Abstract:

According to an analysis of threechannel SCANSAR-GMTI real data, a method is proposed for detection, velocityestimation, relocation and the track detection of moving targets of widearea SCANSAR-GMTI systems. In the prediction that the consistence of phase characteristic of twochannel after clutter suppression is preserved, in order to guarantee the capability of clutter suppression, the improved 3 Doppler transform (3DT) method which can achieve the global optimal performance of twochannel clutter suppression is used. According to the interfered phase of moving targets, its azimuth location and radial velocity are determined. After the compensation of the movement of scene induced by the motion of the airplane, the track of targets is detected. Real data processing results show that the proposed method is effective.