Method and Arrangement for the Acquisition of Measurement Data of a Vehicle in a Radar Field

Method and arrangement for the acquisition of measurement data of a vehicle ( 4 ) traveling through a radar field ( 2 ), wherein a reflector ( 7 ) is arranged in the radar field ( 2 ). Direct and indirect reflection signals are received from the vehicle ( 4 ), and direct and indirect measurement data are derived which are suited to be checked for correlation with one another so as to rule out measurement of the vehicle ( 4 ) through bent beam reflection.

IN-VEHICLE RADAR APPARATUS

An in-vehicle radar apparatus includes a transmission and reception means which transmits a radar wave ahead of an own vehicle and receives a reflected wave corresponding to the radar wave from a target; a reception strength detection means which repeatedly detects reception strength of the reflected wave; a distance detection means which repeatedly detects a distance from the own vehicle to the target; an approximate expression calculation means which calculates an approximation expression expressing the reception strength using the distance as a variable from the reception strength repeatedly detected by the reception strength detection means and the distance repeatedly detected by the distance detection means; and a determination means which determines a height of the target from a road surface based on values of coefficients of the approximation expression. 1. An in-vehicle radar apparatus comprising:a transmission and reception means which transmits a radar wave ahead of an own vehicle and receives a reflected wave corresponding to the radar wave from a target;a reception strength detection means which repeatedly detects reception strength of the reflected wave;a distance detection means which repeatedly detects a distance from the own vehicle to the target;an approximate expression calculation means which calculates an approximation expression expressing the reception strength using the distance as a variable from the reception strength repeatedly detected by the reception strength detection means and the distance repeatedly detected by the distance detection means; anda determination means which determines a height of the target from a road surface based on values of coefficients of the approximation expression.2. The in-vehicle radar apparatus according to claim 1 , wherein the approximate expression calculation means calculates the approximation expression by using the reception strength and the distance acquired within a range longer than a change period ...

Peripheral object detection apparatus and peripheral object detection method

A peripheral object detection apparatus that is installed in a vehicle to detect a peripheral object obstructing travel by a vehicle includes: a radar that obtains a reflection intensity by transmitting an electromagnetic wave and receiving an electromagnetic wave reflected by an object; and a determination unit that calculates an integrated value of an amount of variation in the reflection intensity within a predetermined section, obtained by the radar, and determines on the basis of the integrated value whether or not the object is a low object not obstructing travel by the vehicle.

Electromagnetic Reflection Profiles

Methods, systems, and products determine electromagnetic reflective characteristics of ambient environments. A wireless communications device sends a cellular impulse and receives reflections of the cellular impulse. The cellular impulse and the reflections of the cellular impulse may be compared to determine the electromagnetic reflective characteristics of an ambient environment. 1. A method , comprising:receiving, by a server, global positioning system information representing a location associated with a network address associated with a mobile device;querying, by the server, an electronic database for the global positioning system information representing the location, the electronic database having electronic associations that relate different electromagnetic reflection characteristics to global positioning system coordinates representing different locations;determining, by the server, a null entry in the electronic database for the global positioning system information representing the location;sending, by the server, an electronic command to the network address associated with the mobile device, the electronic command instructing the mobile device to send a reflection profile;receiving, by the server, the reflection profile sent from the network address associated with the mobile device; andreplacing, by the server, the null entry in the electronic database with an indication of the reflection profile, the indication having an electronic association with the global positioning system information representing the location.2. The method of claim 1 , further comprising storing a characteristic representing an electromagnetic noise in association with the global positioning system information representing the location.3. The method of claim 1 , further comprising storing a characteristic representing a signal to noise ratio in association with the global positioning system information representing the location.4. The method of claim 1 , further comprising ...

Ultra-Wide Band Radar and Positional Node Integration

A constellation of Ultra-Wide Band (UWB) nodes, each with an UWB transceiver operating both as a monostatic/bi-static Radar, provide precise positional determination of both participating and nonparticipating movable objects. The UWB constellation identifies and locates objects within a geographic area using multipath signal analysis forming an occupancy grid. The resulting occupancy grid can identify parked cars, pedestrians, obstructions, and the like to facilitate autonomous vehicle operations, safety protocols, traffic management, emergency vehicle prioritization, collisions avoidance and the like.

MEASUREMENT ACCURACY CLASSIFIER FOR HIGH-RESOLUTION RANGING

A system is provided with a ranging transmitter and receiver pair or a transceiver pair. The system classifies a group of radio frequency (RF) channels between ranging transmitter and receiver pairs. In a first scenario, a ranging transmitter transmits at least three channels to an active reflecting receiver. A ranging receiver then receives reflected instances of the at least three transmitted channels from the active reflecting receiver. A processor of the system then determines a ranging measurement between the ranging transmitter and the active reflecting receiver based on measured phase changes and received signal strength and assigns a classification to the determined ranging measurement indicating a relative level of accuracy for the determined ranging measurement. The classification may be a general classification, a linearity classification, a multipath classification, or a combination classification that is based on both a linearity classification and a multipath classification. 1. A method of classifying a group of radio frequency (RF) channels between one or more ranging transmitter and receiver pairs , the method comprising:transmitting, by the ranging transmitter, at least three channels to an active reflecting receiver;receiving, by the ranging receiver, reflected instances of the at least three transmitted channels from the active reflecting receiver;determining a ranging measurement between the ranging transmitter and the active reflecting receiver based on measured phase changes and received signal strength; andassigning a classification to the determined ranging measurement indicating a relative level of accuracy for the determined ranging measurement.2. The method of claim 1 , wherein the assigned classification comprises a linearity classification claim 1 , the linearity classification being determined by plotting phase measurements of the reflected instances of the at least three channels for each frequency of the at least three channels and ...

Electromagnetic Reflection Profiles

Methods, systems, and products determine electromagnetic reflective characteristics of ambient environments. A wireless communications device sends a cellular impulse and receives reflections of the cellular impulse. The cellular impulse and the reflections of the cellular impulse may be compared to determine the electromagnetic reflective characteristics of an ambient environment.

SYSTEMS AND METHODS FOR RFID TAG LOCATING USING CONSTRUCTIVE INTERFERENCE

A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the radio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map constructive interference zones for improved accuracy. 1. A method for locating a radio-frequency identification tag , comprising:analyzing first and second response signals received via a plurality of antennas from the radio-frequency identification tag; andtriangulating a position of the radio-frequency identification tag based upon said analyzing.259-. (canceled) This application claims priority to U.S. Provisional Application No. 62/067,736, entitled “System and Methods for RFID Tag Locating Using Constructive Interference,” filed Oct. 23, 2014. The disclosure of U.S. Provisional Application No. 62/067,736 is herein incorporated by reference in its entirety and for all purposes.This invention relates generally to the wireless communications field, and more specifically to new and useful systems and methods for using constructive interference such as use in radio frequency identification tag (RFID) tag locating.Being able to identify and track objects as they move throughout buildings or other indoor areas with high precision is important for a wide variety of applications. Systems designed to track objects in this way, often called real-time ...

Non-Line-of-Sight Radar-Based Gesture Recognition

This document describes techniques and devices for non-line-of-sight radar-based gesture recognition. Through use of the techniques and devices described herein, users may control their devices through in-the-air gestures, even when those gestures are not within line-of-sight of their device's sensors. Thus, the techniques enable users to control their devices in many situations in which control is desired but conventional techniques do permit effective control, such as to turn the temperature down in a room when the user is obscured from a thermostat's gesture sensor, turn up the volume on a media player when the user is in a different room than the media player, or pause a television program when the user's gesture is obscured by a chair, couch, or other obstruction. 1. A smart device comprising: provide a radar field;', 'sense reflections from an interaction that is within the radar field;', 'recognize, at the smart device associated with the radar field and based on the reflections from the interaction that is within the radar field, a gesture; and', 'determine that the gesture is associated with a non-line-of-sight smart device; and, 'a non-line-of-sight gesture recognition system configured toa transceiver or network interface configured to pass the gesture from the smart device to the non-line-of-sight smart device in a format usable by the non-line-of-site smart device to recognize the gesture and effective to enable the gesture to control the non-line-of-sight smart device or establish communication with the non-line-of-sight smart device.2. The smart device of claim 1 , wherein the non-line-of-sight gesture recognition system is further configured to provide the radar field having a direct radar field and a reflected radar field claim 1 , the reflected radar field provided in one or more volumes in the room to which direct line-of-sight from the non-line-of-sight gesture-recognition system is not available claim 1 , and wherein the interaction is within ...

Method for radio measuring applications

A method for radio measuring applications, wherein at least a first radio node operates as an initiator and at least a second radio node as a transponder, in a first step a first carrier frequency is transmitted by the initiator as an initial signal and received by the transponder. In a second step a response signal with a second carrier frequency is transmitted by the transponder and received by the initiator, during a measurement cycle at least one step sequence of the first and the second step is performed. First the first steps of all sequence of steps and subsequently at least a portion of the second steps of the step sequences are performed in succession, the first carrier frequency assumes a value within a predetermined frequency domain for each repetition, and the initial signals and the response signals are mutually coherent at least within the measurement cycle.

