VSAR - A HIGH-RESOLUTION RADAR SYSTEM FOR DETECTION OF MOVING TARGETS

The velocity SAR (VSAR) is conceptual radar imaging system capable rec onstructing the three-dimensional range/azimuth/velocity image for a s cene that contains moving objects. It combines the high resolution ima ging capability of SAR with the clutter rejection capability of MTI sy stems. The clutter rejection and motion estimation capabilities of VSA R make it potentially useful for a variety of missions. The system con cept is described, the basic signal-processing algorithms are develope d, and a performance analysis of the VSAR system in the context of det ecting low-RCS ground targets is provided. The VSAR system is able to estimate the speed of moving targets, down to slow speeds of the order of 0.5 m/s.