Numerical Studies on the Statistics of Acoustic Scattering from Rock Outcrops
Final rept. 1 Apr 2012-31 Mar 2013
PENNSYLVANIA STATE UNIV STATE COLLEGE APPLIED RESEARCH LAB
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An initial investigation of acoustic data has shown departure from currently used scattering theories potentially affecting the modeling of scattering statistics. An examination is needed of the connections between the rock outcrop geo-acoustic parameters and the resultant reverberation statistics. To aid in correctly understanding scattering from very rough elastic surfaces, effort needs to be put into addressing surfaces that are so rough that approximate scattering models are invalid. Results will provide a link in our understanding of false-alarm rates for target detection systems in rocky environments. Forming this link is necessary if we are to connect a physical description of the environment to weapons-frequency acoustic scattering statistics in the framework of physics-based clutter models.