Retrodirective Radar for Small Projectile Detection

Retrodirective systems are of growing interest because of their unique functionality and relative simplicity compared to phased-array and synthetic-aperture approaches. Retrodirective communications has been investigated the most and is now emerging in commercial systems. Retrodirective radar is a more recent development, starting with basic research on retrodirective noise correlating radar (RNC). This presentation summarizes recent research on a much more robust retrodirective radar approach that provides the wide search and autofocus capabilities of the RNC radar, but with far better capability to measure the bearing of small, fast-moving targets in the presence of clutter.