A method and system for detection of a target by a passive radar system exploiting multichannel-per-carrier illuminator sources

A method and system for detection of a target by a passive radar system exploiting multichannel-per-carrier cellular illuminator sources, the method including: receiving a reference signal from a reference source, said reference signal being received at a reference element of a radar receiver of the passive radar system; receiving, at a surveillance element of said radar receiver, a reflected signal originating from said reference source and reflected off the target, said reflected signal including interference; deciphering components of said signals; and reconstructing said signals, from said components, excluding said interference.

PASSIVE RADAR WITH ANALOGUE CANCELLATION OF THE STATIC COMPONENT

A passive radar comprises a reception antenna for a signal transmitted by a non-cooperative transmitter, the received signal comprising a static contribution related to propagation of the signal transmitted through a multi-path propagation channel and a dynamic contribution related to propagation of echoes of the transmitted signal from a moving target. The passive radar also comprises a reception chain that includes an analogue-digital converter capable of outputting a digitised signal, a moving target detection unit, a digitised signal processing unit configured to determine an estimation of the static contribution during a calibration phase of the passive radar, a transmission chain that can output an analogue signal representative of the estimation of the static contribution, and a directional coupler configured to output the signal received during the calibration phase of the passive radar to the reception chain. 1. A passive radar comprising:a reception antenna configured to receive a signal transmitted by a non-cooperative transmitter, the received signal comprising a static contribution related to propagation of the transmitted signal through a multi-path propagation channel and a dynamic contribution related to propagation of echoes of the transmitted signal coming from a moving target,a reception chain that includes a digital-analogue converter configured to output a digitised signal,a moving target detection unit configured to detect the moving target by making use of the digitised signal,wherein the passive radar further comprises:a digitised signal processing unit configured to determine an estimation of the static contribution during a calibration phase of the passive radar,a transmission chain configured to output an analogue signal representative of the estimation of the static contribution, and the received signal during the calibration phase of the passive radar,', 'the received signal from which the analogue signal representative of the estimation ...

System for determining a physical metric such as position

A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).

Electromagnetic Reflection Profiles

Methods, systems, and products determine electromagnetic reflective characteristics of ambient environments. A wireless communications device sends a cellular impulse and receives reflections of the cellular impulse. The cellular impulse and the reflections of the cellular impulse may be compared to determine the electromagnetic reflective characteristics of an ambient environment. 1. A method , comprising:receiving, by a server, a query from a smartphone reporting a location;determining, by the server, an electromagnetic profile that is associated with the location reported by the smartphone; andsending, by the server, the electromagnetic profile to the smartphone in response to the query.2. The method of claim 1 , further comprising retrieving the electromagnetic profile.3. The method of claim 1 , further comprising sending the electromagnetic profile to an address associated with the smartphone.4. The method of claim 1 , further comprising sending the electromagnetic profile to an Internet protocol address associated with the smartphone.5. The method of claim 1 , further comprising transmitting the electromagnetic profile.6. The method of claim 1 , further comprising transmitting the electromagnetic profile to the smartphone.7. The method of claim 1 , further comprising sending the electromagnetic profile to the smartphone via at least one of a cellular network and a wireless local area network.8. A system claim 1 , comprising:a hardware processor; anda memory device, the memory device storing instructions, the instructions when executed causing the hardware processor to perform operations, the operations comprising:receiving a query from a smartphone reporting a location;determining an electromagnetic profile that is associated with the location reported by the smartphone; andsending the electromagnetic profile to the smartphone as a response to the query.9. The system of claim 8 , wherein the operations further comprise retrieving the electromagnetic profile.10 ...

SYSTEMS AND METHODS FOR ULTRASONIC VELOCITY AND ACCELERATION DETECTION

The present disclosure provides systems and methods associated with determining velocity and/or acceleration information using ultrasound. A system may include one or more ultrasonic transmitters and/or receivers. An ultrasonic transmitter may be configured to transmit ultrasound into a region bounded by one or more surfaces. The ultrasonic receiver may detect a Doppler shift of reflected ultrasound to determine an acceleration and/or velocity associated with an object. The velocity and/or acceleration information may be utilized to modify the state of a gaming system, entertainment system, infotainment system, and/or other device. The velocity and/or acceleration date may be used in combination with a mapping or positioning system that generates positional data associated with the objects. 1252-. (canceled)253. A method for determining velocity data of an object within a region , comprising:determining, via a processor, a relative position of an object within a region;transmitting, via an ultrasonic transmitter, ultrasound into the region;receiving, via an ultrasonic receiver, an ultrasonic reflection of the transmitted ultrasound from a site on the object within the region;detecting, via the processor, a shift of the ultrasonic reflection received by the ultrasonic receiver relative to the transmitted ultrasound;calculating, via the processor, a first velocity component associated with the site based on the detected shift of the received ultrasonic reflection; andmodifying, via the processor, a state of an entertainment device based on the relative position of the object and the first velocity component of the site.254. The method of claim 253 , wherein a signal from the entertainment device is used to identify the site on the object at which to calculate the first velocity component.255. The method of claim 253 , wherein a signal from the entertainment device is used to identify a time at which to calculate the first velocity component.256. The method of claim ...

Distance measuring device

From a transmitter (18) and a transmission antenna (10), a first frequency signal of a constant first frequency is transmitted for more than a predetermined time, a second frequency signal of a second frequency different by a certain value from the first frequency is transmitted for more than a predetermined time, and a third frequency signal of a third frequency different from the first frequency by twice the certain value is transmitted for more than a predetermined time. Signals of the transmission frequencies reflected from measurement objects are fed to a receiving antenna (11), a mixer (12), an analog circuit section (13), an A/D converter (14), an FFT (15), and a signal processing section (16). The Doppler frequencies of the reflected waves are determined, and the objects are separately detected for every Doppler frequency. Based on the information on the phase and amplitude of the received signal of each transmission frequency, the objects of the same Doppler frequency are separated and identified. In such a way, even when measurement objects moving at substantially the same relative speed are present, they can be separately detected.

Method for representation of environment information of vehicle, involves evaluating radar echo signals as radar data, where radar echo signals are transferred from direct signal path between radar device and reflected objects

The method involves evaluating the radar echo signals as radar data, where the radar echo signals are transferred from a direct signal path between a radar device (R) and reflected objects (O1-O4) located in the environment. The radar echo signals are transferred from an indirect signal path with deflection at a road surface between the radar device and the reflected objects. An assignment- and movement map of the environment is generated from the radar data, where the map comprises object positions and object movements.

Determine altitude information of objects in the environment of a vehicle

Die Erfindung betrifft ein Verfahren zum Bestimmen von Höheninformationen von Objekten in der Umgebung eines Fahrzeugs mittels einer Radarvorrichtung des Fahrzeugs, aufweisend die Schritte: Senden von Radarwellen in die Umgebung des Fahrzeugs zu einem ersten Zeitpunkt und einem hierauf folgenden zweiten Zeitpunkt, Empfangen der an Objekten reflektierten Radarwellen mit einer Radareinheit zum ersten Zeitpunkt und zum zweiten Zeitpunkt; wobei das Senden und Empfangen von Radarwellen an einem ersten Ort und einem davon verschiedenen zweiten Ort erfolgt, Ermitteln der Höheninformationen von Objekten in Fahrtrichtung des Fahrzeugs basierend auf den empfangenen Radarwellen zum ersten Zeitpunkt und zum zweiten Zeitpunkt. The invention relates to a method for determining altitude information of objects in the surroundings of a vehicle by means of a radar device of the vehicle, comprising the steps of: transmitting radar waves into the surroundings of the vehicle at a first time and a subsequent second time, receiving the objects reflected on objects Radar waves having a radar unit at the first time and at the second time; wherein transmitting and receiving radar waves occurs at a first location and a different second location, determining the height information of objects in the direction of travel of the vehicle based on the received radar waves at the first time and at the second time.

In-vehicle radar system

Method for processing radar signals

The invention relates to a method for a radar device arranged above a reflecting surface, whereby the height of an object above said surface can be estimated. The inventive method is implemented without the need for improved angle resolution and is solely based on signal processing. The invention takes advantage of an interference pattern which occurs in the radiation field of the radar antenna and which is generally considered as a drawback. The intensity modulation of a received signal coming from an object inside the monitoring area which is displaced in relation to the radar device is evaluated and considered in conjunction with the measured object distance in order to estimate a value corresponding to the height of the object above the travel path.

