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Signal fading curves from computed urban acoustic wave fields
Proc. SPIE 6963, 69630K (2008); http://dx.doi.org/10.1117/12.777166
Monday 17 March 2008
Orlando, FL, USA
Unattended Ground, Sea, and Air Sensor Technologies and Applications X
Edward M. Carapezza
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Add to FacebookFuture 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.
© 2008 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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Online Apr 16, 2008
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Stephen A. Ketcham, D. Keith Wilson, Michael W. Parker and Harley H. Cudney, "Signal fading curves from computed urban acoustic wave fields",
Proc. SPIE 6963, 69630K (2008); http://dx.doi.org/10.1117/12.777166
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