First Result of Lutan-1 Space-Surface Bistatic SAR Interferometry

Space-surface bistatic synthetic aperture radar (SS-BSAR) system has the advantage of diverse observation angles due to flexible receiving configuration, thus it plays an important role in SAR multi-angle imaging and three-dimensional deformation retrieval. In this paper, based on the LuTan-1 SAR launched in 2022, we present a SS-BSAR interferometry experiment. First, the SS-BSAR system implementation and some experiment parameters are shown. Second, we introduce the SS-BSAR synchronization scheme and its imaging methods applied in this experiment, and establish a SS-BSAR dual-antenna interferometry model. Finally, we present the imaging and interferometry results of our SS-BSAR system and analyze the experimental result. This is the first result of LuTan-1 SS-BSAR interferometry, which demonstrates the ability for remote sensing observation applications based on the SS-BSAR system.