Sound fields of hydroacoustic stations with flexible extended towed antennas in the presence of the sea surface
- Authors
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Oleksandr Leiko
National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute»
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- Keywords:
- Array, Array, Array
- Abstract
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The effectiveness of using hydroacoustic station with flexible extended towed antennas to illuminate the underwater environment largely depends on the presence of limiting boundaries in operating conditions. This is due to the fact that hydroacoustic stations with flexible extended towed antennas usually operate in the range of infrasonic and low sound frequencies. For them, all seas are limited either by the sea surface or the seabed. The problem of determining the sound fields that form hydroacoustic stations with flexible extended towed antennas in the presence of a limiting boundary in the form of the sea surface is considered. Using the image method, a computational model of the “sea surface-flexible extended towed antennas” body system is formulated. Analytical relations describing the sound fields formed by the sea surface, the flexible extended towed antennas and the “sea surface- flexible extended towed antennas” body system are obtained using the methods of the theory of electrohydroelasticity. Quantitative data for sound fields in the range of infrasonic frequencies are given as an example of the application of the obtained relations. It is shown that the directivity characteristic of the flexible extended towed antennas in the presence of the sea surface has the shape of a cardioid. The physical justification of the obtained results is given. The obtained materials allow us to compare the effectiveness of the use of hydroacoustic stations with flexible extended towed antennas in deep seas and seas where there is an influence of the sea surface on hydroacoustic stations with flexible extended towed antennas.
- Author Biographies
- References
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- 2026-03-30
- Section
- NAVY ARMAMENT & EQUIPMENT
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Copyright (c) 2026 Олександр Лейко ,Наталія Гамалій ,Ольга Позднякова,Ілля Аверічев
This work is licensed under a Creative Commons Attribution 4.0 International License.
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