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Spatial Processing of Acoustic Signals in Oceanic Waveguides on a Wind Noise Background

  • OCEAN ACOUSTICS. HYDROACOUSTICS
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Abstract

The articles studies how the correlation characteristics of noise generated by wind sources affect the efficiency of spatial processing of signals received by a horizontal array in oceanic waveguides with a rough sea surface. The array gain values are analyzed for three spatial processing methods: the standard PA method, optimal linear processing, and optimal quadratic processing. Numerical simulation results for winter hydrological conditions in the Barents Sea and Pacific Ocean are presented. The authors focus on dependence of the array gain on the distance to the source. The array gain values calculated using the wind noise model and traditional noise model uncorrelated on its elements are compared.

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ACKNOWLEDGMENTS

The authors are grateful to A.I. Malekhanov for his interest in the study and useful remarks.

Funding

The study was supported by the Russian Science Foundation (grant no. 20-19-00383).

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Authors and Affiliations

  1. Institute of Applied Physics, Russian Academy of Sciences, 603950, Nizhny Novgorod, Russia

    M. A. Raevskii & V. G. Burdukovskaya

Authors
  1. M. A. Raevskii
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  2. V. G. Burdukovskaya
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Correspondence to V. G. Burdukovskaya.

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Raevskii, M.A., Burdukovskaya, V.G. Spatial Processing of Acoustic Signals in Oceanic Waveguides on a Wind Noise Background. Acoust. Phys. 69, 102–111 (2023). https://doi.org/10.1134/S1063771022700063

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  • DOI: https://doi.org/10.1134/S1063771022700063

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