SYSTEM AND METHOD FOR BISTATIC SAR IMAGE GENERATION WITH PHASE COMPENSATION

摘要

A method (700 ) and bistatic synthetic aperture radar (SAR) imaging system (100) generate an image (600) of a target area (110) without knowledge of the position or velocity of an illuminator (102). The system includes an illuminator (102) to illuminate a target area (110) with a null-monopulse radiation pattern (108) interleaved with a sum radiation pattern (112). The illuminator adjusts the phase terms of the sum radiation pattern to maintain a static electromagnetic field pattern at the target area. A receiver (104) receives the radiation patterns reflected from the target area and generates phase compensation terms by correlating a measured electromagnetic vector field (500) with the known static electromagnetic vector field (400). The phase compensation terms are used to generate an image of the target area.