPEED, IN PARTICULAR, OF A TURBOCHARGER OF A MOTOR VEHICLE

Номер: US20170031014A1
Автор: BANNWARTH STEPHAN, Lerchenmueller Klaus, Seidel Juergen
Принадлежит:

For a set-up for measuring a rotational speed of a turbocharger of a motor vehicle, including at least one antenna for generating and/or receiving electromagnetic radiation and an electronic module having at least one electric and/or electronic component and being electrically connected to the antenna. The set-up further includes a housing shell made at least partially of laser-absorbing material and having an inner chamber, and a housing cover, which rests on at least one laser-absorbing contact surface of the housing shell and covers the inner chamber of the housing shell at least partially, and at least sections of which are made of material transparent to laser radiation; the antenna and the electronic module being situated in the inner chamber of the housing shell, and at least sections of the housing cover being welded to the housing shell at the at least one contact surface using a laser-welded seam. 1. A set-up for measuring a rotational speed of a turbocharger of a motor vehicle , comprising:at least one antenna for at least one of generating and receiving electromagnetic radiation;an electronic module, which includes at least one of an electric and electronic component, the electronic module being electrically connected to the antenna;a housing shell which is made at least partially of laser-absorbing material and includes an inner chamber; anda housing cover having a first side which abuts against at least one laser-absorbing contact surface of the housing shell and at least partially covers the inner chamber of the housing shell, and at least sections of the housing cover are made of material transparent to laser radiation, the antenna and the electronic module being situated in the inner chamber of the housing shell, and at least sections of the housing cover being welded to the housing shell at the at least one contact surface, using a laser-welded seam.2. The set-up as recited in claim 1 , wherein at least sections of the housing cover are made of a ...

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Номер записи: 69
04-02-2016 дата публикации

RADAR DEVICE, IN PARTICULAR FOR A MOTOR VEHICLE

Номер: US20160033621A1
Автор: Ottenhues Thomas, Sahlheiser Henrik, Schulte Michael, Stapel Dietmar, Wixforth Thomas
Принадлежит:

A radar device, in particular for a motor vehicle, which includes a housing having a first housing part that defines a receiving space () The housing also includes a second housing part, which is attached to the first housing part and forms a cover for at least the receiving space. Aa circuit board is accommodated within the housing, and the circuit board has at least one transmission antenna means for transmitting radar beams. The circuit board also has at least one receiving antenna means for receiving radar beams on a first surface which faces the second housing part when in the intended mounted position. The circuit board further includes electronic high frequency circuitry components and low frequency circuitry components on a second surface, as well as at least one shielding means inside the housing. The shielding means is configured for shielding against electromagnetic radiation. The shielding means comprises an integral shielding body disposed between the first housing part and the second housing part, and which is designed such that it can enclose the electronic high frequency circuitry components and the low frequency circuitry components. 1. A radar device comprising:a housing having a first housing part which defines a receiving space, said housing also having a second housing part which is attached to the first housing part and forms a cover for at least the receiving space; at least one transmission antenna for transmitting radar beams;', 'at least one receiving antenna for receiving radar beams on a first surface which faces the second housing part when in the intended mounted position; and', 'electronic high frequency circuitry components and low frequency circuitry components on a second surface;, 'a circuit board accommodated within the housing, said circuit board havingat least one shielding means inside the housing, wherein the shielding means is configured for shielding against electromagnetic radiation; andwherein the shielding means comprises ...

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Номер записи: 70
04-02-2016 дата публикации

HYBRID VIDEO CAMERA RADAR HOUSING

Номер: US20160033638A1
Автор: Silc Ron
Принадлежит:

An active vehicle safety system. The system comprises a housing configured to rigidly secure an imaging device and a radar device therein; a port configured to accept signals from the imaging device and the radar device and provide power to the imaging device and the radar device; and a display/alarm device for providing output related to the signals from the imaging device and the radar device. A connection from the port to the display/alarm device can be configured to provide images from the imaging device and alarms according to the signals from the radar device. 1. A system comprising:a housing configured to rigidly secure an imaging device and a radar device therein;a port configured to accept signals from said imaging device and said radar device and provide power to said imaging device and said radar device; anda display/alarm device for providing output related to said signals from said imaging device and said radar device.2. The system of further comprising:a connection from said port to said display/alarm device configured to provide images from said imaging device and alarms according to said signals from said radar device.3. The system of further comprising:a lens window formed in said housing configured to provide a lens associated with said imaging device a view of a surrounding environment.4. The system of further comprising a cable gland configured on said housing.5. The system of wherein said port comprises a 6 pin MiniDin.6. The system of further comprising a radar plate in said housing configured to mount said radar device.7. The system of further comprising a vehicle wherein said housing is fixedly attached to said vehicle.8. The system of wherein said housing is configured to fit in a pre-formed grommet associated with said vehicle.9. A method for providing vehicle related safety information comprising:rigidly securing an imaging device and a radar device within a housing wherein said imaging device and radar device collect data from a ...

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Номер записи: 71
01-02-2018 дата публикации

AUTOMATED VEHICLE PROTECTED AND AERODYNAMICALLY LOCATED SENSORS

Номер: US20180031696A1
Автор: Absmeier John P., Laur Michael J., Lewis Matthew J.
Принадлежит:

