Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction
In this paper, we study the variations of holograms of a moving source in an inhomogeneous ocean waveguide. It is assumed that intense internal waves (internal solitons) are the reason for the inhomogeneities of the shallow water waveguide. The results of 3D modeling of the sound field considering h...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-10-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/11/10/1922 |
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| author | Sergey Pereselkov Venedikt Kuz’kin Matthias Ehrhardt Sergey Tkachenko Pavel Rybyanets Nikolay Ladykin |
| author_facet | Sergey Pereselkov Venedikt Kuz’kin Matthias Ehrhardt Sergey Tkachenko Pavel Rybyanets Nikolay Ladykin |
| author_sort | Sergey Pereselkov |
| collection | DOAJ |
| description | In this paper, we study the variations of holograms of a moving source in an inhomogeneous ocean waveguide. It is assumed that intense internal waves (internal solitons) are the reason for the inhomogeneities of the shallow water waveguide. The results of 3D modeling of the sound field considering horizontal refraction by internal waves are presented. In the context of 3D modeling, the interferogram (sound intensity distributions in frequency–time coordinates) and hologram (2D Fourier transform of the interferogram) of moving sources are analyzed. The hologram consists of two disjoint regions corresponding to the unperturbed field and the field perturbed by internal waves. This structure of the hologram allows for the reconstruction of the interferogram of the unperturbed field in a waveguide in the absence of intense internal waves. The error in the reconstruction of the unperturbed interferogram is estimated. |
| first_indexed | 2024-03-10T21:08:36Z |
| format | Article |
| id | doaj.art-2d4d884ebd6f4fb288a49e238e1ad650 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T21:08:36Z |
| publishDate | 2023-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-2d4d884ebd6f4fb288a49e238e1ad6502023-11-19T16:58:36ZengMDPI AGJournal of Marine Science and Engineering2077-13122023-10-011110192210.3390/jmse11101922Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal RefractionSergey Pereselkov0Venedikt Kuz’kin1Matthias Ehrhardt2Sergey Tkachenko3Pavel Rybyanets4Nikolay Ladykin5Mathematical Physics and Information Technology Department, Voronezh State University, 394018 Voronezh, RussiaProkhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, RussiaApplied and Computational Mathematics, University of Wuppertal, Gaußstraße 20, 42119 Wuppertal, GermanyMathematical Physics and Information Technology Department, Voronezh State University, 394018 Voronezh, RussiaMathematical Physics and Information Technology Department, Voronezh State University, 394018 Voronezh, RussiaMathematical Physics and Information Technology Department, Voronezh State University, 394018 Voronezh, RussiaIn this paper, we study the variations of holograms of a moving source in an inhomogeneous ocean waveguide. It is assumed that intense internal waves (internal solitons) are the reason for the inhomogeneities of the shallow water waveguide. The results of 3D modeling of the sound field considering horizontal refraction by internal waves are presented. In the context of 3D modeling, the interferogram (sound intensity distributions in frequency–time coordinates) and hologram (2D Fourier transform of the interferogram) of moving sources are analyzed. The hologram consists of two disjoint regions corresponding to the unperturbed field and the field perturbed by internal waves. This structure of the hologram allows for the reconstruction of the interferogram of the unperturbed field in a waveguide in the absence of intense internal waves. The error in the reconstruction of the unperturbed interferogram is estimated.https://www.mdpi.com/2077-1312/11/10/1922internal wavesinterferogramhologramhorizontal refractionshallow water |
| spellingShingle | Sergey Pereselkov Venedikt Kuz’kin Matthias Ehrhardt Sergey Tkachenko Pavel Rybyanets Nikolay Ladykin Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction Journal of Marine Science and Engineering internal waves interferogram hologram horizontal refraction shallow water |
| title | Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction |
| title_full | Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction |
| title_fullStr | Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction |
| title_full_unstemmed | Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction |
| title_short | Three-Dimensional Modeling of Sound Field Holograms of a Moving Source in the Presence of Internal Waves Causing Horizontal Refraction |
| title_sort | three dimensional modeling of sound field holograms of a moving source in the presence of internal waves causing horizontal refraction |
| topic | internal waves interferogram hologram horizontal refraction shallow water |
| url | https://www.mdpi.com/2077-1312/11/10/1922 |
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