Signal generating method for verifying angle measuring function of rendezvous and docking microwave radar
A microwave radar and signal generation technology, applied in the field of satellite signal generation, can solve the problems of cumbersome verification process, inability to comprehensively verify the microwave radar angle measurement performance, etc.
Active Publication Date: 2018-04-13
XIAN INSTITUE OF SPACE RADIO TECH
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Problems solved by technology
[0004] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a signal generation method for verifying the angle measurement function of the rendezvous and docking microwave radar, to realize the real-time analog angle measurement signal, and to measure the angle of the radar through the angle measurement signal Performance verification, which solves the problem that the verification process of the existing microwave radar angle measurement performance is cumbersome, and the angle measurement performance of the microwave radar in the rendezvous and docking process cannot be verified comprehensively and systematically.
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[0029] Combine below figure 1 The method provided by the invention is described in detail:
[0030] Before describing the specific steps of the present invention, at first the microwave radar angle measurement performance verification platform is explained, as figure 2 As shown, it is mainly composed of microwave radar, signal simulator, pointing simulation mechanism, control computer and so on.
[0031] Among them, the signal simulator transmits the angle measurement signal to the microwave radar; the signal simulator receives the multi-way gating switch control signal provided by the microwave radar to control the signal simulator multi-way gating switch module; the signal simulator receives the signal forwarded by the analog mechanism Shaft angle read clock and shaft angle feedback value. The pointing simulation mechanism simulates the rotation performance of the antenna, and returns the axis angle value of the antenna rotation to the signal simulator and microwave radar...
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The invention provides a signal generating method for verifying an angle measuring function of a rendezvous and docking microwave radar, wherein the method relates to the field of satellite signal generation technology. The method comprises the steps of firstly according to the distance, azimuth and pitch angle of an objective aircraft relative to a driving aircraft, acquiring the coordinate of the objective aircraft in a microwave radar measurement coordinate system, and then obtaining the coordinate of the objective aircraft in an antenna array surface coordinate system; then acquiring the azimuth and pitch angle of the objective aircraft in the antenna array surface coordinate system, an azimuth baseline incidence angle and a pitching baseline incidence angle; and generating an angle measuring signal according to the azimuth baseline incidence angle and the pitching baseline incidence angle, thereby realizing real-time simulation of the angle measuring signal.
Description
technical field [0001] The invention belongs to the technical field of satellite signal generation, in particular to a signal generation method for verifying the angle measurement function of rendezvous and docking microwave radar. Background technique [0002] The lunar orbit rendezvous and docking microwave radar is an important medium and long-distance measurement sensor of the GNC subsystem, and is an important communication device between the active aircraft and the target aircraft. High-precision measurement of the angle of the active aircraft to the target aircraft during the process. When the microwave radar is tested and verified on the ground, it is necessary to simulate the angle measurement signal that meets the measurement range and measurement accuracy required by the mission statement, and conduct static tests and dynamic tests respectively to judge whether the angle measurement performance of the microwave radar meets the requirements of the task specificatio...
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IPC IPC(8): G01S7/40
CPCG01S7/40
Inventor 王登峰刘东钟兴旺杨瑞强踪念科陈索芳
Owner XIAN INSTITUE OF SPACE RADIO TECH