Design platform test and airborne implementation of fmcw sar system

The traditional SAR radar system is relatively complex, high cost, large volume and weight, and can not be installed on small and light aircraft and starchain platforms, which limits the large-scale application of SAR. The radar system design scheme adopts technologies such as FM continuous wave system, function and system integration, RF direct modulation, digital demodulation and chip design, which reduces the complexity of the system, reduces the volume, weight and power consumption of the system, and realizes a small size, light weight and low power consumption micro SAR system. The waveguide slot array antenna and the corresponding test platform are designed, and the imaging algorithm of FMCW SAR is improved. Through the flight test of the micro SAR system on a small aircraft platform, the test results verify the effectiveness and feasibility of the system.