Research on A novel fast backprojection algorithm for stripmap bistatic SAR imaging

In this paper, a novel fast backprojection (BP) algorithm for stripmap bistatic SAR is presented. This algorithm gets improvements from the perspective of beam form and the space relation between the flight path and the mapping areas. Comparing with the traditional BP algorithm, the fast BP algorithm has higher computational efficiency. Also, it keeps the advantages of the traditional BP algorithm, such as robustness, high imaging precision, small memory requirements in processor and parallel processing easily. The imaging results of point targets and the experimental data verify the advantages of the fast BP algorithm.