Research on Clutter Removal Method of Real-time Signal of Full-waveform Airborne Radar Remote Sensing to the Earth

Because the clutter composition of the real-time signal of full-waveform airborne radar remote sensing to the earth is complex, the effect of clutter filtering is difficult to be guaranteed. Therefore, the research on clutter filtering method of full-waveform airborne radar remote sensing to the earth is proposed. In this paper, the composition, characteristics and background of clutter of real-time ground remote sensing signal of full-waveform airborne radar are analyzed from four aspects: ground reflection, atmospheric noise, birds and insects, and electronic interference. Combined with the linear superposition theorem, the corresponding filter impulse response function is constructed based on the fact that the filter transmission characteristics have the same complex conjugate parameters as the radar transmission signal spectrum, and the clutter is filtered. In this test result, the average value of periodic frequency offset of adjacent signals is stable within 63.0.