Novel processing algorithm for high resolution spaceborne SAR

A precise two-dimensional spectrum and a novel imaging algorithm for h igh resolution spaceborne SAR are presented. Curved orbit model is adopted through incorporating SOA with additional cubic and quartic terms and stop-go assumption is discarded for new range model. The two-dimensional spectrum is derived by making use of Fourier transform pairs and stationary phase method based on the new range model, and a novel range migration algorithm is presented. The accuracy of the presented algorithm is confirmed with a point target simulation.