Modal Energy Transfer in a Low-Frequency Sound Wave Scattered by Wind Waves in a Shallow Sea
Multiple scattering of the modes of a low-frequency acoustic field by wind waves is investigated for the case of significant bottom loss of sound. Conditions on bottom attenuation, under which the equations for the mode statistical moments are applicable, have been derived. In the case of scattering by wind waves with anisotropic angular spectrum, applicability conditions of the mode spectrum equations are analysed. The shape of the mode spectrum is studied analytically and numerically for the situation where the energy transfer between modes has the character of a diffusion process.
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Document Type: Research Article
Publication date: September 1, 1997
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- Acta Acustica united with Acustica, published together with the European Acoustics Association (EAA), is an international, peer-reviewed journal on acoustics. It publishes original articles on all subjects in the field of acoustics, such as general linear acoustics, nonlinear acoustics, macrosonics, flow acoustics, atmospheric sound, underwater sound, ultrasonics, physical acoustics, structural acoustics, noise control, active control, environmental noise, building acoustics, room acoustics, acoustic materials, acoustic signal processing, computational and numerical acoustics, hearing, audiology and psychoacoustics, speech, musical acoustics, electroacoustics, auditory quality of systems. It reports on original scientific research in acoustics and on engineering applications. The journal considers scientific papers, technical and applied papers, book reviews, short communications, doctoral thesis abstracts, etc. In irregular intervals also special issues and review articles are published.
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