Homing Radar Tracking Accuracy Improvement with Frequency Diversity

Abstract

Available theory concerning glint reduction by usage of frequency diversity in a radar tracker is reviewed and unified. The theory was verified experimentally using 1) a target consisting of two corner reflectors (which could be representative of a low-flying aircraft and its sea image), 2) an isolated aircraft in level flight, and 3) a boat in a sea-clutter background. A simulation was used to reflect this glint reduction into a reduction of miss distance. The rms miss is reduced by as much as a factor of three corresponding to usage of nine carrier frequencies.