Acoustic source localization and cueing from an aerostat during the NATO SET-093 field experiment

Christian G. Reiff

doi:10.1117/12.818568

5 May 2009 Acoustic source localization and cueing from an aerostat during the NATO SET-093 field experiment

Christian G. Reiff

Proceedings Volume 7333, Unattended Ground, Sea, and Air Sensor Technologies and Applications XI; 73330M (2009) https://doi.org/10.1117/12.818568
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The US Army Research Laboratory has conducted experiments using acoustic sensor arrays suspended below tethered aerostats to detect and localize transient signals from mortars, artillery, and small arms fire. The airborne acoustic sensor array calculates an azimuth and elevation to the originating transient, and immediately cues a collocated imager to capture the remaining activity at the site of the acoustic transient. This single array's vector solution defines a groundintersect region or grid coordinate for threat reporting. Unattended ground sensor (UGS) systems can augment aerostat arrays by providing additional solution vectors from several ground-based acoustic arrays to perform a 3D triangulation on a source location. The aerostat array's advantage over ground systems is that it is not as affected by diffraction and reflection from man-made structures, trees, or terrain, and has direct line-of-sight to most events.

Citation Download Citation

Christian G. Reiff "Acoustic source localization and cueing from an aerostat during the NATO SET-093 field experiment", Proc. SPIE 7333, Unattended Ground, Sea, and Air Sensor Technologies and Applications XI, 73330M (5 May 2009); https://doi.org/10.1117/12.818568

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