A sensor mounting arrangement suitable for an autonomous or automated vehicle having an aerodynamic generally rounded or curved front perimeter surface symmetrically arranged relative to a longitudinal axis of the vehicle. The sensor is mounted so as to be tipped toward a more optimal sensing direction, bringing a leading portion outboard of, and a trailing portion inboard of, the ideal front perimeter surface, but putting the sensor in a more optimal sensing orientation. A transparent cover protects the sensor and blends aerodynamically into the front perimeter body surface. 1. In a vehicle having a generally curved front perimeter body surface that is generally symmetrically defined about a longitudinal body axis , and a side mounted sensor having a generally planar , outwardly facing front surface defined between leading and trailing corner edges , a sensor mounting arrangement comprising ,said leading sensor edge being mounted to said vehicle with said leading corner edge outboard of, and said trailing corner edge inboard of, said perimeter surface, and a substantially transparent cover mounted to said vehicle so as to cover said sensor in a weather tight fashion and so as to blend aerodynamically into said front perimeter surface.2. A mounting arrangement according to claim 1 , in which said sensor is a lidar unit and said cover is transparent to light.3. A mounting arrangement according to claim 1 , in which said sensor cover has a relatively short leg covering said sensor leading corner edge and a relatively longer leg covering said sensor front surface.4. A mounting arrangement according to in which said cover is in turn mounted in a trim piece fixed to said vehicle. This application claims the benefit under 35 U.S.C. §371 of published PCT Patent Application Number PCT/US2016/14797, filed 26 Jan. 2016 and published as WO2016/126452 on 11 Aug. 2016, which claims the benefit under 35 U.S.C. § 119(e) of U.S. Provisional Patent Application No. 62/112,783, filed ...

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Номер записи: 72
04-02-2021 дата публикации

METHODS FOR TRAINING A MODEL FOR USE IN RADIO WAVE BASED BLOOD PRESSURE MONITORING

Номер: US20210030282A1
Автор: Leabman Michael A.
Принадлежит:

Methods for training a model for use in monitoring a health parameter in a person are disclosed. In an embodiment, a method involves monitoring a blood pressure of a person using a control blood pressure monitoring system, receiving control data that corresponds to the monitoring using the control blood pressure monitoring system, receiving stepped frequency scanning data that corresponds to radio waves that have reflected from blood in a blood vessel of the person, wherein the stepped frequency scanning data is collected through multiple receive antennas over a range of frequencies, generating training data by combining the control data with the stepped frequency scanning data in a time synchronous manner, and training a model using the training data to produce a trained model, wherein the trained model correlates stepped frequency scanning data to values that are indicative of a blood pressure of a person. 1. A method for training a model for use in monitoring a health parameter in a person , the method comprising:monitoring a blood pressure of a person using a control blood pressure monitoring system;receiving control data that corresponds to the monitoring using the control blood pressure monitoring system;receiving stepped frequency scanning data that corresponds to radio waves that have reflected from blood in a blood vessel of the person, wherein the stepped frequency scanning data is collected through multiple receive antennas over a range of frequencies;generating training data by combining the control data with the stepped frequency scanning data in a time synchronous manner; andtraining a model using the training data to produce a trained model, wherein the trained model correlates stepped frequency scanning data to values that are indicative of a blood pressure of a person.2. The method of claim 1 , wherein generating training data comprises deriving data from the stepped frequency scanning data.3. The method of claim 2 , wherein deriving data from the ...

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Номер записи: 73
17-02-2022 дата публикации

Precision Sleep Tracking Using a Contactless Sleep Tracking Device

Номер: US20220050175A1
Автор: Dixon Michael, Goldenson Andrew William, Janssens David, Kannan Ajay, Lee Reena, Mixter Ken, Shin Dongeek, Udall Ashton, Yu Jeffrey
Принадлежит: Google LLC

Various devices, systems and methods for performing targeted sleep tracking are presented herein. Multiple digital radar data streams from multiple antennas may be received. A direction optimization process may be performed to determine a first weighting and a second weighting. The first weighting may be applied to a first digital radar data stream. The second weighting may be applied to a second digital radar data stream. The weighted first digital radar data stream and the weighted second digital radar data stream may be combined to create a first directionally-targeted radar data stream. A sleep analysis can be performed based on the first directionally-targeted radar data stream. Sleep data may be output for a user based on the performed sleep analysis. 1. A contactless sleep analysis device , the contactless sleep analysis device comprising:a housing;a radar sensor, housed by the housing, that comprises a plurality of antennas and monitors movement using radio waves;{'claim-text': ['receive a plurality of digital radar data streams, wherein each digital stream of the plurality of digital radar data streams is based on radio waves received by an antenna of the plurality of antennas of the radar sensor;', 'perform a direction optimization process to determine a first weighting and a second weighting, wherein the direction optimization process targets a region in a bed where the user sleeps;', 'apply the first weighting to a first digital radar data stream of the plurality of digital radar data streams;', 'apply the second weighting to a second digital radar data stream of the plurality of digital radar data streams;', 'combine the weighted first digital radar data stream and the weighted second digital radar data stream to create a first directionally-targeted radar data stream;', 'perform a sleep analysis based on the first directionally-targeted radar data stream; and', 'output sleep data for a user based on the performed sleep analysis.'], '#text': 'a ...

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Номер записи: 74
17-02-2022 дата публикации

System and Method for Compensating a Motion of a Vehicle Component

Номер: US20220050190A1
Автор: Adam Szoellosi, Andras BATAI, Andras SZAPPANOS, Balazs Gal, Csaba Horvath, Gabor Seres, Huba NEMETH, Jeno BOKA, Viktor Tihanyi
Принадлежит: Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH

A system compensates a motion of a vehicle component relative to another vehicle component or ground. One or more sensors are supported by the vehicle component. The system includes a control unit configured to perform the following acts: receiving sensor data from the one or more sensors; detecting the motion of the vehicle component; and determining compensation data to enable a compensation of deviations in sensor data that are caused by the motion.

