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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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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 10. Отображено 10.
03-12-2014 дата публикации

Fully-polarization-maintaining active tracking type optical fiber and optical comb light source

Номер: CN104184037A
Автор: WANG YISHAN, LIU YUANSHAN, ZHAO WEI, FENG YE, XU XIN, HU XIAOHONG, ZHANG WEI, YANG ZHI, LI FEITAO, WANG XIANGLIN
Принадлежит:

The invention provides a fully-polarization-maintaining active tracking type optical fiber and optical comb light source, and mainly solves the problem that a present method is sensitive to temperature and vibration. According to the optical fiber and optical comb light source, fine and coarse adjustment is introduced in frequency locking, the frequency of an optical frequency comb is locked in an active instead of a passive manner, the anti-interference capability is greatly enhanced, and active tracking frequency can be adjusted.

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Номер записи: 1
16-05-2023 дата публикации

Video image processing method and system based on FPGA

Номер: CN116132666A
Автор: LI FEITAO, ZHUANG YOUBIN, TENG CHAOYUN, ZHANG XIONG, LI BAOLONG, FU TING, HUANG CHAOGUI, RUAN HONGYAN
Принадлежит:

The invention discloses a video image processing method and system based on an FPGA (Field Programmable Gate Array), which are realized by depending on a video image processing component based on the FPGA, and the video image processing component comprises the FPGA, and a DSP (Digital Signal Processor) module, a multimode optical module, an external interface module and a storage module which are connected with the FPGA; according to the invention, a video image acquisition and processing function is mainly realized, a data link test is carried out before image data acquisition is started, and data acquisition is started when a data link satisfies a condition, so that sudden error report stop caused by interruption of the data link in a data acquisition and processing process is avoided, the read-write efficiency is improved through the plug-in storage module, and the data acquisition and processing efficiency is improved. In a scene requiring high-performance image processing, sufficient ...

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Номер записи: 2
22-04-2015 дата публикации

Method for improving definition of video image

Номер: CN104539917A
Автор: LI FEITAO, LIU YUBO
Принадлежит:

The invention provides a method for improving the definition of a video image. The method comprises the steps: transmitting, decoding and displaying video image data by adopting a video remote acquisition client and a data server by virtue of software, ensuring a network video capturing device, the remote acquisition client and the data server to stay in a respective intranet, assisting the transmission by utilizing a P2P server and utilizing a P2P-based networking mode, and completing the connection between the remote acquisition client and the data server. The invention provides the method for improving the definition of the video image, so that the frame loss rate of the video in the transmission process can be effectively controlled, the continuity and definition of the video image are higher on the aspect of view, and the damage situation of pictures can be reduced.

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Номер записи: 3
18-02-2015 дата публикации

Auxiliary positioning method based on radio frequency recognition

Номер: CN104360365A
Автор: LI FEITAO, LIU YUBO
Принадлежит:

The invention discloses an auxiliary positioning method based on radio frequency recognition. The auxiliary positioning method includes the following steps that a radio frequency recognition auxiliary positioning receiver of a mobile terminal is connected with a radio frequency recognition tag in a covering range of the radio frequency recognition auxiliary positioning receiver, and positioning data including latest updating time information of the data are stored in the radio frequency recognition tag; when latest updating time of positioning data of the radio frequency recognition auxiliary positioning receiver of the mobile terminal is anterior to latest updating time of the positioning data of the radio frequency recognition tag, the positioning data stored in the radio frequency recognition tag are transmitted to the radio frequency recognition auxiliary positioning receiver of the mobile terminal; when the latest updating time of the positioning data of the radio frequency recognition ...

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Номер записи: 4
14-01-2015 дата публикации

Laser system phase information synchronizing system and method

Номер: CN104283666A
Автор: LIU YUANSHAN, WANG YISHAN, FENG YE, XU XIN, HU XIAOHONG, ZHANG WEI, YANG ZHI, LI FEITAO, WANG XIANGLIN, ZHAO WEI
Принадлежит:

The invention provides a laser system phase information synchronizing system and method. The laser system phase information synchronizing system comprises a main phase information generation unit, a standard electrical signal generation unit and one or more auxiliary phase information generation units. The standard electrical signal generation unit is connected to the main phase information generation unit and the auxiliary phase information generation units. The main phase information generation unit is connected to the auxiliary phase information generation units. By means of the system and the method, the phases of two or more laser systems especially the phases of optical frequency comb systems can be locked by one another and synchronized.

