Experimental Testing of the RAY Computational Program for Solving Acoustic Ranging Problems on Long Trajectories Including Shelves and Deep Seas

A. V. Burenin; Буренин А. В.; M. S. Lebedev; Лебедев М. С.; V. V. Razzhivin; Разживин В. В.; S. S. Shkramada; Шкрамада С. С.; Yu. N. Morgunov; Моргунов Ю. Н.

doi:10.31857/S0320791922600421

Experimental Testing of the RAY Computational Program for Solving Acoustic Ranging Problems on Long Trajectories Including Shelves and Deep Seas

Authors: Burenin A.V.¹, Lebedev M.S.¹, Razzhivin V.V.¹, Shkramada S.S.¹, Morgunov Y.N.¹
Affiliations:
1. Ilyichev Pacific Oceanological Institute, Far Eastern Branch, Russian Academy of Sciences, 690041, Vladivostok, Russia
Issue: Vol 69, No 5 (2023)
Pages: 509-514
Section: АКУСТИКА ОКЕАНА. ГИДРОАКУСТИКА
URL: https://journals.rcsi.science/0320-7919/article/view/134464
DOI: https://doi.org/10.31857/S0320791922600421
EDN: https://elibrary.ru/NDYIAR
ID: 134464

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Abstract
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Abstract

The results of studies of the features of the formation of pulse characteristics on the axis of an underwater sound channel in waveguides with different hydrological and bathymetric conditions of the Sea of Japan and the Sea of Okhotsk are discussed. The results of model calculations and experiments characterizing the regularities of propagation of low-frequency pulse signals in complex waveguides including shelf and deep sea for hundreds of kilometers are presented. It is shown that one of the main effects that determines long-range sound propagation in complex waveguides including the shelf and deep sea is the acoustic “landslide” effect. It is also shown that numerical modeling of the process of signal propagation from the shelf to the deep sea on acoustic traces in the Sea of Japan and the Sea of Okhotsk using the RAY program provides good convergence of the calculated and experimentally obtained impulse characteristics.

Keywords

hydroacoustics, pseudorandom signals, impulse characteristic, acoustic “landslide” effect, underwater sound channel, bathymetric and hydrological conditions

References

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