Holographic Method for Mode Selection in a Shallow Sea in the Presence of Intense Internal Waves

• Published in: Physics of wave phenomena Vol. 30; no. 5; pp. 314 - 320
• Main Authors: Kuz’kin, V. M., Matvienko, Yu. V., Pereselkov, S. A., Kaznacheeva, E. S., Tkachenko, S. A.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-10-2022; Springer Nature B.V
• Subjects: Acoustics; Acoustics of Natural Media; Holography; Internal waves; Modal choice; Parameters; Physics; Physics and Astronomy; Quantum Optics; Refraction; Shallow water; Sound sources; Waveguides; intense internal waves; mode selection; two-dimensional Fourier transform; holographic interferometry; mode parameters; waveguide dispersion; horizontal refraction; numerical modeling
• ISSN: 1541-308X; 1934-807X
• DOI: 10.3103/S1541308X22050053

The results are reported of the numerical experiment on evaluating a holographic method for mode selection in a shallow water area against a background of intense internal waves causing horizontal refraction of sound source waves. Selection of modes and reconstruction of their parameters are analyzed. The horizontal refraction effects do not lead to the identity loss of mode parameters: modes are selected, and their parameters are reconstructed. Reconstructed group velocities of the modes are very close to group velocities of the unperturbed waveguide modes.