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Range-dependence of acoustic channel with traveling sinusoidal surface wave
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/content/asa/journal/jasa/135/4/10.1121/1.4869822
2014-03-28
2014-07-26

Abstract

Range-dependence of time-varying acoustic channels caused by a traveling surface wave is investigated through water tank experiments and acoustic propagation analysis schemes. As the surface wave travels, surface reflected signals fluctuate and the fluctuation varies with source-receiver horizontal range. Amplitude fluctuations of surface reflected signals increase with increasing horizontal range whereas the opposite occurs in delay fluctuations. The scattered pressure field at a fixed time shows strong dependence on the receiver position because of caustics and shadow zones formed by the surface. The Doppler shifts of surface reflected signals also depend on the horizontal range. Comparison between measurement data and model results indicates the Doppler shift relies on the delay fluctuation under current experimental conditions.

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Scitation: Range-dependence of acoustic channel with traveling sinusoidal surface wave
http://aip.metastore.ingenta.com/content/asa/journal/jasa/135/4/10.1121/1.4869822
10.1121/1.4869822
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