Výsledky vyhledávání - "V. G. Petnikov"

Sound Propagation in Shallow Water with an Inhomogeneous GAS-Saturated Bottom

Autor: V. G. Petnikov, V. A. Grigor’ev, A.G. Roslyakov, Ya.E. Terekhina

Publikováno v: Acoustical Physics. 64:331-346

We present the methods and results of numerical experiments studying the low-frequency sound propagation in one of the areas of the Arctic shelf with a randomly inhomogeneous gas-saturated bottom. The characteristics of the upper layer of bottom sedi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cfe2cfb454daa5331a0847672635f872
https://doi.org/10.1134/s1063771018030053

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On the possibility of representing an acoustic field in shallow water as the sum of normal modes and quasimodes

Autor: Valery Grigorev, V. G. Petnikov

Publikováno v: Acoustical Physics. 62:700-716

Using the example of a shallow-water acoustic waveguide with a homogeneous water layer of constant thickness H lying on a homogeneous fluid absorbing half-space (bottom), we obtain estimates of distance r from a source, for which it is possible to ig

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f6b6192cd50d8ccc76563ddd49af821
https://doi.org/10.1134/s1063771016050031

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Thirty years of progress in shallow water acoustics in Russia

Autor: V. G. Petnikov, I. B. Esipov, A. N. Rutenko, A. I. Khilko, B. G. Katsnelson

Publikováno v: AIP Conference Proceedings.

The paper presents an overview of main results achieved in the field of shallow water acoustics in Russia. The results may be divided into two groups. The first represents development of the novel physical equipment for acoustic probing. The second g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c099fe8630e73f5f2eaa7bc796f7f2fd
https://doi.org/10.1063/1.4765906

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Shallow Water Variability and its Manifestation in the Interference Pattern of Sound Fields

Autor: V. M. Kuz’kin, V. G. Petnikov

Publikováno v: AIP Conference Proceedings.

Based upon the concept of the interference invariant, the variability in the interference pattern of sound fields in shallow water is described. We have considered the variability in the frequency domain (frequency shift of interference extremum) cau

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f021a0c4307192b5777d68e70ebd72bd
https://doi.org/10.1063/1.1486282

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Reconstruction of Bottom and Water Parameters in Shelf Zone on the Basis of Fusion of Geophysical and Acoustical Data

Autor: V. G. Petnikov, B. G. Katsnelson

Publikováno v: Multisensor Fusion ISBN: 9781402007231

Setup of experiment concerning determination of bottom and water properties in shallow water can be presented in the following way. Radiated acoustical signal from the fixed (the so called stationary track) or from the moving source, is being receive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::26d8621e57348123e626fc3ad6490628
https://doi.org/10.1007/978-94-010-0556-2_48

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Bottom Parameter Estimations in Shallow Water by Means of Field Inversion Methods

Autor: B. G. Katsnel’son, V. G. Petnikov

Publikováno v: Full Field Inversion Methods in Ocean and Seismo-Acoustics ISBN: 9789048145454

Two methods are proposed for the determination of the sound absorption coefficient in the bottom. The methods are based on the best fit of theoretical predictions to measurements of 1) the loss of signal level with range, and 2) vertical interference

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::416ec8bc641dc6a664436d5d8668330c
https://doi.org/10.1007/978-94-015-8476-0_58

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