In-vehicle radar system

Peripheral object detection apparatus and peripheral object detection method

一种安装在车辆中用于检测阻碍车辆行驶的周边物体的周边物体检测设备，其包括：电波探测器，所述电波探测器通过发射电磁波和接收由物体反射的电磁波来获得反射强度；和判定单元，所述判定单元计算由电波探测器获得的预定区间内的反射强度的变化量的累计值，并根据所述累计值判定物体是否为不阻碍车辆行驶的下部物体。

FM-CW radar on-road stationary object detection method

Method for radio measurement applications

一种用于无线电测量应用的方法，其中，至少两个无线电节点在发送模式中工作一次并且在接收模式中工作至少一次并且构成单元，至少一个无线电节点作为额外无线电节点仅在接收模式或发送模式中工作，每个无线电节点具有定时器和一个另外的数据接口，为了开启测量周期，具有第一载波频率的初始信号由无线电节点之一发送，并由单元的至少一个无线电节点接收，在测量周期期间，单元的至少一个无线电节点发送具有另一载波频率的响应信号并且该响应信号由单元的至少一个无线电节点接收，其中，该额外无线电节点发送或接收至少一个信号，该方法要么在第一模式中工作要么在第二模式中工作，其中，在第一模式中，每个响应信号由所接收的初始信号或响应信号形成，在第二模式中，每个响应信号独立于每个接收信号地形成。

Radar sensor with frontal and lateral emission

다수의 송신 안테나를 사용하여 송신 신호를 송출하는 송신장치, 다수의 수신 안테나를 사용하여 대상에서 반사되는 송신 신호를 수신하는 수신 장치, 및 수신한 신호를 처리하는 신호처리장치가 장착된 주변 인식용 레이더센서에 있어서, 평평한 보드의 앞면 또는 뒷면에 하나 이상의 개별 유닛(이하 기본 다이폴)이 구비되는 다수의 송신 안테나 및 다수의 수신 안테나가 존재하고, 상기 평평한 보드에 배치된 하나 이상의 기본 다이폴로서 상기 다이폴의 광선 원뿔 중심이 상기 레이더센서의 외부에서 수직에 대해 45°이하로 기울어져 상기 보드에 위치하는 기본 다이폴이 구비된 적어도 하나의 송신 안테나 및 하나의 수신 안테나가 존재하고, 그리고 상기 평평한 보드에 배치된 하나 이상의 기본 다이폴로서 상기 다이폴의 광선 원뿔 중심이 상기 레이더센서의 외부에서 수직에 대해 45° 이상으로 기울어져 상기 보드에 위치하는 기본 다이폴이 구비된 적어도 하나의 송신 안테나 및 하나의 수신 안테나가 존재하는 것을 특징으로 한다. A transmission apparatus for transmitting a transmission signal using a plurality of transmission antennas, a reception apparatus for receiving a transmission signal reflected by a target using a plurality of reception antennas, and a peripheral recognition apparatus equipped with a signal processing apparatus for processing the received signal There is provided a radar sensor including a plurality of transmission antennas and a plurality of reception antennas each having at least one individual unit (hereinafter, referred to as a basic dipole) on a front surface or a rear surface of a flat board, and, as one or more basic dipoles disposed on the flat board, There is at least one transmit antenna and one receive antenna with a basic dipole located at the board, with the center of the cone of the light beam being tilted at an angle of 45 degrees or less with respect to the vertical from the outside of the radar sensor, Wherein the center of the light beam cone of the dipole Becomes more tilted over 45 ° to the vertical outside of the sensor is characterized in that the primary dipole is at least one transmission antenna and one receive antenna having present which is located in the board.

METHOD FOR MEASURING THE HEIGHT OF A TARGET IN RELATION TO THE GROUND BY A MOVING RADAR, AND RADAR IMPLEMENTING SUCH A METHOD

Le radar (2) étant équipé d'un réseau antennaire d'émission et d'un réseau antennaire de réception, la mesure de ladite hauteur h2 est obtenue par l'estimation de la fréquence d'au moins une modulation d'amplitude fonction du temps produite sur ledit réseau antennaire de réception, ladite modulation étant générée par l'interférence des signaux reçus directement (4) de ladite cible et des signaux reçus après réflexion (5) sur le sol, à partir des signaux émis par ledit réseau antennaire d'émission. The radar (2) being equipped with an antenna transmission network and an antenna reception network, the measurement of said height h2 is obtained by estimating the frequency of at least one amplitude modulation depending on the time produced on said antenna reception network, said modulation being generated by the interference of signals received directly (4) from said target and signals received after reflection (5) on the ground, from signals transmitted by said antenna network d 'program.

Method and apparatus for estimating indoor position based RF

본 발명은 RF 기반의 실내 위치 추정 방법 및 장치에 관한 것으로서, 장애물이 존재하는 비가시선(Non Line of Sight, NLOS) 환경의 실내에서 장애물 속성에 따른 신호세기 정보를 기반으로 생성한 실내 환경에서의 신호감쇠모델과 거리에 따른 RF신호의 신호전달소요시간의 관계정보를 활용하여, 실내 이동 객체의 위치를 파악하도록 한다. 본 발명에 따르면, 반사나 회절로 인해 다중 경로가 발생하는 NLOS 환경요소를 고려하기 위하여 실내의 장애물 속성에 따른 수신신호세기 기반의 신호감쇠모델과 왕복전달시간 기반 거리측정모델을 활용한 위치 추정 기법을 적용함으로써, 실내 환경에서 이동하는 노드의 위치를 보다 정밀하게 추정할 수 있는 이점이 있다.

METHOD FOR MEASURING THE HEIGHT OF A TARGET IN RELATION TO THE GROUND BY A MOVING RADAR, AND RADAR IMPLEMENTING SUCH A METHOD

Le radar (2) étant équipé d'un réseau antennaire d'émission et d'un réseau antennaire de réception, la mesure de ladite hauteur h2 est obtenue par l'estimation de la fréquence d'au moins une modulation d'amplitude fonction du temps produite sur ledit réseau antennaire de réception, ladite modulation étant générée par l'interférence des signaux reçus directement (4) de ladite cible et des signaux reçus après réflexion (5) sur le sol, à partir des signaux émis par ledit réseau antennaire d'émission.

Using MIMO training fields for motion detection

在一般方面，PHY帧的各种字段被用于运动检测。在一些方面，在无线通信网络中的无线通信装置之间发送的各个无线信号的PHY帧中识别第一训练字段和不同的第二训练字段。针对各个无线信号生成第一时域信道估计和第二时域信道估计。第一时域信道估计基于第一训练字段中所包括的第一频域信号，而第二时域信道估计基于第二训练字段中所包括的第二频域信号。基于第一时域信道估计来确定在一时间段期间在空间中是否已经发生运动，并且基于第二时域信道估计来确定空间的运动的位置。

System and method for illumination and imaging of an object

Die Erfindung betrifft ein System zur Ausleuchtung und Abbildung von Objekten mithilfe elektromagnetischer Strahlung, bspw. Millimeterstrahlung. Ein derartiges System (100) umfasst mindestens eine Sendeantenne (120), mindestens eine Empfangsantenne (120), sowie mindestens ein Reflektorelement (114). Auf dem Reflektorelement (114) liegt eine polarisationswirksame Materialschicht (118) vor. Eine Verarbeitungseinheit (110) bestimmt eine Abbildung des Objekts basierend auf der von der Empfangsantenne (120) empfangenen Strahlung.

DEVICE FOR DETECTING A DESTINATION IN THE ENVIRONMENT OF A VEHICLE

Es wird eine fahrzeugeigene Zielerfassungsvorrichtung (1) bereitgestellt. Die Vorrichtung weist einen Radarmessabschnitt (10, 12, 14, 16, 20-25) und eine Verarbeitungseinheit (26), die Information vom Radarmessabschnitt verarbeitet, auf. Die Verarbeitungseinheit erfasst ein Ziel, das in der Umgebung des Fahrzeugs vorhanden ist, auf der Grundlage von Erfassungsergebnissen vom Radarmessabschnitt und bestimmt einen Tiefenbestimmungswert, der die Tiefe des erfassten Zieles anzeigt. Die Verarbeitungseinheit vergleicht den Tiefenbestimmungswert und einen im Voraus bestimmten Schwellenwert und bestimmt, dass das Ziel ein tief liegendes Ziel ist, das vom Fahrzeug überwindbar ist, wenn der Tiefenbestimmungswert als unter dem Schwellenwert liegend bestimmt wird.

Peripheral object detection apparatus and peripheral object detection method

Target information estimation device

Method for radar-based determination of a height of an object

Die Erfindung betrifft ein Verfahren zur radarbasierten Bestimmung einer Höhe (ht) eines Objekts (O) in einer Fahrzeugumgebung, wobei die Fahrzeugumgebung mittels zumindest eines an einem Fahrzeug (1) angeordneten Radarsensors (2) erfasst wird. Erfindungsgemäß wird bei der Ermittlung der Höhe (ht) des Objekts (O) eine Mehrwegausbreitung von Radarstrahlen des Radarsensors (2) berücksichtigt, wobei eine hochauflösende Spektralanalyse durchgeführt wird und wobei ein hochauflösendes Verfahren zur Bestimmung eines Wegunterschieds (Δr) bei Mehrwegausbreitung anhand eines Leistungsdichtespektrums verwendet wird. The invention relates to a method for radar-based determination of a height (ht) of an object (O) in a vehicle environment, wherein the vehicle surroundings are detected by means of at least one radar sensor (2) arranged on a vehicle (1). According to the invention, multipath propagation of radar beams of the radar sensor (2) is considered in the determination of the height (ht) of the object (O), wherein a high-resolution spectral analysis is performed and a high-resolution method for determining a path difference (Δr) in multipath propagation using a power density spectrum is used becomes.

