Application of nonlinear acoustics technologies to search for biological resources in shallow water

Abstract

Application of nonlinear acoustics technologies to search for biological resources in shallow water

Tarasov S.P., Voronin V.A., Pivnev P.P., Akopdganyan G.J.

Incoming article date: 09.07.2022

The search and determination of the amount of biological resources is an urgent task, both from the point of view of food security of the Russian Federation and from the point of view of ecology. Most of the biological resources in the ocean are concentrated in shallow water zones (at depths from 1 to 200 m). The paper presents the results of the development of a parametric traverse survey sonar for searching for biological resources in shallow water. The calculation of the energy range of the parametric traverse sonar is given. The full-scale sea tests of the developed model of the traverse survey sonar in the Taganrog Bay of the Sea of Azov (shallow water conditions) are given. The average depth of the landfill was 2.2 meters. The oscillogram of the echogram recording line when determining the maximum detection range of a target in shallow water (reflected signal from a target at a distance of 1100 m) and an echogram from a target that moves away from the traverse sonar antenna at a distance of up to 800 m are given. Conclusions are drawn about the prospects of using parametric traverse-view sonars to search for fish aggregations in shallow water.

Keywords: traverse survey, parametric sonar, search for biological resources, shallow water, energy range