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Statistical Properties of a Sound Wave Scattered by a Random Surface. Application to Reflection at an Underwater Surface

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As a result of studying the diffuse reflection of an ultrasonic wave by the sea surface, we have developed a reduced model of a random swell in a small vessel.

The reflected and scattered ultrasonic signal follows the specular direction, undergoing modulations of phase and amplitude, which depend on the surface fluctuations.

It is shown that it comprises two components, one coherent and the other incoherent, which can be explained by the statistical properties of the amplitude modulation. Two methods permit the calculation of the two components, the measurement of probability densities and the measurement of the correlation functions.
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Document Type: Research Article

Publication date: January 1, 1974

More about this publication?
  • 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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