An Algorithm of Bistatic Sar Echo Generation Considering Shadow and Overlay Effects

The actual detection scenes faced by bistatic synthetic aperture radar (SAR) often have elevation information, which will cause shadow and overlay effects in imaging results. In view of the above problems, this paper proposes an echo generation method of bistatic SAR based on hidden point removal(HPR) operator. In this paper, according to the bistatic configuration, the shadow area is deduced first by using blanking algorithm(HPR operator). On this basis, the visibility of the target in the scene can be determined to obtain the echo. Finally, a simulation using a digital elevation model is conducted to verify the accuracy of the proposed method.