Gunfire Detection
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United States of America Patent
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Issued Date -
Jun 6, 2013
app pub date -
Aug 15, 2011
filing date -
Aug 16, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus and method for detecting gunfire is provided which uses distributed acoustic sensing to provide the gunfire detection. The method comprises interrogating an optical fibre with electromagnetic radiation to provide a distributed acoustic sensor comprising a plurality of sensing portions of the optical fibre, and analysing a measurement signal from said sensing portions to detect gunfire events. A gunfire event will typically be relatively intense but of short duration and affect multiple sensing channels. The method may detect a characteristic 602 of a muzzle blast and/or a characteristic 601 of pressure wave from a supersonic round and may determine the location of the gunfire and the location at which the round crosses the sensor.
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