Space-borne millimeter wave SAR integration test method

With the development of millimeter wave technology, the application of millimeter wave SAR system is becoming more and more extensive. and the domestic millimeter wave SAR technology is becoming more and more mature. However, due to the higher frequency and shorter wavelength of the millimeter wavelength band, the test of the millimeter wave SAR system is more difficult. In this paper, the research on the SAR test method of millimeter wave band SAR is carried out for several key indicators of millimeter wave SAR system, which is used to analyze the time domain and frequency domain performance of millimeter wave SAR system. At the same time, for several important stages in the testing process, the study of key test items and test methods is carried out.