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Номер записи: 75
17-02-2022 дата публикации

METHOD AND APPARATUS FOR PROCESSING CFAR OF SENSOR DATA

Номер: US20220050196A1
Автор: EO Min Sung
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A method and apparatus for processing a constant false alarm rate (CFAR) of sensor data are disclosed. The method includes determining whether a skip condition for an averaging operation on a current frame of radar data is satisfied based on a data variation level of the current frame, skipping the averaging operation on the current frame and obtaining previous mean data of a previous frame of the radar data, in response to the skip condition being satisfied, generating current mean data by performing the averaging operation on the current frame, in response to the skip condition not being satisfied, and performing a CFAR operation on the current frame based on one of the previous mean data or the current mean data. 1. A radio detection and ranging (radar) signal processing method , comprising:determining whether a skip condition for an averaging operation on a current frame of radar data is satisfied based on a data variation level of the current frame;skipping the averaging operation on the current frame and obtaining previous mean data of a previous frame of the radar data, in response to the skip condition being satisfied;generating current mean data by performing the averaging operation on the current frame, in response to the skip condition not being satisfied; andperforming a constant false alarm rate (CFAR) operation on the current frame based on one of the previous mean data or the current mean data.2. The radar signal processing method of claim 1 , wherein the data variation level is estimated based on at least one of an ego velocity of a vehicle or frames per second (FPS) of a radar sensor.3. The radar signal processing method of claim 1 , wherein the determining of whether the skip condition is satisfied comprises:determining that the skip condition is satisfied, in response to an ego velocity of a vehicle being less than a velocity threshold.4. The radar signal processing method of claim 1 , wherein the determining of whether the skip condition is ...

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Номер записи: 76
05-02-2015 дата публикации

RADAR CALIBRATION SYSTEM FOR VEHICLES

Номер: US20150035697A1
Автор: CHO Ji-Hoon
Принадлежит:

Disclosed herein is a radar calibration system for vehicles. The radar calibration system for vehicles includes a target simulator receiving a radar signal through a reception antenna, delaying the received signal through a delay line, and transmitting the delayed signal through a transmission antenna, and a radar apparatus transmitting the radar signal to the target simulator through a transmission antenna, receiving the delayed signal from the target simulator through a plurality of reception antennas, calculating phase differences among the delayed signals received through the plurality of reception antennas, and generating and storing phase correction values of reception channels of the plurality of reception antennas to correct the calculated phase differences. 1. A radar calibration system for vehicles comprising:a target simulator receiving a radar signal through a reception antenna, delaying the received signal through a delay line, and transmitting the delayed signal through a transmission antenna; anda radar apparatus transmitting the radar signal to the target simulator through a transmission antenna, receiving the delayed signal from the target simulator through a plurality of reception antennas, calculating phase differences among the delayed signals received through the plurality of reception antennas, and generating and storing phase correction values of reception channels of the plurality of reception antennas to correct the calculated phase differences.2. The radar calibration system for vehicles according to claim 1 , wherein the target simulator includes the transmission antenna claim 1 , the reception antenna claim 1 , a delay line unit causing the received signal to pass through a delay passage having a predetermined length to delay the signal received through the reception antenna claim 1 , and a transmission controller transmitting the signal having passed through the delay line unit to the radar apparatus through the transmission antenna.3. ...

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Номер записи: 77
05-02-2015 дата публикации

RADAR SENSOR DEVICE HAVING AN ADJUSTING MIRROR

Номер: US20150035703A1
Автор: Weber Dieter, Zeller Gerald, Zoeller Michael
Принадлежит:

A radar sensor device for motor vehicles, having a sensor housing, which includes a radome; a fastening section having an engagement contour for a fastening element which is in engagement with the engagement contour and carries a mirror-reflective region; and further fastening sections having engagement contours that are suitable for the engagement of such a fastening element, to fasten the radar sensor device in the installation location in the motor vehicle; and a method for fastening a mirror to a radar sensor device for motor vehicles. Fastening elements of a similar type, which are suitable for the engagement with engagement contours of fastening sections of the radar sensor device, are provided, and at least one of the fastening elements is provided with a mirror-reflective region, so that a mirror is formed; and the fastening elements are fastened to the fastening sections. 110.-. (canceled)11. A radar sensor device for motor vehicles , comprising:a sensor housing that includes a radome;at least one first fastening section having a first engagement contour for a fastening element, the fastening element being in engagement with the first engagement contour and carrying a mirror-reflective region; andat least one further fastening section having a further engagement contour that is suitable for an engagement of the fastening element and that is for fastening the radar sensor device in an installation location in the motor vehicle.12. The radar sensor device as recited in claim 11 , wherein the mirror-reflective region is formed by a mirror that is retained at the fastening element.13. The radar sensor device as recited in claim 11 , further comprising:at least one fastening screw for fastening the radar sensor device in the installation location in the motor vehicle, wherein the fastening screw is fastened to the radar sensor device via a second fastening element that is in engagement with one of the first engagement contour of the first fastening section and ...

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Номер записи: 78
31-01-2019 дата публикации

Device for monitoring the position of an object by means of sound waves

Номер: US20190033444A1
Автор: Roman STEINER
Принадлежит: ELESTA GMBH

A device for monitoring the local orientation or position of an object by sound waves, with a sensor part positioned at a distance from the object with at least one sound wave emitter, at least one sound wave receiver, and a computing unit. The computing unit controls the at sound wave emitter and the sound wave receiver and determines the distance between the sensor part and the object, based on the echoes of a sound wave emitted by the sound wave emitter in the direction of the object. An identification reflector separate from the sensor part comprises a three-dimensional pattern. The sensor part has an array of sound wave receivers and sound wave emitters, wherein for identifying the identification reflector and for measuring the distance between the sensor part and the identification reflector, a plurality of echoes between different emitter/receiver-combinations is evaluated.

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Номер записи: 79
01-02-2018 дата публикации

ON-VEHICLE RADAR DEVICE AND VEHICLE

Номер: US20180034141A1
Автор: KAMO Hiroyuki
Принадлежит:

An on-vehicle radar device includes a mount and an antenna configured to transmit a transmission wave from an inner side of laminated glass, which includes an innermost glass layer, an outermost glass layer, and an intermediate resin layer, and receive a reflected wave. The antenna includes a transmitting antenna. When the mount is mounted on a bracket, the incident angle of the transmission wave on the innermost glass layer is greater than a Brewster angle on the inner surface of the innermost glass layer, and the incident angle of the transmission wave on the outermost glass layer is less than or equal to a Brewster angle between the outermost glass layer and the intermediate resin layer. 1. An on-vehicle radar device comprising:a mount configured to be mounted on a bracket that is fixed to one of an innermost glass layer of laminated glass, a rear-view mirror placed on an inner side of the innermost glass layer, and a ceiling, the laminated glass including the innermost glass layer, an outermost glass layer, and an intermediate resin layer that is sandwiched between the innermost glass layer and the outermost glass layer;an antenna configured to transmit a transmission wave from the inner side of the innermost glass layer to an outer side of the outermost glass layer and to receive a reflected wave that enters from the outer side of the outermost glass layer to the inner side of the innermost glass layer, the transmission wave being a radio wave in a millimeter wave band; whereinthe antenna includes at least a first transmitting antenna and a second transmitting antenna both configured to transmit the transmission wave;a vertical polarization component of the transmission wave relative to the laminated glass is greater than a horizontal polarization component thereof;a radiation range of the first transmitting antenna in a horizontal direction is wider than that of the second transmitting antenna in the horizontal direction;when the mount is mounted on the ...

