Ferret: a small arms fire detection system: localization concepts

Jacques Bedard; Serge Pare

doi:10.1117/12.498503

22 September 2003 Ferret: a small arms fire detection system: localization concepts

Jacques Bedard, Serge Pare

Proceedings Volume 5071, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Defense and Law Enforcement II; (2003) https://doi.org/10.1117/12.498503
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Small arms' fire generates two distinct impulsive sounds: the shock wave created by the supersonic bullet and the muzzle blast produced at the weapon by the rapid discharge of the propellant after ignition. At short ranges, the directions of arrival and the times of arrival of these two sounds provide enough information to estimate accurately the distance to the shooter. At longer ranges, the ballistic of the bullet comes into play and the shock wave parameters are used to solve the problem. The maximum pressure of the shock wave and its period is an additional piece of information that allows the estimation of both the miss distance and calibre of the bullet. Ferret is an acoustic system designed to detect and recongnize the shock wave and muzzle blast of small arms' fire. The system comprises a small array of microphones and pressure sensors connected to a standard PC-104 computer that analyses, displays, reports and logs the parameters of a recognized shot. This project is the result of seven years of a collaborative effort between Defence R&D Canada and MacDonald Dettwiler and Associates.

Citation Download Citation

Jacques Bedard and Serge Pare "Ferret: a small arms fire detection system: localization concepts", Proc. SPIE 5071, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Defense and Law Enforcement II, (22 September 2003); https://doi.org/10.1117/12.498503

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