Bio-inspired techniques for target localization

This paper develops proof-of-concept results using a frequency-diverse radar system to localize a single target in angle. The approach mimics natural echolocators and uses radar representations analogous to several well-known acoustic cues. By using a large radar bandwidth, significant variations in antenna beampatterns are used to extract information about the angle to a target across a wide angular extent. Here we show how implementation of phase-comparison monopulse for regions of low-frequency diversity improves the overall system performance over the purely frequency-diverse approach.