GMTI in Circular Sar Data Using STAP

This paper presents method and results of a Ground Moving Target Indication (GMTI) experiment using multichannel Synthetic Aperture Radar (M-SAR) data collected by the four channel F-SAR system. The proposed approach is based on sub-aperture processing, Space-Time Adaptive Processing (STAP), constant false alarm rate (CFAR) thresholding and geocoding. The results are validated and compared with results of the same data set from a previous approach based on a combination of single-channel (SC) and Along-Track Interferometry (ATI) detections. It is shown that the STAP-based technique guarantees better performances when detecting moving targets with a small Radar Cross Section (RCS).