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Номер записи: 80
30-01-2020 дата публикации

RADAR DEVICE FOR VEHICLE

Номер: US20200033440A1
Автор: Park Dong Chan
Принадлежит:

A radar device for a vehicle, according to an embodiment of the present invention, comprises: a case; a first printed circuit board (PCB) that is accommodated in the case and has a plurality of antenna arrays and an integrated circuit (IC) chip that are formed thereon, wherein the IC chip is connected to the plurality of antenna arrays; and a radome that is coupled to the case and covers the first printed circuit board, wherein the radome includes: a cover facing the first printed circuit board; a first wall connected to the cover surface; and a second wall connected to the cover and facing the first wall, wherein the internal angle between the cover and the first wall and the internal angle between the cover and the second wall are formed to be greater than 90° and less than 180°. 1. A radar device for a vehicle , comprising:a case comprising an upper surface and a plurality of side surfaces extending downwardly from the upper surface;a first printed circuit board (PCB) accommodated in the case and comprising formed thereon a plurality of antenna arrays and an integrated circuit (IC) chip connected to the plurality of antenna arrays; anda radome coupled to the case and configured to cover the first PCB,wherein the radome includes:a cover surface having a flat shape facing the first PCB;a first wall surface connected to the cover surface; anda second wall surface connected to the cover surface and configured to face the first wall surface,wherein the cover surface of the radome comprises an outer surface and an inner surface closer to the first PCB than is the outer surface,wherein the first wall surface of the radome comprises an outer surface and an inner surface closer to the first PCB than is the outer surface,wherein the second wall surface of the radome comprises an outer surface and an inner surface closer to the first PCB than is the outer surface,wherein a distance between the inner surface of the first wall surface and the inner surface of the second wall ...

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Номер записи: 81
30-01-2020 дата публикации

METHODS FOR RADAR COEXISTENCE

Номер: US20200033442A1
Автор: GULATI Kapil, Li Junyi, Subramanian Sundar, Unnikrishnan Jayakrishnan
Принадлежит:

A method and apparatus for selecting frequency modulated continuous wave waveform parameters for multiple radar coexistence by a user equipment is described. The user equipment may transmit a radar waveform consisting of a number of chirps, with each chirp having a same duration. The user equipment may vary waveform parameters of the radar waveform for at least a subset of the number of chirp, where the waveform parameters may be chosen from a codebook comprising at least one codeword of parameters. Reflected radar waveforms are received and processed where the processing includes applying a fast time discrete Fourier transform to reflected radar waveforms to produce a one dimension peak in a time delay dimension for each reflected waveform; and applying a slow time discrete Fourier transform to the reflected radar waveforms, where peaks for the reflected waveforms are added. 1. A method for detecting a target using radar signals implemented by a user equipment (UE) , comprising:selecting, from a codebook of waveform parameters, a plurality of waveform parameters for transmitting a corresponding plurality of chirps associated with a radar waveform;transmitting the plurality of chirps according to the corresponding plurality of waveform parameters;receiving a reflected radar waveform from the target comprising a plurality of reflected chirps corresponding to the plurality of chirps; andprocessing the reflected radar waveform based at least in part on the plurality of waveform parameters.2. The method according to claim 1 , wherein the plurality of waveform parameters comprises at least three different waveform parameters.3. The method according to claim 1 , wherein the selecting the plurality of waveform parameters from the codebook comprises randomly selecting the plurality of waveform parameters from the codebook.4. The method according to claim 1 , wherein the plurality of waveform parameters comprises a plurality of pairs of waveform parameters claim 1 , each ...

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Номер записи: 82
30-01-2020 дата публикации

METHOD OF CALIBRATING A RADAR SYSTEM

Номер: US20200033445A1
Автор: Bialer Oded, Bilik Igal, Raphaeli Dani
Принадлежит:

A radar system and method for calibrating a radar system, the method including the steps of: measuring a set of azimuth angles of the radar system to obtain a plurality of measured azimuth array responses, wherein the radar system is physically rotated about a first axis of the radar system between each azimuth angle measurement; measuring a set of elevation angles of the radar system to obtain a plurality of measured elevation array responses, wherein the radar system is physically rotated about a second axis of the radar system between each elevation angle measurement; obtaining an azimuth calibration matrix based on the plurality of measured azimuth array responses and an elevation calibration matrix based on the plurality of measured elevation array responses; and configuring the radar system to apply the azimuth calibration matrix and the elevation calibration matrix to one or more antenna array responses. 1. A method of calibrating a radar system , the radar system comprises a transmit antenna array having a plurality of transmit antennas and a receive antenna array having a plurality of receive antennas , the plurality of transmit antennas are spaced along a transmit antenna array axis and the plurality of receive antennas are spaced along a receive antenna array axis that is perpendicular to the transmit antenna array , the method comprising the steps of:measuring a set of azimuth angles of the radar system to obtain a plurality of measured azimuth array responses, wherein the radar system is physically rotated about a first axis of the radar system between each azimuth angle measurement;measuring a set of elevation angles of the radar system to obtain a plurality of measured elevation array responses, wherein the radar system is physically rotated about a second axis of the radar system between each elevation angle measurement;obtaining an azimuth calibration matrix based on the plurality of measured azimuth array responses and an elevation calibration ...