Method and Apparatus For Discriminating With Respect to Low Elevation Target Objects

The invention concerns a method and apparatus for estimating a height of a target object using radar signals reflected from the target object wherein a receiver detects a plurality of radar signals reflected from the target object, respectively, at a plurality of different ranges, resolves the amplitudes of the plurality of reflected signals at the respective plurality of different ranges to generate an amplitude data set, and determining if the amplitude data set correlates to a particular height.

Method for locating electromagnetic pulse emission sources in an environment including reflectors

Method for radio measurement applications

一种用于无线电测量应用的方法，其中，第一无线电节点作为启动器工作并且第二无线电节点作为应答器工作，每个无线电节点具有自己的定时器和数据接口，在第一步骤中，由启动器发送第一载波频率作为初始信号并且由应答器在第一接收时间段期间接收所述初始信号，在第二步骤中由应答器以第二载波频率发送响应信号并且由启动器在第二接收时间段期间接收响应信号，初始信号和响应信号至少在每个步骤序列期间是相干的，初始信号的载波频率在每次重复时在预先确定的频率范围内改变并且该方法包括第一模式和第二模式，其中，在第一模式中响应信号至少由所接收的初始信号的一部分形成，并且传递函数根据所接收的响应信号的至少一部分求取，并且在第二模式中与所接收的初始信号无关地形成响应信号，并且根据所接收的响应信号的一部分和所接收的以及所传递的初始信号的一部分来求取传递函数。

Monitoring changes in an environment by means of communication devices

Monitoring changes in an environment 202 utilises one or more communication devices 120 (mobile phones) within the environment. Each communication device receives a wireless signal transmitted from a source 140 (base station) and equalises the channels so that transmission by each channel is the same. A central computing device 130, 132 receives channel equalisation information (adaptive filter coefficients, trellis path obtained from minimum entropy trellis decoding) and location from each communication device. The central computer generates estimates of the environment using a neural network, which are recorded to determine changes in the environment over time. A model of the environment may be used. Data relating to a known state of the environment may be stored. The adaptive filter can band-pass filter, perform time recovery to extract data frame timing which identifies information and reference signals, and use the reference signal to train the filter to suppress channel noise / bit error rate.

Method for attaching radar for vehicle, radar for vehicle, and monitoring method

An attachment method attaches a bracket to a vehicle, and attaches a radar to the bracket so that an axis of a directivity pattern of an antenna directs upward with respect to a horizontal direction. The antenna of the radar has an asymmetric vertical directivity pattern with respect to the axis of the directivity pattern.

Identification of reconfigurable intelligent surface

The present disclosure provides a reconfigurable intelligent surface (RIS), a wireless device, and methods for identifying radio signals therefrom. A method at a RIS for facilitating a first wireless device in identifying radio signals from the RIS comprises: receiving, from a second wireless device, a sequence of radio signals; adjusting the received sequence of radio signals in the analog domain to enable the first wireless device to determine that the adjusted sequence of radio signals comes from the RIS; and transmitting, to the first wireless device, the adjusted sequence of radio signals.

Method for object classification using polarimetric radar data and device suitable therefor

The invention relates to a method for object classification which comprises the following steps for providing an elliptically or circularly polarized transmission signal which is transmitted to the object to be classified: generating a first radar image from the copolarly polarized reflection signal and generating a second radar image from the cross-polarized reflection signal and comparing the first radar image with the second radar image.

Radar system with elevation measuring capability

Motor vehicle radar system comprising horizontal and vertical resolution

The invention relates to a motor vehicle radar system (12) comprising at least two antenna structures (14, 16), which are located at a predetermined distance (d) from one another in a first spatial direction (y) and each of which has an alignment characteristic (18, 20; 40, 42; 50, 52) comprising a component (24, 22) that points in a second spatial direction (x). The radar system (12) is characterised in that at least two of the alignment characteristics (18, 20; 40, 42; 50, 52) differ from one another in a third spatial direction (z) and that said third spatial direction (z) does not lie on the planes occupied by the first spatial direction (y) and the second spatial direction (x). The invention also relates to an operating method of a motor vehicle radar system (12) of this type.

Radar apparatus and altitude calculation method

Localization method and system, location-server, equipment of the core network, base station

本申请公开了一种定位方法及系统、定位服务器、核心网设备、基站，包括：定位服务器接收应用对指定的终端的定位请求；定位服务器对定位请求进行鉴权，如果鉴权通过，将定位请求转发至核心网设备，以使核心网设备启动对所述终端的辅助定位测量；定位服务器根据核心网设备返回的定位测量结果计算终端的位置，将计算结果返回至所述应用。本申请通过鉴权提高了系统的安全性，通过核心网设备对终端进行辅助定位测量，实现简单，降低了定位系统的成本，实现了对终端的快速定位。

Systems and methods for RFID tag locating using constructive interference

A system and method for locating radio-frequency identification tags within a predetermined area. The method can incorporate sub-threshold superposition response mapping techniques, alone, or in combination with other methods for locating radio-frequency identification tags such as but not limited to time differential on arrival (TDOA), frequency domain phase difference on arrival (FD-PDOA), and radio signal strength indication (RSSI). The system can include a plurality of antennas dispersed in a predefined area; one or more radio-frequency identification tags; a radio-frequency transceiver in communication with said antennas; a phase modulator coupled to the radio-frequency transceiver; and a system controller in communication with said transceiver and said phase modulator. Calibration techniques can be employed to map constructive interference zones for improved accuracy.

Multi-human-body target recognition and counting method based on millimeter waves

本发明提供了一种基于毫米波的多人体目标识别及计数方法，包括：采用毫米波传感设备向监测空间内发射毫米波，并实时接收反射的毫米波传感信号，包括初始毫米波信号和待识别毫米波信号；对接收的毫米波传感信号进行预处理，根据预处理后的初始毫米波信号构建空间环境静物模型；从预处理后的待识别毫米波信号中过滤筛选动态人体毫米波传感信号，并基于动态人体毫米波传感信号和空间环境静物模型数据确定动态人体数量；根据动态人体毫米波传感信号分析实时物理值并采用神经网络识别分析动态人体的空间位置；将动态人体的计数信息和空间位置信息实时发送到监测服务器或用户端。提高了动态人体的识别效率、空间位置识别准确率和计数准确性。

Measurement accuracy classifier for high-resolution ranging

A system is provided with a ranging transmitter and receiver pair or a transceiver pair. The system classifies a group of radio frequency (RF) channels between ranging transmitter and receiver pairs. In a first scenario, a ranging transmitter transmits at least three channels to an active reflecting receiver. A ranging receiver then receives reflected instances of the at least three transmitted channels from the active reflecting receiver. A processor of the system then determines a ranging measurement between the ranging transmitter and the active reflecting receiver based on measured phase changes and received signal strength and assigns a classification to the determined ranging measurement indicating a relative level of accuracy for the determined ranging measurement. The classification may be a general classification, a linearity classification, a multipath classification, or a combination classification that is based on both a linearity classification and a multipath classification.

Apparatus and method for detecting target using radar

본 발명의 일 양상에 따르는 레이더를 이용한 타겟 검출 장치는 복수의 송신 및 수신 안테나를 포함하는 다채널 레이더인 제1 레이더와 제2 레이더를 이격하여 설치하여 제1 레이더로부터 획득한 타겟의 제1 위치 정보와 제1 속도 정보와 제2 레이더로부터 획득한 타겟의 제2 위치 정보와 제2 속도 정보로부터 타겟의 위치 정보 와 타겟의 속도 벡터 정보를 구한 후 이를 이용하여 타겟을 검출하고 추적한다.

Automotive radio wave radar and signal processing

In an automotive radio wave radar, a center frequency of a transmitted wave is shifted at a certain cycle, and position information of an obstacle detected at three or more center frequencies is subjected to decision by majority to determine whether detection results of the obstacle are erroneous with the occurrence of jamming. If any of the detection results is determined to be abnormal, the abnormal result is discarded. An automotive radio wave radar is realized which can correctly perform the obstacle detection even in the event of jamming without causing erroneous obstacle detection or omission of the detection.

Radar system comprising overlapping transmitter and receiver antennae

Radar system comprising overlapping transmitter and receiver antennae

The invention relates to a radar system for recording the environment of a motor vehicle, comprising: transmission means for emitting transmission signals using one or more transmitter antennae; receiving means for receiving transmission signals reflected by objects using one or more receiver antennae and signal processing means for processing the received signals. The system is characterised in that: it is equipped with transmitter and receiver antennae that are planar and are situated on a level surface; said transmitter and receiver antennae have at least approximately the same emission characteristics and the emission characteristics of the transmitter antennae can be different from those of the receiver antennae; received signals are acquired from different combinations of the transmitter and receiver antennae; in the signal processing means, the angular position in a spatial direction R is estimated for objects from said received signals, using the fact that the received signals from an individual object have different phase positions in relation to one another depending on the angular position of said object in the spatial direction R; and at least two of said transmitter and receiver antennae overlap with regard to the spatial direction R without being identical, said overlap being obtained by at least one of the following arrangements or configurations of the transmitter and receiver antennae: a) the antennae are offset in relation to one another with regard to the spatial direction S that runs perpendicular to the spatial direction R, in particular the transmitter antennae are positioned above the receiver antennae for a horizontal spatial direction R; b) the transmitter and/or the receiver antenna(e) has or have an oblique arrangement with regard to the spatial direction R; c) the antennae are interleaved with regard to the spatial direction R; d) the use of emitting or receiving elements is common to at least two transmitter or receiver antennae.

