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Intense Internal Waves and Their Manifestation in Interference Patterns of Received Signals on Oceanic Shelf

  • Underwater Acoustics
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Abstract

Processed data of SWARM-95 natural experiment on the New Jersey coast are reported. The experiment has been performed under conditions of perturbation of stationary path by intense internal waves, which led to horizontal refraction of acoustic waves. Separate source images, produced by direct and refracted acoustic fields, are obtained based on double Fourier transform of interference patterns. The interference patterns of the transfer functions of unperturbed waveguide and perturbation of the medium are recovered by filtering off the regions of source images in the spectrogram and applying double inverse Fourier transform to them.

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Authors and Affiliations

  1. Prokhorov General Physics Institute of the Russian Academy of Sciences, ul. Vavilova 38, Moscow, 119991, Russia

    V. M. Kuz’kin & S. A. Pereselkov

  2. Voronezh State University, Universitetskaya pl. 1, Voronezh, 394006, Russia

    S. A. Pereselkov, V. G. Zvyagin, A. Yu. Malykhin & D. Yu. Prosovetskiy

Authors
  1. V. M. Kuz’kin
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  2. S. A. Pereselkov
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  3. V. G. Zvyagin
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  4. A. Yu. Malykhin
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  5. D. Yu. Prosovetskiy
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Correspondence to V. M. Kuz’kin.

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Kuz’kin, V.M., Pereselkov, S.A., Zvyagin, V.G. et al. Intense Internal Waves and Their Manifestation in Interference Patterns of Received Signals on Oceanic Shelf. Phys. Wave Phen. 26, 160–167 (2018). https://doi.org/10.3103/S1541308X18020103

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  • DOI: https://doi.org/10.3103/S1541308X18020103

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