title: Acoustic firearm discharge detection and classification in an enclosed environment.
abstract: Two different signal processing algorithms are described for detection and classification of acoustic signals generated by firearm discharges in small enclosed spaces. The first is based on the logarithm of the signal energy. The second is a joint entropy. The current study indicates that a system using both signal energy and joint entropy would be able to both detect weapon discharges and classify weapon type, in small spaces, with high statistical certainty.
authors.affiliation: Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
authors.forename: Lorenzo
authors.initials: L
authors.lastname: Luzi
authors.affiliation: Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
authors.forename: Eric
authors.initials: E
authors.lastname: Gonzalez
authors.affiliation: Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
authors.forename: Paul
authors.initials: P
authors.lastname: Bruillard
authors.affiliation: Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
authors.forename: Matthew
authors.initials: M
authors.lastname: Prowant
authors.affiliation: Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
authors.forename: James
authors.initials: J
authors.lastname: Skorpik
authors.affiliation: Pacific Northwest National Laboratory, Richland, Washington 99354, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Hughes
authors.affiliation: Kennewick Police Department SWAT Team, 211 West 6th Avenue, Kennewick, Washington 99336-0108, USA.
authors.forename: Scott
authors.initials: S
authors.lastname: Child
authors.affiliation: Kennewick Police Department SWAT Team, 211 West 6th Avenue, Kennewick, Washington 99336-0108, USA.
authors.forename: Duane
authors.initials: D
authors.lastname: Kist
authors.affiliation: Department of Mathematics, Washington University in Saint Louis, Campus Box 1146, St. Louis, Missouri 63130, USA.
authors.forename: John E
authors.initials: JE
authors.lastname: McCarthy