WIDE BAND HYDROACOUSTIC SYSTEMS OF ECOLOGICAL MONITORING OF WATER BODIES
Abstract
The relevance of environmental monitoring of water bodies is given in the work. The productivity of various regions of the oceans is described. The creation of a complex of environ-mental monitoring of the water area is proposed. The structure of the ecological monitoring sys-tem for water bodies is presented. It consists of a wide-range side-scan sonar, a parametric profilograph, a side-scan parametric sonar and a parametric monitoring system for shallow water bodies on long tracks. A description is given of broadband side-scan sonars, a parametric profilograph, a parametric cross-section sonar and a powerful high-directional broadband radiat-ing parametric system of a stationary type. The directional diagrams of the broadband side-scan sonar in two mutually perpendicular (vertical and horizontal) planes over the entire range of operating frequencies (77, 100, 127 and 155 kHz) are presented. An echogram of a survey of a port facility is provided. For a parametric profilograph, options are presented for the design of pump antennas (outboard version (with a cowl) and version for uninhabited vehicles), radiation patterns at the pump frequency (150 kHz) and at difference frequencies (10, 15, and 20 kHz), as well as a shallow-water profilogram pond. For a broadband parametric traverse survey sonar, the ad-vantages of the device are presented and a 3D model is presented. The description of powerful high-directional broadband radiating parametric systems of a stationary type presents the pro-spects for their application and describes the experiment in the Black and Azov Seas. Stationary type parametric systems can be an effective tool for studying compression of acoustic signals in marine waveguides, implementing virtual acoustic barriers, building underwater navigation sys-tems and controlling the movement of underwater vehicles and systems, creating highly efficient marine sounding systems for environmental purposes to detect submerged objects and inhomogeneities.
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