Self-calibrating shooter estimation

Details Self-calibrating shooter estimation Self-calibrating shooter estimation

2007-03-13

2007-03-13

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Testing, monitoring, or calibrating

C367S127000, C367S129000, C367S906000

Reexamination Certificate

active

10925876

ABSTRACT:
Shockwave-only solutions that estimate shooter position and shot trajectory are extremely sensitive to the quality and precision of the shock time-of-arrival (TOA) measurements as well as the accuracy to which relative sensor positions in space are known. Over the life of a long-deployed system, the sensor positions can shift and the performance of some sensors may degrade for various reasons. Such changes can degrade the performance of deployed shooter estimation systems. Disclosed are systems and methods that can be used to calibrate sensor positions based on shock and muzzle measurements processed from a series of shots fired from a known location and in a known direction, as well as an approach for dynamically adapting shock-only shooter estimation algorithms to compensate for sensor degradation and/or loss.

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