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Proceedings Paper

Acoustic tracking of ground vehicles with ESPRIT
Author(s): Thai Pham; Brian M. Sadler
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Paper Abstract

In this paper, the use of ESPRIT is explored with relatively small baseline acoustic sensor arrays for passive direction-of-arrival (DOA) estimation and tracking of ground vehicles in the battlefield environment. Classical delay-sum beamformers do not provide high-resolution DOA estimates and their ability to resolve closely-spaced targets is limited. This deficiency is due to the geometric constraint of the sensor array; the baseline cannot be expanded beyond a few meters due to the lack of spatial coherence. ESPRIT is attractive for acoustic array processing, operating at a lower computational rate and less sensitive to sensor array imperfections than comparable high-resolution DOA algorithms. Preliminary experimental results obtained from the application of narrowband ESPRIT for a single tracked vehicle, which is a wideband acoustic source, look promising.

Paper Details

Date Published: 5 July 1995
PDF: 7 pages
Proc. SPIE 2485, Automatic Object Recognition V, (5 July 1995); doi: 10.1117/12.213092
Show Author Affiliations
Thai Pham, Army Research Lab. (United States)
Brian M. Sadler, Army Research Lab. (United States)


Published in SPIE Proceedings Vol. 2485:
Automatic Object Recognition V
Firooz A. Sadjadi, Editor(s)

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