Abstract：This paper provides a ground moving target detection algorithm in Range-Doppler domain with Along-Track Interferometry(ATI) for dual channels SAR after studying ATI theory deeply. It describes the procedure of detection in detail and analyzes the effect of Signal-Noise-Ratio(SNR), Signal-Clutter-Ratio(SCR) and moving target’s velocity. Finally, some typical computer simulation results are presented. Comparing with routine method, the method in the paper requires lower SCR of moving target, and can detects targets both in and out of the clutter main lobe frequency. In addition, it needn’t compress echoes in azimuth, so the computation decreases.
2005, Vol. 27 
