A new approach to gunfire location coupling antenna design to field models and signal processing procedures enables direction finding and ranging of projectile sources in spectrally competitive environments, the ranging permitted in certain circumstances. The approach is based upon the notion that data collection should enable mathematical models for incident acoustic fields in antenna neighborhoods, permitting utilization of systems having high resolving power. Theory, procedures, and design are outlined and gunfire location field test results incorporating multiple shooters, echoes, and reverberation are presented. *Technology protected by US Patents 7,423,934; 7,394,724;,7,372,774; 7,123,548; and patents pending.
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