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Proceedings Paper

Signal fading curves from computed urban acoustic wave fields
Author(s): Stephen A. Ketcham; D. Keith Wilson; Michael W. Parker; Harley H. Cudney
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Paper Abstract

Future US Army ground sensors in urban terrain will process acoustic signals to detect, classify, and locate sources of interest. Optimal processing will require understanding of the effects of the urban infrastructure on sound propagation. These include multi-path phenomena that must be accounted for in sensor placement and performance algorithms. This work applies Fourier analysis to urban acoustic wave-field data from three-dimensional high-performance computations to generate statistical measures of signal fading caused by scattering. The work calculates these measures from ratios of Fourier transforms of wave-field signals with and without scattering to isolate the structure-induced scattering.

Paper Details

Date Published: 23 April 2008
PDF: 8 pages
Proc. SPIE 6963, Unattended Ground, Sea, and Air Sensor Technologies and Applications X, 69630K (23 April 2008); doi: 10.1117/12.777166
Show Author Affiliations
Stephen A. Ketcham, U.S. Army Engineer Research and Development Ctr. (United States)
D. Keith Wilson, U.S. Army Engineer Research and Development Ctr. (United States)
Michael W. Parker, U.S. Army Engineer Research and Development Ctr. (United States)
Harley H. Cudney, U.S. Army Engineer Research and Development Ctr. (United States)


Published in SPIE Proceedings Vol. 6963:
Unattended Ground, Sea, and Air Sensor Technologies and Applications X
Edward M. Carapezza, Editor(s)

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