Several sound propagation calculation methods under rough sea surface

被引：0
|
作者：
Yao M. [1 ,2 ]
Lu L. [1 ,2 ]
Guo S. [1 ,2 ]
Ma L. [1 ,2 ]
机构：
[1] Institute of Acoustics, Chinese Academy of Sciences, Beijing
[2] Key laboratory of underwater Acoustics Environment, Chinese Academy of Sciences, Beijing
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2019年 / 40卷 / 04期
关键词：
Acoustic scattering; High sea state; Sound propagation; Surface reflection coefficient; Surface roughness; Transmission loss;
D O I：
10.11990/jheu.201711056
中图分类号：
学科分类号：
摘要：
The effect of sea surface roughness on the sound propagation is of great significance to acoustic field predictions in medium- and long-ranges propagation ranges, especially for shallow oceans or oceans with a surface duct. This study investigates several sound propagation calculation methods with surface roughness-Krakenc-Kirchhoff approximation (KA), Krakenc-small slope approximation (SSA), and Ramsurf-to provide a model basis for sound propagation research with sea surface roughness. Moreover, the effectiveness of Ramsurf model was certified by analyzing trial data in high sea state, providing a model for acoustical transmission research under rough surface. It is of great significance to acoustic field prediction and sonar performance prediction. © 2019, Editorial Department of Journal of HEU. All right reserved.
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页码：781 / 785and850
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