查看文章

In this paper, the existing interference suppression algorithm for SAR especially multi-channel interference suppression algorithm is studied, and then a new deception interference suppression algorithm based on four-channel is proposed. At the first, the signal model and the mechanism of deception interference is introduced, after that an analysis of it is made. Then the similarities and differences between deception interference and echo signals from scene are compared from the perspective of four-channel signal processing. For the scene echo, the azimuth Doppler spectrum of each channel is only a fixed phase difference, but for deception interference the azimuth Doppler spectrum of each channel is varying with the deceived scene. Based on these differences, a steering vector for the channels can be constructed to make an interference suppression for deception interference. Finally, simulation experiments …