Detection and localization of non-line-of-sight objects using multipath radar reflections and map data

This document describes techniques and systems to detect and localize NLOS objects using multipath radar reflections and map data. In some examples, a processor of radar system can identify a detection of an object using reflected EM energy and determine, using map data, whether a direct-path reflection associated with the detection is within a roadway. In response to determining that the direct-path reflection is not located within the roadway, the processor can determine whether a multipath reflection (e.g., a multipath range and multipath angle) associated with the detection is viable. In response to determining that the multipath reflection is viable, the processor can determine that the detection corresponds to an NLOS object. The processor can also provide the NLOS object as an input to an autonomous or semi-autonomous driving system of the vehicle, thereby improving the safety of such systems.

Radar System Comprising Overlapping Transmitter and Receiver Antennas

The invention relates to a radar system for recording the environment of a motor vehicle, comprising: transmission means for emitting transmission signals using at least two transmission antennas; receiving means for receiving transmission signals reflected by objects using one or more receiver antennas; and signal processing means for processing the received signals, characterized in that it is equipped with transmitter and receiver antennas that are planar and are situated on a level surface, said transmitter and receiver antennas have at least approximately the same emission characteristic, wherein the emission characteristic of the transmitter antennas can be different to that of the receiver antennas, received signals are acquired from different combinations of the transmitter and receiver antennas, in the signal processing means, the angular position in a spatial direction R is estimated for objects from said received signals, using the fact that the received signals from an individual object have different phase positions in relation to one another depending on the angular position of said object in the spatial direction R, and and at least two of said transmitter and receiver antennas overlap with regard to the spatial direction R without being identical, said overlap being obtained by at least one of the following arrangements or configurations of the transmitter and receiver antennas: a) the antennas are offset in relation to one another with regard to the spatial direction S that runs perpendicular to the spatial direction R, in particular the transmitter antennas are positioned above the receiver antennas for a horizontal spatial direction R; b) the transmitter and/or the receiver antenna(e) has or have an oblique arrangement with regard to the spatial direction R; c) the antennas are interleaved with regard to the spatial direction R; d) the use of emitting or receiving elements is common to at least two transmitter or receiver antennas.

Accurate localization of an object by a network device

Examples provide accurate localization of an object by using a network device. Examples include determining distances between transmitter and receiver antennas of a network device, transmitting, by the transmitter antenna, a wireless signal having a transmit power, receiving, by the receiver antennas, a reflected signal that reflects off of an object, receiving, by the receiver antennas, a static signal that does not reflect off of the object, and processing the static and reflected signals and determining the location of the object, based on the distances between the transmitter and the receiver antennas and the transmit power.

Additional feedback for location detection of device-free objects using wireless communication signals

Disclosed are techniques for wireless sensing. In an aspect, a user equipment measures at least a line-of-sight path and a non-line-of-sight path of a first downlink positioning reference signal (DL-PRS) from a first transmission-reception point, measures at least an LOS path and an NLOS path of a second DL-PRS from a second TRP, measures at least an LOS path and an NLOS path of a third DL-PRS from a third TRP, and enables a location of a non-participating target object to be determined based, at least in part, on reference signal time difference (RSTD) measurements between a time of arrival of the LOS path of the first DL-PRS and the ToAs of the NLOS paths of the first, second, and third DL-PRS. In an aspect, the non-participating target object does not participate in determining its own location.

Extended angular resolution in sensor arrays using secondary echoes

A reflector is used to extend an aperture of an omni-directional, single-point remote-sensing echo-system utilizing secondary round-trip reflections of a transmitted sensor signal. The reflector is spatially displaced from a transmission element to contribute a secondary reflection whose echo from the target object provides additional information used to triangulate both azimuthal and elevation angles of the target object.

Vehicle radar system and method for determining a position of at least one object in relation to a vehicle

The invention relates to a vehicle radar system and to a  method for determining a position of at least one object (5) in relation to a vehicle. The vehicle radar system has at least one transmitting device (4), at least three receiving devices (1, 2, 3) and a distance-measuring device. At least two of the receiving devices (1, 3) are arranged spatially separated from one another on a straight line. At least one of the further receiving devices (2) is arranged vertically offset with respect to this straight line.

System for determining a physical metric such as position

Method and system for motion detection using digital enhanced cordless telecommunication (DECT) signals

A digital enhanced cordless telecommunication (DECT) base station, the DECT base station includes a transmitter that is arranged to transmit, at different points of time, downlink transmitted DECT signals to another DECT device that differs from the DECT base station; a receiver that is arranged to receive from the other DECT device downlink reception information indicative of attributes of downlink received DECT signals that were received by the other DECT device as a result of the transmission of the downlink transmitted DECT signal; a processor that is arranged to process the downlink reception information to detect a motion that affects a reception of the downlink received DECT signals by the other device.

Method for solving time difference measurement ambiguity in beyond-visual-distance multi-base passive radar

本发明是超视距多基被动雷达中的解时差测量模糊的方法。将不同的搜索位置投影到以测角基站为中心的参考系中以计算基于角度先验信息的目标位置分布概率。通过比较该目标位置分布概率与概率门限，根据3σ准则就可以判断出目标所在区域，从而避免了对目标所在区域解析式的计算。利用缩减后的目标区域可以计算超视距时差窗，角度‑空间搜索就可以应用于超视距被动地波雷达中。利用基于角度先验信息的目标位置分布概率可以进一步改善角度‑空间搜索方法，利用目标位置分布概率构造代价函数后，该代价函数与基于时差测量值的代价函数可以共同用于空间搜索，进而提高搜索能力。

System for determining a physical metric such as position

A system is disclosed for determining a physical metric such as position. The system comprises a local signal generator (8) configured to provide a local signal and a receiver (4) configured to receive a signal having properties corresponding to those in a signal transmitted by a trusted remote source. An inertial measurement unit (12) is configured to provide a measured or assumed movement of the receiver. A correlator (6) is configured to provide a correlation signal by correlating the local signal with the received signal. A motion compensation unit (14) is configured to provide motion compensation of at least one of the local signal, the received signal, and the correlation signal based on the measured or assumed movement. A signal analysis unit (16) is configured to determine whether the received signal includes a component received in a direction that is different to a line-of-sight direction between the receiver and the trusted remote source, wherein the determination is based on the correlation signal. Finally, a metric determination unit or positioning unit (20) is configured to determine a physical metric associated with the receiver, such as its position, based on the determination made by the signal analysis unit (16).

External illuminators-based radar correction ratio phase angle-measuring method based on fm broadcast signal

本发明属于雷达目标方位角测量技术领域，特别涉及基于调频广播信号的外辐射源雷达修正比相测角方法。该基于调频广播信号的外辐射源雷达修正比相测角方法包括以下步骤：利用四单元均匀圆阵Adcock天线来接收外辐射源调频广播信号，利用参考天线接收参考信号；利用参考信号构建杂波空间，根据杂波空间，对外辐射源调频广播信号和参考信号，进行杂波相消处理，得出每个单元均匀圆阵Adcock天线对应的杂波相消后信号；对第k单元均匀圆阵Adcock天线对应的杂波相消后信号进行距离多普勒处理，根据距离多普勒处理结果，建立关于目标方位角的优化模型，求解所述关于目标方位角的优化模型，得出目标方位角。

Obstacle determination device

Disclosed is an obstacle determination device ( 1 ) including a driving assistance ECU ( 3 ) that determines collision with an obstacle detected by output of a radar ( 2 ) mounted on a vehicle and performs driving assistance for the vehicle. When a distance of a null-point zone divided by null points where the output of the radar ( 2 ) is low is represented as a distance between the null points, the driving assistance ECU ( 3 ) determines, in a distant zone that is away from a reference zone that is the null-point zone nearest to a host vehicle in a predetermined range, if the null-point zone of the distance between the null points shorter than the distance between the null points in the reference zone is detected by a predetermined number or more, that the host vehicle does not collide with the detected obstacle.

