Estimation of surface roughness effect on spectral characteristics of tone signals propagating along stationary paths in a shallow sea

Authors: Borodina, E.1; Salin, B.2

Source: Acoustical Physics, 1 September 2010, vol. 56, no. 5, pp. 675-683(9)

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Abstract:

Scattering of a tonal low-frequency (up to 400 Hz) acoustic signal on a rough surface during its propagation along stationary paths in a shallow water area is considered. A calculation technique of estimating the spectral power density of the signal scattered at wind waves (reverberation) given an arbitrary angular distribution of the wind wave is developed based on the Bragg scattering model. The obtained results are compared with the results of numerical simulation of resonant sound scattering at surface perturbations according to an algorithm proposed by the authors, as well as with the results of experimental investigations.

Document Type: Research Article

DOI: http://dx.doi.org/10.1134/S1063771010050131

Affiliations: 1: Email: bel@hydro.appl.sci-nnov.ru 2: Email: salin@hydro.appl.sci-nnov.ru

Publication date: September 1, 2010

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