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Номер записи: 83
30-01-2020 дата публикации

Lidar sensor

Номер: US20200033449A1
Автор: Brent Schwarz, James A. Haslim, Michael D. Karasoff, Nicholas M. Iturraran
Принадлежит: POUCH HOLDINGS LLC, Uatc LLC

A LIDAR sensor includes a fiber laser configured to emit an electromagnetic pulse through a fiber cable, and a fiber cable splitter to split the fiber cable into a first fiber cable and a second fiber cable. The electromagnetic pulse is split into an output pulse that propagates through the first fiber cable and a calibration pulse that propagates through the second fiber cable. The LIDAR sensor includes a pulse receiving sensor configured to detect the calibration pulse and a second pulse corresponding to the output pulse being reflected by a surface external from the LiDAR sensor. A processor is included to receive information from the pulse receiving sensor indicating a position of the surface relative to the LiDAR sensor. The processor further measures an intensity of the calibration pulse and determines a reflectance of the surface based at least in part on the intensity of the calibration pulse.

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Номер записи: 84
30-01-2020 дата публикации

METHOD OF MEASURING AZIMUTH OF RADAR TARGET

Номер: US20200033467A1
Автор: HSIEH CHI-MING, Huang Po-Yao, LIN Chun-Jung, OU YANG LIANG-YU
Принадлежит:

A method of measuring an azimuth of a target by a scanning radar includes (a) establishing a radar scanning model, including (a) selecting an antenna pattern, (a) setting a set of radar parameters, (a) creating reflected signals simulation curve, (a) sampling the reflected signals simulation curve to create a plurality of sets of simulation data, each set is consisted of successive samples, and (a) normalizing each sample of each set of simulation data to create a plurality sets of records of normalized simulation data; (b) obtaining normalized scanning data; (c) comparing records of normalized simulation data with the normalized scanning data; and (d) obtaining an azimuth of the target. 1. A method of measuring an azimuth of a target by a scanning radar , comprising the steps of:{'b': 1', '2', '3', '4', '5, '(a) establishing a radar scanning model, comprising the sub-steps of (a) selecting an antenna pattern, (a) setting a set of radar parameters, (a) creating a reflected signals simulation curve, (a) sampling the reflected signals simulation curve to create a plurality of simulation data, each set is consisted of successive samples, and (a) normalizing each sample of each set of simulation data to create a plurality sets of records of normalized simulation data;'}(b) obtaining normalized scanning data;(c) comparing records of normalized simulation data with the normalized scanning data; and(d) obtaining an azimuth of the target.2. The method as claimed in claim 1 , wherein step (b) comprises the sub-steps of:{'b': '1', '(b) causing the scanning radar to emit a set of scanning signal consisted of the plurality of coherent pulses;'}{'b': '2', '(b) obtaining a plurality of reflected signals from a target;'}{'b': '3', '(b) detecting a target from the reflected signals by pulse Doppler processing and obtaining its Doppler space information;'}{'b': '4', '(b) using inverse Fourier transform to recover the scanning samples from the Doppler space information of the target; ...

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Номер записи: 85
04-02-2021 дата публикации

METHOD AND DEVICE FOR EVALUATING RADAR SIGNALS

Номер: US20210033700A1
Автор: Loesch Benedikt, SCHOOR Michael
Принадлежит:

An improved evaluation of radar signals, in particular radar signals received by a Uniform Linear Array (ULA) antenna. Through the application of a plurality of different beamformings to the radar signals, drops in the gain can be compensated by the beamforming. 110- (canceled).11. A method for evaluating radar signals , comprising the following steps:receiving, by an antenna array, a plurality of radar signals;applying a first beamforming to a radar signal of the plurality of radar signals;applying a second beamforming to a radar signal of the plurality of radar signals, the second beamforming being different from the first beamforming; andevaluating the received plurality of radar signals using results of the first beamforming and of the second beamforming.12. The method as recited in claim 11 , wherein the first beamforming and the second beamforming are each applied to the same radar signal.13. The method as recited in claim 11 , wherein the first beamforming and the second beamforming are each applied to different radar signals of the received plurality of radar signals.14. The method as recited in claim 11 , wherein the applying of the first beamforming and/or the applying of the second beamforming includes applying a complex window function.15. The method as recited in claim 11 , wherein a maximum of the second beamforming is shifted by half a bin relative to a maximum of the first beamforming.16. The method as recited in claim 11 , wherein the method further includes the following step:applying at least one further beamforming to a radar signal of the plurality of radar signals.17. The method as recited in claim 11 , wherein each radar signal of the plurality of radar signals respectively includes receive signals of a plurality of antenna elements of the antenna array.18. A device for evaluating a plurality of radar signals received by an antenna array claim 11 , the device comprising:a first processing device configured to apply a first beamforming to a ...

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Номер записи: 86
04-02-2021 дата публикации

MOTOR VEHICLE WITH A RADAR SENSOR AND METHOD FOR OPERATING THE MOTOR VEHICLE

Номер: US20210033702A1
Автор: JIANU Alin
Принадлежит: Audi AG

A motor vehicle having at least one radar sensor, which is mounted behind a radome, formed by a component of the motor vehicle to be radiated through, and/or having a radome, wherein the motor vehicle further includes a reference structure having at least one radar-detectable marker, which can be controlled by an adjusting apparatus and moved into a measuring position in the detection area of a radar sensor outside the radome, and a control apparatus configured to control the adjusting apparatus, based on a trigger signal, for moving the reference structure into the measuring position and to evaluate radar data recorded by the radar sensor describing the reference structure in the measuring setting through a comparison with a comparison data set stored in the control apparatus and recorded without deposition on the radome for detection of the potential deposition. The trigger signal indicates a potential deposition, which restricts the performance of the radar sensor, on the radome. 110.-. (canceled)11. A motor vehicle comprising:at least one radar sensor that is mounted behind a radome, wherein the radome is formed by a component of the motor vehicle to support radiation through the radome;an adjusting apparatus;a reference structure comprising at least one radar-detectable marker controlled by the adjusting apparatus and moved into a measuring position in the detection area of the radar sensor outside the radome; and control the adjusting apparatus for moving the reference structure into the measuring position; and', 'evaluate radar data recorded by the at least one radar sensor, wherein the radar data corresponds to the reference structure in the measuring position based on comparison with a comparison data set stored in the control apparatus, and wherein the radar data is recorded without deposition on the radome for detection of the potential deposition., 'a control apparatus configured to12. The motor vehicle of claim 11 , wherein the reference structure ...