Meter wave array radar target elevation measuring method based on multi-frame information fusion

本发明属于雷达目标仰角测量技术领域，特别涉及基于多帧信息融合的米波阵列雷达目标仰角测量方法。本发明包括以下步骤：得出雷达波束扫描图的波束宽度、以及雷达波束扫描图中的峰值点个数；确定出雷达在俯仰维的空域作用角度范围内包含的角度搜索间隔数、以及雷达波束扫描图的波束宽度内包含的搜索间隔数；得到K帧目标所在距离单元的回波数据；得出波束扫描矩阵；利用波束扫描矩阵分别对K帧目标所在距离单元的回波数据进行波束形成，得到各帧数据的波束形成矢量，构成波束形成矩阵；提取出每个波束形成矢量中幅度最大的m个数据的序号，构成信息矩阵；对信息矩阵进行信息融合，得到目标仰角测量值。

The device of estimation target object information

本发明涉及一种目标物体信息估算装置，包括：物体检测单元、物体跟踪单元、零位距离设置单元、模态零位点模式准备单元和信息估算单元。所述信息估算单元产生实际零位点模式，所述实际零位点模式表示对应于由所述零位距离设置单元设置的各个零位距离的零位点的模式，所述信息估算单元将所述实际零位点模式与所述模态零位点模式相比较以得到比较结果，并且所述信息估算单元从所述比较结果估算出所述目标物体的高度作为所述目标物体的信息。

Radar device and radar method

Die Erfindung betrifft eine Radarvorrichtung mit einer Sendeempfängereinrichtung mit mindestens drei Sendeantennen und mindestens drei Empfangsantennen, wobei die Sendeempfängereinrichtung dazu ausgebildet ist, mittels der Sendeantennen Radarstrahlung auszusenden, mittels der Empfangsantennen Radarstrahlung zu empfangen und anhand der empfangenen Radarstrahlung Radardaten zu erzeugen. Die Radarvorrichtung umfasst weiter eine Auswerteeinrichtung, welche dazu ausgebildet ist, durch Auswerten der Radardaten unter Verwendung eines 2-Ziel-Winkelschätzmodells mindestens einen Winkel mindestens eines Ziels zu schätzen, wobei das 2-Ziel-Winkelschätzmodell die Ausbreitung von Radarstrahlung entlang von vier Pfaden berücksichtigt. The invention relates to a radar device with a transceiver device with at least three transmitting antennas and at least three receiving antennas, the transceiver device being designed to emit radar radiation using the transmitting antennas, to receive radar radiation using the receiving antennas and to generate radar data using the received radar radiation. The radar device also includes an evaluation device which is designed to estimate at least one angle of at least one target by evaluating the radar data using a 2-target angle estimation model, with the 2-target angle estimation model taking into account the propagation of radar radiation along four paths.

Non-line-of-sight radar-based gesture recognition

This document describes techniques and devices for non-line-of-sight radar-based gesture recognition. Through use of the techniques and devices described herein, users may control their devices through in-the-air gestures, even when those gestures are not within line-of-sight of their device's sensors. Thus, the techniques enable users to control their devices in many situations in which control is desired but conventional techniques do permit effective control, such as to turn the temperature down in a room when the user is obscured from a thermostat's gesture sensor, turn up the volume on a media player when the user is in a different room than the media player, or pause a television program when the user's gesture is obscured by a chair, couch, or other obstruction.

Method and apparatus for discriminating with respect to low elevation target objects

The invention concerns a method and apparatus for estimating a height of a target object using radar signals reflected from the target object wherein a receiver detects a plurality of radar signals reflected from the target object, respectively, at a plurality of different ranges, resolves the amplitudes of the plurality of reflected signals at the respective plurality of different ranges to generate an amplitude data set, and determining if the amplitude data set correlates to a particular height.

System for determining a physical metric such as position

A system for determining a physical metric includes a local signal generator 8 configured to provide a local signal and a receiver 4 which receives a signal with properties corresponding to a trusted source. The system further comprises a motion module 12 to provide measured or assumed movement of the receiver and a correlation unit 6 to correlate the local signal with the received signal and provide a correlation signal. A motion compensation unit 14 uses the measured movement to provide compensation of at least one of the local signal, received signal and the correlation signal. A signal analysis unit 16 uses the correlation signal to determine whether the received signal includes a component in a direction different to the line-of-sight direction between the receiver and trusted source, and a metric determination unit 20 determines a physical metric associated with the receiver based upon the determination made by the signal analysis unit.

Wireless power transmitter controlling power trasmission direction using a plurality of transmission coil and control method thereof

다양한 실시예들에 따르면, 무선 전력 송신기는, 복수의 패치 안테나들; 제1 면 상에 배치된 복수의 제1 송신 코일들; 제1 면과 제1 각도를 이루는 제2 면 상에 배치된 복수의 제2 송신 코일들; 제어 회로; 및 복수의 제1 송신 코일들 및 복수의 제2 송신 코일들 중 적어도 일부를 통해 무선 전력을 송신하도록 설정된 전력 송신 회로를 포함하고, 제어 회로는, 복수의 패치 안테나들을 통하여 무선 전력 수신기로부터 수신되는 복수의 제1 신호들을 확인하고, 확인된 복수의 제1 신호들에 기반하여, 무선 전력 수신기의 방향을 확인하고, 복수의 제1 송신 코일들 및 복수의 제2 송신 코일들 중 확인된 방향에 대응하도록 설정된 송신 코일들을 확인하고, 확인된 송신 코일들을 이용하여, 확인된 방향을 향하여 자기장을 형성하도록 전력 송신 회로를 제어하도록 설정될 수 있다.

The Method for Localization and Media Recording the Program to Perform This Method and The Apparatus for Localization in Wireless Sensor Network

본 발명은 무선 센서 네트워크에서의 센서의 위치 추정 방법 및 이를 구현하기 위한 프로그램을 기록한 기록매체와 센서 위치 추정 장치에 관한 것으로, 보다 상세히는 다수의 센서들이 무선으로 연결되어 있고 소수의 센서들의 위치정보(앵커노드의 위치정보)와 센서들 간의 연결성 정보만을 이용하여 서포트 벡터 회귀 (Support Vector Regression, 이하 SVR이라 한다.)를 사용하여 모든 센서들이 자신의 위치를 스스로 추정하는 방법 및 이를 구현하기 위한 프로그램을 기록한 기록매체와 센서 위치 추정 장치에 관한 것이다. 본 발명에 따르면, 센서들 간의의 거리나 각도 등의 정보를 사용하지 않고 단순히 연결 정보만을 사용함으로써 센서들의 위치 추정에 있어서 부가적인 장비가 필요하지 않고 다수의 센서들이 연결되어 있는 환경에서 보다 효율적인 위치 추정이 가능하며 등방성과 이방성의 구조를 가지는 센서 네트워크 환경에서 모두 성공적으로 동작하는 장점이 있다. The present invention relates to a method for estimating the position of a sensor in a wireless sensor network, and a recording medium and a sensor position estimating apparatus which records a program for implementing the same. More specifically, a plurality of sensors are wirelessly connected and position information of a few sensors. A method for all sensors to estimate their own position using Support Vector Regression (hereinafter referred to as SVR) using only the location information of the anchor node and the connectivity between the sensors and a program for implementing the same. It relates to a recording medium and a sensor position estimation device that records the. According to the present invention, by using only the connection information without using information such as the distance or angle between the sensors, no additional equipment is needed for the estimation of the position of the sensors, and more efficient location in an environment where a plurality of sensors are connected. It is possible to estimate and operate successfully in both sensor network environments with isotropic and anisotropic structures. 무선 센서 네트워크, 위치 추정, 앵커노드, 서포트 벡터 회귀, 다변 측량 Wireless sensor network, position estimation, anchor node, support vector regression, multivariate survey

Cooperative bistatic radar sensing using deep neural networks

Techniques and apparatuses are described that implement cooperative bistatic radar sensing using deep neural networks. In particular, a base station (120) operates as a transmitter of the bistatic radar, and the user equipment (110) operates as a receiver of the bistatic radar. During radar sensing, the base station (120) and the user equipment (110) use their respective deep neural networks (460 and 420) for signal generation and signal processing. The deep neural networks (460 and 420) also enable the base station (120) and the user equipment (110) to utilize the same hardware for both radar sensing and wireless communication. With cooperative bistatic radar sensing, the base station (120) and the user equipment (110) can compile explicit information about objects within an operating environment and use this information to improve wireless communication performance.

Methods for wireless measurement applications

Radar apparatus and signal processing method

The method that solution time difference measurement in the more base passive radars of over the horizon obscures

本发明是超视距多基被动雷达中的解时差测量模糊的方法。将不同的搜索位置投影到以测角基站为中心的参考系中以计算基于角度先验信息的目标位置分布概率。通过比较该目标位置分布概率与概率门限，根据3σ准则就可以判断出目标所在区域，从而避免了对目标所在区域解析式的计算。利用缩减后的目标区域可以计算超视距时差窗，角度‑空间搜索就可以应用于超视距被动地波雷达中。利用基于角度先验信息的目标位置分布概率可以进一步改善角度‑空间搜索方法，利用目标位置分布概率构造代价函数后，该代价函数与基于时差测量值的代价函数可以共同用于空间搜索，进而提高搜索能力。

Method for operating a domestic appliance

A method for operating a domestic appliance includes the steps of: receiving, by means of the domestic appliance, a radio signal from at least one radio transmission source; and determining, by means of the domestic appliance, information on surroundings of the domestic appliance by evaluating a temporal progression of an evaluation signal based on the radio signal and influenced by the surroundings of the domestic appliance. The radio signal is intended for transmission within a local radio network and/or complies with the IEEE 802.11 standard, the IEEE 802.154 standard, or the Bluetooth standard.

Radar system with improved angle formation

A radar system for recording the environment of a motor vehicle includes at least two transmitter antennas for emitting transmission signals, one or more receiver antennas for receiving transmission signals that have been reflected by objects, and signal processing equipment for processing the received signals. The antennas are arranged so that a phase center of at least one receiver antenna, with regard to a spatial direction R, does not lie outside of phase centers of two transmitter antennas that are offset in this spatial direction. The signals received by this receiver antenna are separated according to the two signal portions respectively originating from these two transmitter antennas.

