FireFly Acoustic Threat Detection System
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The FireFly Acoustic Threat Detection System is a system for detecting hostile fire. It has been developed jointly by the US Army Aviation and Missile Research Development and Engineering Command (AMRDEC), the U.S. Army Research Laboratory (ARL) and industry partners. The FireFly acoustic and electro-optical (EO) sensor can operate with Serenity Payload or be deployed as a stand-alone unit. FireFly was designed for support of small installations, independent of installation power.[1]
The $45,000 cost of the FireFly sensor is small enough that systems are considered disposable if a failure occurs, yet its algorithms are capable of grouping threats into classifications of small arms fire, heavy machine gun, rockets artillery and mortar, geolocating the threat with a high degree of spatial accuracy.[2][1] The FireFly system was initially deployed to Afghanistan in May 2012, to support a threat detection requirement.[1]