A method of airborne SAR slow-moving targets detecting under jamming conditions

The imaging and moving targets detection capability of a Synthetic Aperture Radar (SAR) could be seriously limited or denied by an electromagnetic interference, so it is necessary to research on ground moving targets detection methods under jamming conditions. In this paper a method of detecting slow-moving ground targets using array antenna based on adaptive beamforming and Clutter Suppression Interferometry (CSI) is presented. It uses adaptive beamforming technique firstly to anti-jamming and uses CSI technique to suppress ground clutter and detect moving targets. Moreover, it uses Non-uniform displaced phase center antenna (DPCA) to eliminate the blind-speed regions. This paper analyze the theory of anti-jamming, suppressing clutter and moving target detection in detail based on SAR antenna structure and spatial geometry model of the system, then the realization steps were presented. Finally, computer simulation results validate its feasibility.