Bistatic SAR Imaging with GNSS Transmitters and Low-Orbit Areceivers

This paper presents bistatic synthetic aperture radar imaging preliminary results with GNSS transmitters and low-orbit satellite receivers. The establishment of the scene model which low-orbit satellite receives the GNSS satellite transmitting signals after being reflected by the target is achieved by STK. The “CoverDefinition” module is used to further analyze the GNSS-BiSAR visible area coverage during satellites motion. BP imaging algorithm and improved series reversion method are compared and their respective characteristics and applicable conditions are discussed.