Study on imaging algorithm for missile-borne side-looking SAR

A SAR image problem for missile-borne based on the platform anomaly movement is discussed in this paper. In this paper, a approximate illumination geometry has been defined and a new image model is presented. Image formation from missile-borne synthetic aperture radar (SAR) is limited by image degradations caused by missile´s non-level straight line movement. In this paper we assume that the missile is uniformity and beeline motion in a synthetic aperture time due to the missile´s high speed. A different reference range is adopted to cope with the range-dependent secondary range compression (SRC) to different synthetic aperture. By this approach, the SRC error can be reduced effectively. Finally, simulation results verify the correctness and validity of the proposed methods.