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Номер записи: 5
04-04-2023 дата публикации

Multi-sensing image fusion method and system

Номер: CN115908518A
Автор: LI FEITAO, ZHUANG YOUBIN, RAN HUANHUAN, LEE HWA-YOON, CHEN CHUN, LI BAOLONG, TANG XINPENG, XUE YU, CHEN YI
Принадлежит:

The invention discloses a multi-sensing image fusion method and system, and the method comprises the steps: obtaining an infrared image registered with a visible light image according to the visible light image under low illumination, and obtaining a derivative enhancement image of the visible light image; performing multi-scale transformation on the visible light image, the infrared image and the derivative enhanced image by adopting a wavelet transformation method to obtain low-frequency sub-bands and high-frequency sub-bands of the three types of images respectively; fusing the low-frequency sub-band of the visible light image, the low-frequency sub-band of the infrared image and the low-frequency sub-band of the derivative enhancement image by adopting an average weight strategy to obtain a first fusion result; fusing the high-frequency sub-band of the visible light image, the high-frequency sub-band of the infrared image and the high-frequency sub-band of the derivative enhancement ...

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Номер записи: 6
13-08-2021 дата публикации

Image processing system for realizing image compression based on domestic DSP chip

Номер: CN113259679A
Автор: LI FEITAO, ZENG XIANCHONG, PI CHENGJUN, QIU JINCHENG, SHI ZIMING, 李非桃, 曾宪崇, 皮成军, 邱金成, 石子明
Принадлежит:

The invention discloses an image processing system for realizing image compression based on a domestic DSP chip, and the system comprises a video processing component and an information processing component; the image data input by an external camera is decoded by the video processing component and converted into RGB video data, and the video processing component sends the RGB video data to the information processing component; the system is characterized in that the information processing assembly comprises an FPGA, a domestic DSP chip and a core processor; the FPGA adopts JFM7K325T, the domestic DSP chip adopts an FT-M6678 chip, and the core processor adopts T7-AXP858; a domestic DSP chip and a T7-AXP858 chip are used for replacing an original imported DSP chip, the domestic DSP chip is responsible for corresponding character processing, and the T7-AXP858 chip is used for H.264 image compression and supports an offline preview function at the same time. The data transmission and processing ...

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Номер записи: 7
14-01-2015 дата публикации

Laser system frequency synchronizing system and method

Номер: CN104283100A
Автор: LIU YUANSHAN, WANG YISHAN, FENG YE, XU XIN, HU XIAOHONG, ZHANG WEI, YANG ZHI, LI FEITAO, WANG XIANGLIN, ZHAO WEI
Принадлежит:

The invention provides a laser system frequency synchronizing system and method. The laser system frequency synchronizing system comprises a main frequency signal generation unit, a standard electrical signal generation unit and one or more routes of auxiliary frequency signal generation units. The standard electrical signal generation unit is connected to the main frequency signal generation unit and the auxiliary frequency signal generation units. The main frequency signal generation unit is connected to the auxiliary frequency signal generation units. By means of the system and the method, the frequency of two or more laser systems especially the frequency of optical frequency combs can be locked by one another, and true dynamic and real-time synchronization of the frequency of the two or more laser systems especially the frequency of the optical frequency combs is achieved.

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Номер записи: 8
15-08-2023 дата публикации

Target tracking method and device based on online sample augmentation

Номер: CN116596958A
Автор: RAN HUANHUAN, ZHAO RUIXIN, LI YIJIE, CHEN CHUN, LI DONGCHEN, LI FEITAO, LEE HWA-YOON, CHEN YI, WANG DAN, CHU JUNBO, DONG PINGKAI, CHEN WEIDONG, YANG WEI, XIA TIAN, ZHAO WENJIE
Принадлежит:

The invention discloses a target tracking method and device based on online sample augmentation, and relates to the technical field of target tracking, and the method comprises the steps: obtaining a video frame, carrying out the target detection of the video frame, and obtaining a plurality of similar targets and a selected tracking target; augmenting the number of the detected target samples to form an authenticity target database; extracting ResNet50 features of each data in the authenticity database to obtain a feature library; reading a next frame, extracting ResNet50 features in a target neighborhood range, matching the ResNet50 features with the feature library, taking the current features as tracking results if matching succeeds, and updating the feature library, otherwise, executing the next step; and detecting the tracking target in the current frame, extracting the ResNet50 feature in the ROI of the tracking target, matching the ResNet50 feature with the feature library again ...

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Номер записи: 9
12-02-2014 дата публикации

Airborne entertainment system based on combination of streaming media unicast and multicast and unicast control method thereof

Номер: CN103581692A
Автор: LIU YUBO, LI FEITAO
Принадлежит:

The invention discloses an air borne entertainment system which comprises a common passenger entertainment unit, a distinguished passenger entertainment unit, a data interchange network and a passenger entertainment streaming media server, wherein the common passenger entertainment unit and the distinguished passenger entertainment unit are connected with the passenger entertainment streaming media server through the data interchange network. The invention further discloses a control method of the air borne entertainment system on the basis of streaming media unicast. The method includes the steps of monitoring a distinguished passenger service port, judging whether a client is connected successfully, judging whether a program watching request exists, sending program data point to point, judging whether a program canceling command is received, judging whether playing of programs is finished and the like. According to the system and the method, a limited and small transmission bandwidth ...

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Номер записи: 10