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Номер записи: 87
30-01-2020 дата публикации

Single clock timeshared channelizer circuit

Номер: US20200036398A1
Автор: Alexander Scott, Daniel Thompson, Harry B. Marr
Принадлежит: Raytheon Co

An RF detection system includes a signal routing processor and a dynamically reconfigurable channelizer. The signal routing processor selects an operating mode of the RF detection system among a plurality of different operating mode. The dynamically reconfigurable channelizer invokes the selected operating mode in response to a routing control signal output by the signal routing processor. The dynamically reconfigurable channelizer includes a plurality of signal processing resources and a crossbar switching circuit. The crossbar switching circuit includes a signal input to receive an input signal and a signal output to output a final processed signal indicating a detected object. The crossbar switching circuit selectively establishes a plurality of different signal routing paths that connect the plurality of signal processing resources to the signal input and signal output.

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Номер записи: 88
09-02-2017 дата публикации

OPTOELECTRONIC MODULES OPERABLE TO RECOGNIZE SPURIOUS REFLECTIONS AND TO COMPENSATE FOR ERRORS CAUSED BY SPURIOUS REFLECTIONS

Номер: US20170038459A1
Автор: Beer Stephan, Buettgen Bernhard, Hallal Bassam, Kubacki Jens, Lehmann Michael, Lewis Jim, PEREZ CALERO Daniel, Vaello Paños Miguel Bruno
Принадлежит: Heptogaon Micro Optics Pte Ltd.

Optoelectronic modules () are operable to distinguish between signals indicative of reflections from an object of interest and signals indicative of a spurious reflection. Various modules are operable to recognize spurious reflections by means of dedicated spurious-reflection detection pixels () and, in some cases, also to compensate for errors caused by spurious reflections. 1. An optoelectronic module comprising:a light emitter to generate light to be emitted from the module;a plurality of spatially distributed light sensitive elements arranged to detect light from the emitter that is reflected by an object outside the module; andone or more dedicated spurious-reflection detection pixels.2. The optoelectronic module of wherein the light emitter is disposed in a first chamber of the module and the spatially distributed light sensitive elements and one or more dedicated spurious-reflection detection pixels are disposed on a second chamber of the module.3. The optoelectronic module of including circuitry operable to use a signal from the one or more dedicated spurious-reflection detection pixels to correct for a spurious reflection.4. The optoelectronic module of including circuitry operable to use a signal from the one or more dedicated spurious-reflection detection pixels to factor out a component of light reflected by a smudge present on a transmissive cover from a component of light detected by the spatially distributed light sensitive elements.5. The optoelectronic module of including circuitry operable to use output signals from the one or more dedicated spurious-reflection detection pixels to determine whether a smudge is present on a glass cover of a host device in which the module is disposed.6. The optoelectronic module of wherein the spatially distributed light sensitive elements are demodulation pixels claim 1 , the module further including processing circuitry operable to determine a distance to an object outside the module based at least in part on ...

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Номер записи: 89
08-02-2018 дата публикации

Failure Detection in a Radar System

Номер: US20180038943A1
Автор: Nayyar Jasbir Singh, Ramasubramanian Karthik, Subburaj Karthik
Принадлежит:

A radar system is provided that includes a receive channel including a complex baseband and a processor coupled to the receive channel to receive a first plurality of digital intermediate frequency (IF) samples from an in-band (I) channel of the complex baseband and a corresponding second plurality of digital IF samples from a quadrature (Q) channel of the complex baseband, wherein the processor is configured to execute instructions to compute at least one failure metric based on the first plurality of digital IF samples and the second plurality of digital IF samples. 1. A radar system comprising:a receive channel comprising a complex baseband;a processor coupled to the receive channel to receive a first plurality of digital intermediate frequency (IF) samples from an in-band (I) channel of the complex baseband and a corresponding second plurality of digital IF samples from a quadrature (Q) channel of the complex baseband, wherein the processor is configured to execute instructions to compute at least one failure metric based on the first plurality of digital IF samples and the second plurality of digital IF samples.2. The radar system of claim 1 , wherein the at least one failure metric is computed as a ratio of energy in the first plurality of digital IF samples and the second plurality of digital IF samples.3. The radar system of claim 1 , wherein the at least one failure metric is computed as a measure of cross-correlation between the first plurality of digital IF samples and the second plurality of digital IF samples.4. The radar system of claim 1 , wherein the at least one failure metric is computed by checking for signal content in an image band in excess of thermal noise.5. The radar system of claim 4 , wherein signal content in the image band in excess of thermal noise is detected by comparing negative bins of a complex Fast Fourier Transform of I+jQ sample data.6. The radar system of claim 4 , wherein the at least one failure metric is computed by checking ...

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Номер записи: 90
08-02-2018 дата публикации

Following-start control apparatus

Номер: US20180038952A1
Автор: Takafumi SHOKONJI
Принадлежит: Subaru Corp

A following-start control apparatus includes a following-start controller that causes an own vehicle to so start as to follow a preceding vehicle, when start of the preceding vehicle is detected by a preceding vehicle start detector. The following-start controller includes a road surface gradient information setter that sets an estimated gradient of a road surface, on a basis of traveling environment information obtained by a traveling environment information obtaining unit, a first delay time setter that sets, on a basis of the estimated gradient, a first delay time that is set to be longer for a downward slope and set to be shorter for an upward slope as the estimated gradient becomes greater, and a delayed start controller that sets, as a delay time, a time upon so starting the own vehicle as to follow the preceding vehicle, on a basis of the first delay time.

