MULTIPLE ACOUSTIC THREAT ASSESSMENT SYSTEM

摘要

A system (10) is provided for locating and identifying an acoustic event. An acoustic sensor (20) having a pair of concentric opposing microphones (24, 26) at a fixed distance on a microphone axis (MA) is used to measure an acoustic intensity, from which a vector incorporating the acoustic event is identified. A second acoustic sensor or movement of the first acoustic sensor (20) is used to provide a second vector incorporating the acoustic event. Combination of the first and the second vector locates the acoustic event in space. A command unit (120) in communication with the acoustic sensors (20) can be used for combining the vectors as well as comparing a signal spectra of the acoustic event to stored identified spectra to provide an identification of acoustic event.