Moving target detection and imaging based on time-frequency transform

A ground simulator GSSS to be used at SAR factory, laboratory and imaging users is developed. When synchronization is set up between a real SAR and the GSSS, the system can be used to check, test the SAR system or make diagnosis for it. In this paper, we discuss the basic principle of GSS, and mainly focus on issues of SAR imaging, moving target detection and application of time-frequency transform algorithm. Several simulated examples of moving target detection and stationary scenery imaging are discussed. Simulation results are presented to validate the analysis and illumine new ideas.