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Номер записи: 91
24-02-2022 дата публикации

METHODS AND SYSTEMS FOR TESTING AUTOMOTIVE RADAR USING RADAR DATA CUBE EMULATOR

Номер: US20220057485A1
Автор: Chi Mei-Li, HUANG Davy
Принадлежит:

Methods and systems for generating and utilizing an emulated radar data cube are disclosed. An emulated radar transmission waveform is defined based on expected radar performance. A virtual real world scenario comprising one or more virtual target objects is constructed. The virtual target objects emulate reflection and scattering properties to an input radar wave of real world objects. Operations of radar transmit and receive channels including an antenna array and free space propagation are emulated to obtain emulated raw radar data. Data processing is performed on the emulated raw radar data to build an emulated radar data cube. The emulated radar data cube is utilized to test a radar perception algorithm. 1. A computer-implemented method , comprising:defining an emulated radar transmission waveform based on expected radar performance;constructing a virtual real world scenario comprising one or more virtual target objects, the virtual target objects emulating reflection and scattering properties to an input radar wave of real world objects;emulating operations of radar transmit and receive channels including an antenna array and free space propagation to obtain emulated raw radar data;performing data processing on the emulated raw radar data to build an emulated radar data cube; andutilizing the emulated radar data cube to test at least one of: a radar perception algorithm, or radar integration in an automated driving system.2. The method of claim 1 , wherein the expected radar performance comprises one or more of: a maximum range claim 1 , a range resolution claim 1 , or an angle resolution.3. The method of claim 1 , wherein the virtual target objects comprise one or more of: a virtual building claim 1 , a virtual motor vehicle claim 1 , a virtual cyclist claim 1 , or a virtual pedestrian.4. The method of claim 1 , wherein performing data processing on the emulated raw radar data comprises performing a three-dimensional fast Fourier transform (FFT) on the ...

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Номер записи: 92
24-02-2022 дата публикации

LIDAR DETECTION DEVICE PROVIDED WITH A RELEASABLE PROTECTIVE LAYER

Номер: US20220057495A1
Автор: DACQUIN Romain, GILLON Xavier, Lucca Nerio, REA Giovanni, SARTENAER Yannick
Принадлежит: AGC Glass Europe

A Light Detection and Ranging (LiDAR) detection device with a releasable protective layer including a solid-state LiDAR device enclosed in a housing provided with a transparent wall portion made of glass or polymer. A releasable protective layer covers the outer surface of the transparent wall portion, such that the releasable protective layer protects the transparent wall portion from multiple impacts by gravel as defined in SAE J400, the releasable protective layer has a mean transmittance of at least 90%, preferable at least 95% to an IR-radiation in the wavelength range from 750 to 1650 nm, and the transparent wall portion covered with the releasable protective layer has a mean transmittance of at least 85%, preferably at least 90%, more preferably at least 92% to IR-radiation. 2: The detection device according to claim 1 , wherein the releasable protective layer is selected from the group consisting of claim 1 ,a glass sheet of thickness of equal or below to 5 mm, with said glass sheet being adhered to the transparent wall portion,a polymer sheet of thickness of 1000 μm or less, with said polymer sheet being adhered to the transparent wall portion, anda coated layer applied onto the outer surface of the transparent wall portion by dip-coating, spraying, or sputtering, and which can be removed with a solvent, or by a heat treatment.3: The detection device according to claim 1 , wherein the releasable protective layer is selected from the group consisting of claim 1 ,a glass sheet of thickness not more than 1 mm, with said glass sheet being adhered to the transparent wall portion,a polymer sheet of thickness not more than 500 μm, with said polymer sheet being adhered to the transparent wall portion, anda coated layer applied onto the outer surface of the transparent wall portion by dip-coating, spraying, or sputtering, and which can be removed with a solvent, or by a heat treatment.4: The detection device according to claim 1 , whereinthe releasable protective ...

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Номер записи: 93
24-02-2022 дата публикации

Sensor apparatus with cleaning

Номер: US20220057509A1
Автор: Andre Sykula, Inderpal Singh, James Pizzimenti, Michael Robertson, Jr., William Ethan-Alexander McClure
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A sensor apparatus includes a base, a nozzle positioned in the base and rotatable relative to the base, an extension arm elongated from a first portion to a second portion, and a fluid source fluidly connected to the nozzle. The first portion is fixed to the nozzle, and the second portion is spaced from the nozzle. Pressurizing the fluid source applies force to the second portion of the extension arm.

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Номер записи: 94
07-02-2019 дата публикации

SYSTEM AND METHOD FOR INTERFERENCE DETECTION IN A RF RECEIVER

Номер: US20190041492A1
Автор: Paradie Michael
Принадлежит: Veoneer US, Inc.

An interference detection methods and receivers for receiving an RF signal including a desired RF signal and an intermittent interference signal, estimating thermal noise of the receiver by statistically analyzing a plurality of time intervals of data of the received RF signal, including at least one data interval not including the interferer, estimating an intermittent-interference-plus-noise level by statistically analyzing an extended time interval of the data, determining an interference metric based on a ratio of the estimates, and evaluating the interference metric against one or more thresholds to detect the presence or absence of degrading RF interference. The statistical analysis may include application of order statistic filtering. 1. A method of detecting RF interference , comprising the steps of:receiving an RF signal detected at a receiver, the received RF signal including a desired RF signal and potentially an intermittent interference signal occupying an interference bandwidth;estimating thermal noise of the receiver by statistically analyzing a plurality of time intervals of data of the received RF signal, including at least one data interval not including the intermittent interference signal;estimating an intermittent-interference-plus-noise level by statistically analyzing an extended time interval of the data;determining an interference metric based on a ratio of the estimated intermittent-interference-plus-noise level to the estimated thermal noise; andevaluating the interference metric against one or more thresholds to detect the presence or absence of degrading RF interference.2. The method of claim 1 , wherein statistically analyzing comprises application of order statistic filtering.3. The method of claim 1 , wherein: obtaining a frequency domain representation of the plurality of time intervals, the frequency domain representation including a magnitude level for each of a plurality of frequencies sorted in an order statistic distribution,', ...

