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Proceedings Paper

Acoustic source localization and cueing from an aerostat during the NATO SET-093 field experiment
Author(s): Christian G. Reiff
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Paper 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.

Paper Details

Date Published: 5 May 2009
PDF: 10 pages
Proc. SPIE 7333, Unattended Ground, Sea, and Air Sensor Technologies and Applications XI, 73330M (5 May 2009); doi: 10.1117/12.818568
Show Author Affiliations
Christian G. Reiff, Army Research Lab. (United States)

Published in SPIE Proceedings Vol. 7333:
Unattended Ground, Sea, and Air Sensor Technologies and Applications XI
Edward M. Carapezza, Editor(s)

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