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Acoustic Sensing for Area Protection

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Conference paper

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This paper is an overview of the acoustic means developed by 01dB-METRAVIB for area protection. This topic involves multi-sensors acoustic, seismic, video camera, radars, perimetric sensors, signal processing for intelligence surveillance and reconnaissance applications, as well as fusion, in order to achieve good detection performance with low false alarm rates while reducing the requirement for human resources. Regarding multi-sensor developments, and for more than ten years, from the Bosnian to the most recent conflicts, the company has acquired a lot of experience in the area of acoustic systems for detecting and locating various threats small arm fire, mortar fire, vehicle, helicopters, aircrafts, etc.. Combat-proven, the PILARw products are now used by many Armed and Security Forces around the globe. A complete observation system PIVOT interfaced with PILARw allows threat recognition and visual tracking. For vehicle and personnel detection, PILARMAN and SNAKE systems have been evaluated. 01dB-METRAVIB is now integrating the Oper wireless technology initially developed for environmental noise monitoring in order to provide a complete sensor suite for acoustic detection. Recent advances in acoustic signal processing supported, in part, by the French DGA, allow detecting, locating, tracking, classifying and reporting of potential threats in real-time. The main algorithm improvements include false alarm reduction, multi-target localisation based on high-resolution array processing, tracking technique, target recognition and data fusion. For defence applications, the company has been developing an acoustic concept based on unattended ground sensors organised in clusters with the benefit of multi-sensor developments and of advanced signal processing. Each cluster is composed of a suite of acoustic and seismic sensors distributed over the controlled zone.

Subject Categories:

  • Defense Systems
  • Acoustic Detection and Detectors
  • Civil Defense

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