Resolution Analysis for Bistatic GEO Object ISAR Imaging

It is difficult to image GEO objects using ground-based radar system due to the unavailable imaging angle. In this paper, we consider the possibility to image the GEO object using an imaging system consisting of a ground-based transmitter and a space-borne receiver. The imaging angle is obtained depending on the relative motion between the LEO receiver and the GEO object. In particular, we proposed a method to characterize the resolution performance of the imaging system. Simulation results of two imaging scenarios with typical parameters show the feasibility and correctness of the method.