Method for object classification using polarimetric radar data and device suitable therefor

The invention relates to a method for object classification which comprises the following steps for providing an elliptically or circularly polarized transmission signal which is transmitted to the object to be classified: generating a first radar image from the copolarly polarized reflection signal and generating a second radar image from the cross-polarized reflection signal and comparing the first radar image with the second radar image.

Radar-based non-line-of-sight rock detection

In diesem Dokument werden Techniken und Geräte für die Nicht-Sichtlinien-Gestenerkennung auf Radarbasis beschrieben. Durch die Verwendung von hierin beschriebenen Techniken und Geräte können Benutzer ihre Geräte durch Gesten in der Luft steuern, selbst wenn diese Gesten nicht in der Sichtlinie der Sensoren ihrer Geräte liegen. Daher versetzen die Techniken Benutzer in die Lage zum Steuern ihrer Geräte in vielen Situationen, in denen Steuerung gewünscht wird, aber herkömmliche Techniken ermöglichen eine wirksame Steuerung, wie z.°B. die Temperatur in einem Raum nach unten zu regeln, wenn der Benutzer von dem Gestensensor eines Thermostats verdeckt ist, die Lautstärke auf einem Media Player nach oben zu regeln, wenn sich ein Benutzer in einem anderen Raum als der Media Player befindet, oder ein Fernsehprogramm zu unterbrechen, wenn die Geste des Benutzers durch einen Stuhl, ein Sofa oder ein anderes Hindernis verdeckt ist. This document describes techniques and equipment for radar-based non-line-of-sight gesture recognition. Through the use of techniques and devices described herein, users can control their devices by airborne gestures, even when those gestures are out of the line of sight of their device's sensors. Thus, the techniques enable users to control their devices in many situations where control is desired, but conventional techniques allow effective control, such as, for example, B. to control the temperature in a room down when the user is obscured by the thermostat's gesture sensor, to control the volume up on a media player when a user is in a room other than the media player, or to watch a television program interrupt when the user's gesture is obscured by a chair, a sofa or other obstruction.

Radar apparatus and radar method

本发明涉及一种雷达设备，其具有带有至少三个发射天线和至少三个接收天线的收发器装置，其中，所述收发器装置构造用于，借助所述发射天线来发射雷达辐射，借助所述接收天线来接收雷达辐射并且基于所接收的雷达辐射来生成雷达数据。分析处理装置构造用于，通过在使用双目标角度估计模型的情况下分析处理所述雷达数据来估计至少一个目标的至少一个角度，其中，所述双目标角度估计模型考虑雷达辐射沿着四个路径的传播。

Vehicle radar system and method for determining a position of at least one object relative to a vehicle

Die Erfindung betrifft ein Fahrzeug-Radarsystem und ein Verfahren zur Bestimmung einer Position zumindest eines Objekts (5) relativ zu einem Fahrzeug. Das Fahrzeug-Radarsystem weist mindestens eine Sendeeinrichtung (4), mindestens drei Empfangseinrichtungen (1, 2, 3) und eine Entfernungsmessungseinrichtung auf. Dabei sind mindestens zwei der Empfangseinrichtungen (1, 3) voneinander räumlich getrennt auf einer Geraden angeordnet. Mindestens eine der weiteren Empfangseinrichtungen (2) ist höhenversetzt zu dieser Geraden angeordnet. The invention relates to a vehicle radar system and a method for determining a position of at least one object (5) relative to a vehicle. The vehicle radar system has at least one transmitting device (4), at least three receiving devices (1, 2, 3) and a distance measuring device. At least two of the receiving devices (1, 3) are arranged spatially separated from each other on a straight line. At least one of the further receiving devices (2) is arranged at a height offset from this straight line.

Sensing system for an interactive system

An interactive system includes a device configured to output a signal toward a surface such that the signal reflects off the surface at an angle and along a path of travel, and such that an object that interrupts the path of travel of the signal causes a return signal to travel in a reverse direction along the path of travel for receipt by the device. The interactive system also includes a control system communicatively coupled to the device. The control system is configured to receive data from the device, in which the data is associated with the receipt of the return signal by the device, and determine a position of the object relative to the device based on the data.

Ghost object identification for automotive radar tracking

一种对由雷达设备检测到的对象进行分类的方法，包括：从由至少一个传感器检测到的传感器数据中标识两个动态对象和一个静止对象；基于每个对象之间的分隔距离和每个对象到传感器的范围的比较来确定多个置信度。所述方法还确定它们之中的最高置信度值；将最高置信度与预定义阈值进行比较；以及当最高置信度值高于预定阈值时，增加对应的重影概率，或者当最高置信度值不高于预定阈值时，减少对应的重影概率。所述方法还包括当较低置信度对象的概率高于阈值上限时将所述对象标记为重影对象，并且当较低置信度对象低于阈值下限时将重影概率设置为零。

Target discrimination device

Method for detecting stationary object on road by radar

A method capable of determining whether a target detected by a radar is a stationary on-road object or not is disclosed, wherein a fluctuation in the reception level of a reflected wave from a target is obtained in relation to the distance of the target, a difference in reception level between a maximum point and a minimum point is obtained from the fluctuation of the reception level, and when the obtained difference is larger than a predetermined threshold value, it is determined that the target is a stationary on-road object. Further, slope over the distance between the maximum point and the minimum point is obtained, and when the obtained slope is greater than a predetermined threshold value, it is determined that the target is a stationary on-road object. Further, the distance between maximum points or between minimum points is obtained, and when the obtained distance is smaller than a predetermined threshold value, it is determined that the target is a stationary on-road object.

Method for determining the motion vector of an object

Verfahren zur Bestimmung des Bewegungsvektors (BV) eines Objekts (1) im Umgebungsbereich eines Fahrzeugs (2), umfassend folgende Schritte:- Bereitstellen von Umgebungsinformationen, die Informationen zu Umgebungsobjekten (4, 4a, 4b) im Umgebungsbereich des Fahrzeugs (2) enthalten (S10);- Empfangen von mehreren an dem Objekt (1) rückreflektierten Radarsignalanteilen an zumindest einem Radarsensor (3) des Fahrzeugs (2) (S11);- Durchführung eines Strahlverfolgungsverfahrens basierend auf den Umgebungsinformationen und Bestimmung zumindest eines mehrfach reflektierten Radarsignalanteils, der aufgrund einer Reflexion an dem Objekt (1) und zumindest einer weiteren Reflexion des Radarsignals an einem Umgebungsobjekt (4, 4a, 4b) an dem Radarsensor (3) des Fahrzeugs (2) empfangen wurde (S12);- Bestimmen des Ausbreitungsweges (5) des mehrfach reflektierten Radarsignalanteils basierend auf den Umgebungsinformationen (S13); und- Bestimmen des Bewegungsvektors (BV) des Objekts (1) basierend auf dem zumindest einen mehrfach reflektierten Radarsignalanteil und dem Ausbreitungsweg des mehrfach reflektierten Radarsignalanteils (S14). A method for determining the motion vector (BV) of an object (1) in the area surrounding a vehicle (2), comprising the following steps: - Providing information about the surroundings which contains information on surrounding objects (4, 4a, 4b) in the area surrounding the vehicle (2) ( S10); - Reception of several radar signal components that are reflected back on the object (1) at at least one radar sensor (3) of the vehicle (2) (S11); Reflection on the object (1) and at least one further reflection of the radar signal on an environmental object (4, 4a, 4b) on the radar sensor (3) of the vehicle (2) was received (S12); - Determination of the propagation path (5) of the multiple reflected radar signal component based on the environmental information (S13); and- determining the movement vector (BV) of the object (1) based on the at least one multiply ...

Automotive radio wave radar and signal processing

The invention relates to an automotive radio wave radar (50) located at a vehicle (100) wherein, a center frequency of a transmitted wave is shifted at a certain cycle, and position information of an obstacle (X) detected at three or more center frequencies is subjected to decision by majority to determine whether detection results of the obstacle are erroneous with the occurrence of jamming. If any of the detection results is determined to be abnormal, the abnormal result is discarded. An automotive radio wave radar (50) is realized which can correctly perform the obstacle detection even in the event of jamming without causing erroneous obstacle detection or omission of the detection.

Method for object classification with polarimetric radar data and suitable device therefor

Beschrieben wird ein Verfahren zur Objektklassifikation, welches folgende Schritte aufweist zur Bereitstellen eines elliptisch oder zirkular polarisierten Sendesignals, welches auf das zu klassifizierende Objekt gesendet wird, Erzeugen eines ersten Radarbildes aus dem kopolar polarisierten Reflexionssignal und Erzeugen eines zweiten Radarbildes aus dem kreuzpolarisierten Reflexionssignal sowie Vergleichen des ersten Radarbildes mit dem zweiten Radarbild. A method for object classification is described, which comprises the following steps for providing an elliptically or circularly polarized transmission signal which is transmitted to the object to be classified, generating a first radar image from the copolar polarized reflection signal and generating a second radar image from the cross-polarized reflection signal and comparing the first radar image with the second radar image.

