SAR detection of moving targets based on matched fourier transform

Firstly, the echo model of moving target for SAR is constructed in this paper. According to this model, the method of detection of moving targets based on Matched Fourier Transform is discussed. Compared with the bilinear time-frequency distribution algorithms, the Matched Fourier Transform will not be affected by the cross-terms when multiple moving targets exist. Moreover, because of remaining Doppler frequency, the spectrum of strong target is widened, and then weak target will be shadowed by strong one. To solve this problem, the method of the CLEAN technique in the Matched Fourier domain is proposed to SAR detection of moving targets. The simulation results validate the effectiveness of this method.