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China Electronics 14 Institute developed the first large-caliber radar telemetry integration system in China based on the construction requirements of the Wenchang launch site in Hainan, where the first flight of the Long March VII was located, and used the “reflection tracking†method to measure the trajectory of rockets. Double protection.
In the Long March VII survey mission, the system mainly undertakes the trajectory measurement of the rocket's active section trajectory, performs precise tracking of the rocket, obtains rocket distance, azimuth, pitch and other information in real time, and simultaneously receives the downlink telemetry signal to demodulate the rocket telemetry data in real time. , determine the rocket flight status.
The seven measurement radars participated in the protection of China Electronics 14 are known as the “smart eyes†in the industry. They not only have the efficacy of telescopes, but also have the characteristics of intelligence. They are distributed in many monitoring stations across the country, and they perform their duties and constitute The measurement and control link, with a group of precise monitoring and control data, enabled seamless coverage of the Long March 7 exploration journey.
Zeng Qingpeng, Chief Engineer of Radar, who is in charge of return surveying at China Electronics 14th, said: “When the rocket’s return capsule passes through the atmosphere again and reaches a height of 40 to 100 kilometers above the ground, it will form a 'black barrier.' In the 'black zone', The rocket will be temporarily lost, and at this moment, every few seconds, the 14 “wisdom eyes†must accurately predict the position.In order to just a few seconds, the team of fourteen hundred radars conducted numerous simulation exercises, screening may be All problems that arise."
China Electronics 14 is the birthplace of China’s radar industry. Its manned space engineering measurement radar team has broken through hundreds of key technologies and successfully developed dozens of models of dozens of precision measurement radars. The launch of two bombs and one star, the launch of a manned spacecraft is escorted.
(Original title: China Electronics 14th "Wisdom Eye" assists Long March 7 to fly first)
[China Instrument Network Instrument R&D] At 20 o'clock on the 25th of June, the Changzheng No. 7 carrier rocket made a successful first flight. According to the information from the 14th Institute of China Electronics Technology Group Corporation, the R&D radar telemetry integrated measurement system and seven radars are jointly Participate in the safeguard task of this first flight.