Coherent change detection using GNSS-based passive SAR: First experimental results

This paper reports progress and results in the development of a coherent change detector using passive bistatic SAR. The bistatic topology is Space-Surface Bistatic SAR with Global Navigation Satellite Systems as transmitters of opportunity and a fixed receiver. An experimental test-bed, built to test the feasibility of such a system, is described. Current signal processing algorithms measuring surface change are conceptually explained and the obtained experimental results are presented.