Vol. 14, no.2, 2022


Holographic Processing of Moving Sources in a Shallow Sea with Intense Internal Waves

Venedikt M. Kuz'kin

Prokhorov Institute of General Physics of RAS, http://www.gpi.ru/
Moscow 119991, Russian Federation
E-mail: kumiov@yandex.ru
Sergey A. Pereselkov, Elena S. Kaznacheeva, Sergey A. Tkachenko, Pavel V. Rybyanets
Voronezh State University, http://www.vsu.ru/
E-mail: pereselkov@yandex.ru, elena.kaznacheeva@yandex.ru, sega-th@mail.ru, rybyanets.edu@yandex.ru
Vladimir I. Grachev
Kotelnikov Institute of Radioengineering and Electronics of RAS, http://www.cplire.ru/
E-mail: grachev@cplire.ru

Received May 4, 2022; peer-reviewed May 11, 2022; accepted May 18, 2022

Abstract:: In a shallow water area for two frequency ranges, on the basis of numerical simulation, the influence of intense internal waves that cause the interaction of sound field modes on the formation of an interferogram and a hologram of a moving source is considered. On the hologram, the spectral densities of the source field corresponding to the unperturbed and perturbed waveguides are separated. This made it possible to reconstruct the interferogram of the unperturbed field in the presence of intense internal waves. The relative error of its reconstruction is determined. The effect of a disturbance on the reconstruction of the distance and radial velocity of a source in the presence of a disturbance is estimated.

Keywords: shallow sea, interferogram, hologram, intense internal waves, mode interaction, moving sound source

UDC 004.052.34

RENSIT, 2022, 14(2):197-204e DOI: 10.17725/rensit.2022.14.197.

Full-text electronic version of this article - web site http://en.rensit.ru/vypuski/article/444/14(2)197-204e.pdf