Angle estimation for an automotive radar with multiple transmit and receive antennas for multipath propagation

Verfahren für ein Radarsystem zum Bestimmen eines Lagewinkels eines Objektes mit den Schritten:- Senden von Signalen mit mehreren Sendeantennen,- Empfangen der am Objekt reflektierten Signale mit mehreren Empfangsantennen,- Bestimmen eines Lagewinkels des Objektes aus Kombinationen von empfangenen Signalen aus unterschiedlichen Sende- und Empfangsantennen mittels eines Winkelbestimmungsverfahren,dadurch gekennzeichnet, dass- das Winkelbestimmungsverfahren die empfangenen Signale derselben Sendeantenne kohärent verarbeitet und die kohärent verarbeiteten Signale der unterschiedlichen Sendeantennen inkohärent kombiniert werden, oder- das Winkelbestimmungsverfahren die empfangenen Signale derselben Empfangsantenne kohärent verarbeitet und die kohärent verarbeiteten Signale der unterschiedlichen Empfangsantennen inkohärent kombiniert werden. Method for a radar system for determining an attitude angle of an object comprising the steps of: transmitting signals with a plurality of transmit antennas receiving the signals reflected at the object with a plurality of receive antennas determining a position angle of the object from combinations of received signals from different transmit and receive antennas by an angle determination method, characterized in that the angle determination method coherently processes the received signals of the same transmitting antenna and incoherently combines the coherently processed signals of the different transmitting antennas, or the angle determining method coherently processes the received signals of the same receiving antenna and incoherently incoheres the coherently processed signals of the different receiving antennas be combined.

Systems and methods for bistatic radio based object location detection

바이스태틱 라디오 기반 물체 로케이션 검출은 무선 디바이스에 의해, 원격 무선 디바이스의 로케이션을 획득하는 것; 원격 물체에 의해 반사되는 반사된 WWAN 기준 신호의 ToF 및 AoA(angle of arrival)를 획득하는 것; 및 원격 무선 디바이스의 로케이션, ToF 및 AoA에 기초하여 원격 물체의 로케이션을 결정하는 것을 포함할 수 있다. 다른 예에서, 무선 디바이스는 무선 트랜시버; 비일시적인 컴퓨터 판독가능 매체; 및 무선 트랜시버 및 비일시적 컴퓨터 판독가능 매체에 통신가능하게 커플링된 프로세서를 포함하고, 프로세서는, 원격 무선 디바이스의 로케이션을 결정하고; 원격 물체에 의해 반사되는 반사된 WWAN 기준 신호의 ToF 및 AoA(angle of arrival)를 획득하고; 원격 무선 디바이스의 로케이션, ToF 및 AoA에 기초하여 원격 물체의 로케이션을 결정하도록 구성된다.

RADAR DEVICE AND TARGET HEIGHT CALCULATION METHOD

Bei einer in einem Fahrzeug befindlichen Radarvorrichtung (10) werden als ein vertikaler Azimut, der ein Azimut eines Targets in einer senkrecht zu einer Bodenfläche verlaufenden Richtung ist, ein Realbild-Vertikalzimut, der ein Azimut eines über dem Boden befindlichen realen Bilds ist, aus einer reflektierten Welle berechnet, die erzeugt wird, wenn ein von einer Sendeantenne (11a bis 11d) gesendetes Sendesignal von dem Target reflektiert wird, und ein Virtuellbild-Vertikalazimut, der ein Azimut eines imaginär unter dem Boden befindlichen virtuellen Bilds ist, aus einer reflektierten Welle berechnet, die erzeugt wird, wenn das von der Sendeantenne (11a bis 11d) gesendete Sendesignal von dem Target reflektiert wird und nochmals von der Bodenfläche reflektiert wird. Als Nächstes wird bei der in einem Fahrzeug befindlichen Radarvorrichtung (10) eine Winkeldifferenz zwischen dem Realbild-Vertikalazimut und dem Virtuellbild-Vertikalazimut, die berechnet werden, berechnet, und eine Höhe des Targets von der Bodenfläche wird anhand der berechneten Winkeldifferenz berechnet. In a vehicle-mounted radar apparatus (10), as a vertical azimuth which is an azimuth of a target in a direction perpendicular to a bottom surface, a real image vertical azimuth, which is an azimuth of a real image above the ground, is selected from calculates reflected wave generated when a transmission signal sent from a transmission antenna (11a to 11d) is reflected from the target, and a virtual image vertical azimuth, which is an azimuth of an imaginary under-ground virtual image, calculated from a reflected wave which is generated when the transmission signal sent from the transmission antenna (11a to 11d) is reflected by the target and reflected again from the ground surface. Next, in the on-vehicle radar apparatus (10), an angle difference between the real image vertical azimuth and the virtual image vertical azimuth calculated is calculated, and a height of the target from the bottom surface is ...

Systems and methods for bi-static radio-based object location detection

Bi-static radio-based object location detection can include determining, by a wireless device, a location of a remote wireless device; obtaining a ToF and an angle of arrival (AoA) of a reflected WWAN reference signal reflected by a remote object; and determining a location of the remote object based on the location of the remote wireless device, the ToF, and the AoA. In another example, a wireless device includes a wireless transceiver; a non-transitory computer-readable medium; and a processor communicatively coupled to the wireless transceiver and non-transitory computer-readable medium, the processor configured to determine a location of a remote wireless device; obtain a ToF and an angle of arrival (AoA) of a reflected WWAN reference signal reflected by a remote object; and determine a location of the remote object based on the location of the remote wireless device, the ToF, and the AoA.

Obstacle detection device

In order to determine whether a target is an obstacle or not with a high level of precision, the disclosed obstacle detection device is provided with a reception antenna unit that has a plurality of reception antennas, and a determination means for determining that a target is not an obstacle if the rate of change in the reception strength of signals reflected from the target and received by the reception antennas is within a prescribed range. Thus, the phenomenon whereby multipath propagation causes fluctuations in reception strength is used to identify obstacles.

Obstacle detection device

物標が障害物であるか否かを精度良く判定する。受信アンテナを複数有する受信アンテナ部と、受信アンテナにより受信される物標からの反射波の受信強度の変化率が所定範囲内の場合に、該物標は障害物でないと判定する判定手段と、を備える。マルチパスが発生すると受信強度が変動することを利用して障害物の判定を行う。 It is accurately determined whether or not the target is an obstacle. A receiving antenna unit having a plurality of receiving antennas, and a determination means for determining that the target is not an obstacle when the rate of change in received intensity of the reflected wave from the target received by the receiving antenna is within a predetermined range; Is provided. Obstacles are determined using the fact that the reception strength varies when multipath occurs.

Radar identification of persons via vital signs

A radar apparatus comprises: a processor; a radar; and a non-transitory memory storing instructions that, when executed by the processor, configure the apparatus to perform a method. The method comprises: emitting a radar signal with the radar; receiving backscattered radar signals with the radar; extracting reflection data from the backscattered radar signal; determining at least one vital sign of at least one person from the extracted reflection data; and identifying the at least one person by using a first machine learning model to provide a similarity score between the determined at least one vital sign and at least one vital sign from previously collected vital signs of the at least one person.

Mimo radar signal processing device and reception signal processing device, and method for distinguishing propagation mode of reception signal vector of interest

A MIMO radar signal processing device comprises: a plurality of matched filter banks (121

Sensing system for an interactive system

An interactive system includes a device configured to output a signal toward a surface such that the signal reflects off the surface at an angle and along a path of travel, and such that an object that interrupts the path of travel of the signal causes a return signal to travel in a reverse direction along the path of travel for receipt by the device. The interactive system also includes a control system communicatively coupled to the device. The control system is configured to receive data from the device, in which the data is associated with the receipt of the return signal by the device, and determine a position of the object relative to the device based on the data.

Object localisation

Apparatus for identifying the position of a given object 14 being conveyed 12 in a direction of travel through a localisation region, each object having an associated tag 18. The apparatus comprises a device for receiving signals 16 from a respective tag associated with an object, and wherein the receiving device is configured to provide a plurality of coverage areas 26. The receiver receives signals as the object follows a path, of a plurality of possible paths through the region, the path passing through at least one coverage area. An identification device determines which coverage areas signals have been received from, and a positioning device determines the location of an object in relation to a given path. At least two paths respectively pass through each coverage area, and the positioning device can differentiate between the at least two paths to determine the position of the object.

基于毫米波的多人体目标识别及计数方法

本发明提供了一种基于毫米波的多人体目标识别及计数方法，包括：采用毫米波传感设备向监测空间内发射毫米波，并实时接收反射的毫米波传感信号，包括初始毫米波信号和待识别毫米波信号；对接收的毫米波传感信号进行预处理，根据预处理后的初始毫米波信号构建空间环境静物模型；从预处理后的待识别毫米波信号中过滤筛选动态人体毫米波传感信号，并基于动态人体毫米波传感信号和空间环境静物模型数据确定动态人体数量；根据动态人体毫米波传感信号分析实时物理值并采用神经网络识别分析动态人体的空间位置；将动态人体的计数信息和空间位置信息实时发送到监测服务器或用户端。提高了动态人体的识别效率、空间位置识别准确率和计数准确性。