Results 21 to 30 of about 6,322,023 (276)
Research on the Modified Echo Highlight Model for Underwater Vehicles with Combined Structures
Polish Maritime Research, 2023 The highlight model is widely used as a simple and convenient method in the radar field but its accuracy is not high. Based on the traditional highlight model, the algorithm has been improved to address the acoustic scattering problems of underwater ...
Xie Xin +5 more
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A numerical approach for acoustic radiation and scattering of moving bubbles at low frequencies
Frontiers in Physics, 2023 The acoustic radiation and scattering of underwater bubbles play an important role in ocean exploration, target localization, acoustic measurements, etc. The two-phase fluid flow and moving boundary result in the lack of means to predict the sound field,
Yi-Fan Li +3 more
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Sound Scattering and Its Reduction by a Janus Sphere Type [PDF]
, 2014 Copyright © 2014 Delyia Kim et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.Sound
Kim, D, Miloh, T, AVITAL, E
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Research on Scattering Feature Extraction of Underwater Moving Cluster Targets Based on the Highlight Model [PDF]
Archives of Acoustics, 2023 In detecting cluster targets in ports or near-shore waters, the echo amplitude is seriously disturbed by interface reverberation, which leads to the distortion of the traditional target intensity characteristics, and the appearance of multiple targets in
Yang Yang, Jun Fan, Bin Wang
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Applied Sciences, 2021 A fast prediction method is proposed for calculating the sound scattering of targets in the deep-sea acoustic channel by equating the sound scattering field of a complex elastic target to the acoustic field excited by a directional point source.
Jinpeng Liu +5 more
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Acoustic scattering characteristics of several zooplankton groups [PDF]
ICES Journal of Marine Science, 1996 The acoustic echo levels from zooplankton are strongly dependent upon the acoustic frequency and size, shape, orientation, and material properties of the animals. Because of the great number of species of zooplankton, it is practical to study the acoustic properties of species grouped by their gross anatomical similarity. Zooplankton from several major
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Frontiers in Physics, 2022 A coordinate transformation theory for the acoustic cloak design based on pentamode material was proposed by Norris in 2008. This theory avoids the problem of infinite density at the inner boundary of the inertial cloak, but the structural design of the ...
Feng Wang +3 more
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Zhongguo Jianchuan YanjiuObjectiveTo design a compact underwater passive acoustic decoy with high target strength, this study proposes a novel structure in which a specific number of corner reflectors are uniformly embedded on a sphere following a spherical spiral pattern.
Zihao LIU +5 more
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Characteristic mode analysis of acoustic scatterers
Journal of Sound and Vibration11 pages, 10 ...
Lukas Jelinek +4 more
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The influence of structural features on the acoustic scattering characteristics of array transducers
Journal of Physics: Conference Series, 2022 Abstract In order to study the sound scattering characteristics of array transducers on different shell structures, based on the COMSOL finite element simulation calculation method, this paper analyzes the scattered sound field characteristics of the array transducer in the single-shell structure, the single-double transition shell ...
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