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航空校飞是中法海洋卫星(Chinese-French Oceanic SATellite,CFOSAT)散射计发射前需要完成的一项重要实验内容,它可以检验星载散射计的各项功能和性能,获取有效数据,是保障散射计在轨正常工作的重要环节。在本次校飞实验中,利用了回波模拟器对散射计进行地面系统测试及定标验证,探索了一种利用回波模拟器对星载散射计进行系统测试定标的方法。运用该方法对CFOSAT星载散射计进行全系统地面测试以及定标实验。回波模拟器提供给散射计标准的、已知的回波信号,散射计处理该信号后,获取系统参数并得到定标常数。校飞的实验结果验证回波模拟器对星载散射计地面测试和定标方法的可行性和准确性。
Aviation school flight is an important experiment to be completed before the launching of the Chinese-French Oceanic SATellite (CFOSAT) scatterometer. It can verify the functions and performance of the spaceborne scatterometer and obtain valid data as a guarantee Scatterometer in the track an important part of normal work. In this school flight experiment, the echo simulator was used to test and calibrate the scatterometer in the ground system. A method of system test and calibration of the satellite scatterometer was explored using echo simulator. This method is used to carry out full-system ground test and calibration experiment on the CFOSAT spaceborne scatterometer. The echo simulator provides the standard, known echo signal of the scatterometer. After the scatterometer processes the signal, it obtains the system parameters and obtains the calibration constants. The Experimental Results of School Flying Tests Verify the Feasibility and Accuracy of Echo Simulator for Ground Testing and Calibration Methods of Spaceborne Scatterometer.