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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 5. Отображено 5.
04-05-2011 дата публикации

Piecewise interpolation-based angle measurement method for four-quadrant detector

Номер: CN0102042816A
Автор: YONG CHEN, XIAFU LV, TIANRUI ZHU, RUI LI, JINGYAN RAN, CHEN YONG, LV XIAFU, ZHU TIANRUI, LI RUI, RAN JINGYAN
Принадлежит:

The invention discloses a piecewise interpolation-based angle measurement method for a four-quadrant detector, which comprises the following steps of: determining a group of discrete preliminary measurement offsets and actual offset samples according to trigonometric function relationship constituted between preliminary measurement offsets, calculated by the traditional method, and actual offset of the four-quadrant detector; carrying out curve fitting on the samples through the segmentation low-order lagrange interpolation method, wherein a generated fitted curve is used for improving the measurement precision of the four-quadrant detector to spot offset; and then converting the high-precision spot offset to an angle of a carrier offset tracking object of the four-quadrant detector through geometric composition of the four-quadrant detector. By using the method, the angle measurement precision can be improved, the huge operation cost for improving the precision can be simultaneously avoided ...

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Номер записи: 1
28-05-2014 дата публикации

Burn-in method based on SIP module

Номер: CN103823139A
Автор: ZHU TIANRUI, LAN LIDONG, ZHAO GUANGZHONG, LI ZHIYUAN, WANG XIAOHONG
Принадлежит:

The invention relates to a burn-in method based on an SIP module. The burn-in method is achieved in a burn-in box. The burn-in method is based on the SIP module comprising a processor module CPU, a program running space module, an FPGA module and a nonvolatile memory FLASH. According to the designed burn-in method, a burn-in program is written in the SIP module in a programmed mode, a power-on program automatically runs, the FPGA module is automatically configured, and running, access and control of all the modules are executed inside the tested SIP module in the burn-in process. The connecting circuit between the SIP module and the burn-in box is simple. According to the method, burn-in of the SIP module is achieved by fully using the functions of the SIP module, the complexity of the connecting circuit between the SIP module and the burn-in box is greatly lowered, the influences of an external circuit on the SIP module are reduced in the burn-in process, and meanwhile fault analysis can ...

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Номер записи: 2
03-06-2009 дата публикации

Controller of servo tracking system

Номер: CN0101446803A
Автор: CHEN YONG, LU XIAFU, LUO PING, LI HUANGONG, ZHU TIANRUI, YONG CHEN, XIAFU LU, PING LUO, HUANGONG LI, TIANRUI ZHU
Принадлежит:

The invention provides a controller of a servo tracking system, which is of higher performance, and comprises a position control loop circuit, a speed control loop, a reference model, a speed ring feedback module, a speed ring arithmetic unit and an adaptive mechanism, wherein the position control loop circuit is used for performing servo tracking control on controlled objects; the speed control loop comprises an adjustable controller used for controlling the controlled objects; the reference model is used for receiving a desired electrical pressure and outputting an ideal speed of the controlled objects under an ideal condition; the speed ring feedback module is used for obtaining the actual speed of the controlled objects and outputs; the speed ring arithmetic unit is used for receiving the ideal speed and the actual speed, so as to perform algebraic sum calculation and output speed errors; the adaptive mechanism is used for receiving the desired voltage and the speed errors, and modifications ...

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Номер записи: 3
01-12-2010 дата публикации

Controller of servo tracking system

Номер: CN0101446803B
Автор: LUO PING, CHEN YONG, LI HUANGONG, LU XIAFU, ZHU TIANRUI, PING LUO, YONG CHEN, HUANGONG LI, XIAFU LU, TIANRUI ZHU
Принадлежит:

The invention provides a controller of a servo tracking system, which is of higher performance, and comprises a position control loop circuit, a speed control loop, a reference model, a speed ring feedback module, a speed ring arithmetic unit and an adaptive mechanism, wherein the position control loop circuit is used for performing servo tracking control on controlled objects; the speed control loop comprises an adjustable controller used for controlling the controlled objects; the reference model is used for receiving a desired electrical pressure and outputting an ideal speed of the controlled objects under an ideal condition; the speed ring feedback module is used for obtaining the actual speed of the controlled objects and outputs; the speed ring arithmetic unit is used for receivingthe ideal speed and the actual speed, so as to perform algebraic sum calculation and output speed errors; the adaptive mechanism is used for receiving the desired voltage and the speed errors, and modifications ...

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Номер записи: 4
16-05-2023 дата публикации

Radio frequency communication encryption and decryption method based on microsystem

Номер: CN116132129A
Автор: ZHANG TUO, FENG CHANGLEI, WANG RUI, LI XIAOBO, ZHANG HAIQI, ZHU TIANRUI, SU HAOMIAO, WANG BINGYA, ZHENG BOXUAN, ZHOU ZHENG, SUN SHANSHAN
Принадлежит:

A radio frequency communication encryption and decryption method based on a microsystem constructs a radio frequency communication data encryption and decryption process, and effectively ensures the security of radio frequency communication of the microsystem through data grouping, matrix transformation function transformation processing, encryption iteration processing and decryption iteration processing by relying on the characteristics of rich internal resources, flexible application and the like of the microsystem. Not only is any function and data flow direction of an original system not affected, but also hardware resource requirements are not additionally increased, and the characteristics and advantages of miniaturization and light weight of a microsystem are ensured. The method can also be applied to board-level and other radio frequency communication environments, and has very high universality.

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Номер записи: 5