A Robust Moving Target Shadow Detection and Tracking Method for VideoSAR

Video Synthetic Aperture Radar ( VideoSAR) can acquire high frame rate image sequence of observation scene. Moving target state can be detected by using the shadow formed by ground moving targets such as vehicles in the image sequence. This method has the advantages of high positioning accuracy, high detection probability and no minimum detectable speed limit. VideoSAR has the special image features,such as sharp change of moving target shadow, low signal-to-noise ratio and Doppler smear interference. Taking full advantage of the spatial and temporal information of frame images, three technologies including VideoSAR data preprocessing, moving target shadow detection and VideoSAR multi-target tracking method are studied. The effectiveness of the proposed method is verified by the real data whole processing results.