Acoustic tracking of ground vehicles with ESPRIT

Thai Pham; Brian M. Sadler

doi:10.1117/12.213092

5 July 1995 Acoustic tracking of ground vehicles with ESPRIT

Thai Pham, Brian M. Sadler

Proceedings Volume 2485, Automatic Object Recognition V; (1995) https://doi.org/10.1117/12.213092
Event: SPIE's 1995 Symposium on OE/Aerospace Sensing and Dual Use Photonics, 1995, Orlando, FL, United States

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.

Citation Download Citation

Thai Pham and Brian M. Sadler "Acoustic tracking of ground vehicles with ESPRIT", Proc. SPIE 2485, Automatic Object Recognition V, (5 July 1995); https://doi.org/10.1117/12.213092

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