5 July 1995 Acoustic tracking of ground vehicles with ESPRIT
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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.
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thai Pham, Thai Pham, Brian M. Sadler, Brian M. Sadler, } "Acoustic tracking of ground vehicles with ESPRIT", Proc. SPIE 2485, Automatic Object Recognition V, (5 July 1995); doi: 10.1117/12.213092; https://doi.org/10.1117/12.213092

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