干旱区生态环境知识资源中心(Arid): Multipath structure of the typical under-ice sound channel in the Arctic: theory and experiment

Arid

	Multipath structure of the typical under-ice sound channel in the Arctic: theory and experiment
	Liu Chonglei; Huang Haining; Yin Li; Liu Na; Wei Chonghua; Li Qihu
来源期刊	Chinese Journal of Acoustics
ISSN	0217-9776
出版年	2019
卷号	38 期号:1 页码:21-34
英文摘要	Considering the typical acoustic environment of the Arctic, this paper proposes a method based on OASES-Bellhop coupled model to rapidly analyze the multipath structure of the under-ice sound channel. Firstly the proposed model refers to ice plate as stratified elastic media with some roughness. Secondly, it uses the perturbation method and Kirchhoff approximation theory to solve the scattering loss due to the sea ice inhomogeneity. Finally, the model predicts the multipath structure of the under-ice channel through Ray theory. The results of the numerical simulation and experiment indicate that the typical Arctic sound channel presents multipath structures due to the sea ice and seabed in the range of 6 km, respectively. The sea ice reflection paths are stable, with a short multipath spread within 14 ms. The seabed reflection paths have relatively weak strength. The proposed OASES-Bellhop coupled model successfully predicts the amplitude and delay of the multipath structure with small error, which indicates the proposed model is able to analyze and predict the multipath structure of the observed acoustic environment in experiment.
英文关键词	Arctic under-ice sound channel multipath structure
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Acoustics
CSCD记录号	CSCD:6430895
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336069
作者单位	Liu Chonglei, Institute of Acoustics, Chinese Academy of Sciences;;University of Chinese Academy of Science, ;;, ;;, Beijing;;Beijing 100190;;100049.; Huang Haining, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.; Yin Li, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.; Wei Chonghua, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.; Li Qihu, Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China.; Liu Na, The First Institute of Oceanography, SOA, Qingdao, Shandong 266061, China.
推荐引用方式 GB/T 7714	Liu Chonglei,Huang Haining,Yin Li,et al. Multipath structure of the typical under-ice sound channel in the Arctic: theory and experiment[J],2019,38(1):21-34.
APA	Liu Chonglei,Huang Haining,Yin Li,Liu Na,Wei Chonghua,&Li Qihu.(2019).Multipath structure of the typical under-ice sound channel in the Arctic: theory and experiment.Chinese Journal of Acoustics,38(1),21-34.
MLA	Liu Chonglei,et al."Multipath structure of the typical under-ice sound channel in the Arctic: theory and experiment".Chinese Journal of Acoustics 38.1(2019):21-34.