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Номер записи: 95
07-02-2019 дата публикации

DISTRIBUTED RADAR SENSOR SYSTEM

Номер: US20190041494A1
Автор: Bichl Markus, NUGRAHA Dian Tresna, Roger Andre, YGNACE Romain
Принадлежит:

A radar sensor is described herein. In accordance with one example embodiment the radar sensor includes a transmitter for transmitting an RF signal and a receiver configured to receive a respective back-scattered signal from at least one radar target and to provide a corresponding digital radar signal. The radar sensor further includes a processor configured to convert the digital radar signal into the frequency do-main thus providing respective frequency domain data and to compress the frequency domain data. A communication interface is configured to transmit the compressed frequency domain data via a communication link operably coupled to the communication interface. Furthermore, respective and related radar methods and systems are described. 1. A system comprising:at least one radar sensor comprising a transmitter configured to transmit a radio frequency (RF) signal and a receiver configured to receive a respective back-scattered signal from at least one radar target and to provide a corresponding digital radar signal; anda central radar signal processing unit connected to the at least one radar sensor via a communication link;wherein the at least one radar sensor comprises a processor configured to convert the digital radar signal into a frequency domain thus providing respective frequency domain data, and to compress the frequency domain data to form compressed frequency domain data, andwherein the central radar signal processing unit is configured to receive the compressed frequency domain data via the communication link, to decompress the compressed frequency domain data to form decompressed frequency domain data, and to detect the at least one radar target based on the decompressed frequency domain data.2. The system of claim 1 ,wherein the frequency domain data and/or the decompressed frequency domain data comprises at least one of Range Maps or Range-Doppler Maps.3. The system of claim 1 ,wherein, to compress the frequency domain data, the processor is ...

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Номер записи: 96
07-02-2019 дата публикации

High speed radar test system processing and logic

Номер: US20190041496A1
Автор: Edward J. MacMullen, Howard Salvesen, Jerome Lomurno, Joseph Mazzochette
Принадлежит: EASTERN OPTX Inc

A radar test computing system includes a host interface coupled to a programmable input/output (I/O) controller, which is to interface with propagation path replicator (PPR) circuitry. A processing device is to detect a start signal received from the controller; receive an update request from the controller in response to detection, by the PPR circuitry, of a first radio RF pulse on a RF signal received from the radar system; retrieve scenario data of distance to and speed of the moving target for a second RF pulse expected to follow the first RF pulse; calculate, using retrieved scenario data, values of a frequency shift, a signal delay, and a signal attenuation for the second RF pulse; and send, during a time period between the first and second RF pulses, these values to the controller for use by the PPR circuitry to simulate the moving target for the second RF pulse.

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Номер записи: 97
06-02-2020 дата публикации

Mitigating vibration in a radar system on a moving platform

Номер: US20200041610A1
Автор: Igal Bilik, Oren Longman, Shachar SHAYOVITZ, Shahar Villeval
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method of mitigating vibration in a radar system on a moving platform includes obtaining received signals resulting from reflections of transmitted signals by one or more objects in a field of view of the radar system. The received signals are a three-dimensional data cube. The method also includes processing the received signals to obtain a first three-dimensional map and second three-dimensional map, estimating the vibration based on performing a first detection using the second three-dimensional map, and cancelling the vibration from the first three-dimensional map to obtain a corrected first three-dimensional map. A corrected second three-dimensional map is obtained by further processing the corrected first three-dimensional map; and a second detection is performed using the corrected second three-dimensional map.

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Номер записи: 98
06-02-2020 дата публикации

Method for Operating a Radar Sensor in a Motor Vehicle, Radar Sensor, and Motor Vehicle

Номер: US20200041637A1
Автор: KOCH Niels
Принадлежит: Audi AG

The invention relates to a method for operating a radar sensor in a motor vehicle. The radar sensor has at least one antenna arrangement for emitting and receiving radar signals and a processing device for evaluating received radar signals. The antenna arrangement is controlled to simultaneously emit and receive radar signals both in a far frequency range and in a near frequency range, where the bandwidth of the near frequency range is greater than that of the far frequency range. The received radar signals of the near frequency range are evaluated as radar data of a higher distance resolution and received radar signals of the far frequency range are evaluated as radar data of a lower distance resolution. 114.-. (canceled)15. A method for operating a radar sensor in a motor vehicle , wherein the radar sensor comprises an antenna arrangement configured to emit and receive radar signals and a processing device configured to evaluate the received radar signals , the method comprising:controlling the antenna arrangement to simultaneously emit and receive the radar signals both in a far frequency range and a near frequency range, wherein a bandwidth of the near frequency range is greater than a bandwidth of the far frequency range; andevaluating the received radar signals of the near frequency range as radar data of a higher distance resolution and the received radar signals of the far frequency range as radar data of a lower distance resolution,wherein a spatial detection range for the near frequency range partially overlaps a spatial detection range for the far frequency range, andwherein the evaluating the received radar signal further comprises evaluating received radar signals for an overall frequency range that fully encompasses the near frequency range and the far frequency range and is continuous.16. The method according to claim 15 , wherein the evaluating the received radar signals of the near and far frequency ranges comprises using same number of nodes in a ...

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Номер записи: 99
06-02-2020 дата публикации

Vehicular radar assembly

Номер: US20200041641A1
Автор: Andrew Oftedal, Kai Yang, Karen Kocharyan
Принадлежит: Veoneer US LLC

An assembly for a detection system for a vehicle in an environment has a radar sensor positioned around a central boresight axis. The radar sensor includes an RF board with at least one antenna and a support bracket configured to secure the detection system to the vehicle. The support bracket has sloped walls forming a radiation aperture between the RF board and the environment. The sloped walls have distal ends distal to the radar sensor. A plurality of sloped flaps extend from the distal ends and slope inwardly from the distal ends towards the boresight axis to intercept radiation within the radiation aperture.

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Номер записи: 100