A Squint Mode Bistatic Synthetic Aperture Radar Image Formation Algorithm Based on Second Range Compression
Zhang Sheng-kang①②; Yang Ru-liang①
①Institute of Electronics, Chinese Academy of Sciences, Beijing 100080, China; ②Graduate University of the Chinese Academy of Sciences, Beijing 100039, China
Abstract:An squint mode image formation algorithm for “Tandem” Bistatic Synthetic Aperture Radar(BSAR) is addressed in terms of its geometry and echo models, which is relative to second range compression in monostatic SAR. Aspects of second range compression, range migration and azimuth focusing, which are different with those in monostatic SAR due to the separation of receive-transmit platforms, are resolved successfully. The algorithm is validated for bistatic SAR with arbitrary bistatic angle geometry.