A Dedispersion Transform Method for Extracting the Normal Modes of a Shallow Water Acoustic Signal in the Pekeris Waveguide

doi:10.1515/aoa-2015-0002

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋环境与数值模拟研究室

	A Dedispersion Transform Method for Extracting the Normal Modes of a Shallow Water Acoustic Signal in the Pekeris Waveguide
	Yang, Guang-Bing 1,2,3; Lu, Lian-Gang 3; Gao, Da-Zhi 4; Jiang, Ying 3; Liu, Hong-Ning 3
刊名	ARCHIVES OF ACOUSTICS
	2015
卷号	40 期号:1 页码:11-18
关键词	normal mode extraction dedispersion transform Pekeris waveguide source ranging
ISSN号	0137-5075
DOI	10.1515/aoa-2015-0002
英文摘要	The normal modes cannot be extracted even in the Pekeris waveguide when the source-receiver distance is very close. This paper introduces a normal mode extraction method based on a dedispersion transform (DDT) to solve this problem. The method presented here takes advantage of DDT, which is based on the waveguide invariant such that the dispersion associated with all of the normal modes is removed at the same time. After performing DDT on a signal received in the Pekeris waveguide, the waveform of resulting normal modes is very close to the source signal, each with different position and amplitude. Each normal mode can be extracted by determining its position and amplitude parameters by applying particle swarm optimization (PSO). The waveform of the extracted normal mode is simply the waveform of the source signal; the real waveform of the received normal mode can then be recovered by applying dispersion compensation to the source signal. The method presented needs only one receiver and is verified with experimental data.
URL标识	查看原文
资助项目	National Natural Science Foundation of China[40806015] ; National Natural Science Foundation of China[41006020]
WOS研究方向	Acoustics
语种	英语
出版者	POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST FUNDAMENTAL TECH RES PAS
WOS记录号	WOS:000352204600002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/3731]
专题	业务部门_海洋环境与数值模拟研究室
作者单位	1.Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 3.State Ocean Adm, Inst Oceanog 1, Key Lab Marine Sci & Numer Modeling, Qingdao 266061, Shandong, Peoples R China; 4.Ocean Univ China, Coll Informat Sci & Technol, Qingdao 266100, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Yang, Guang-Bing,Lu, Lian-Gang,Gao, Da-Zhi,et al. A Dedispersion Transform Method for Extracting the Normal Modes of a Shallow Water Acoustic Signal in the Pekeris Waveguide[J]. ARCHIVES OF ACOUSTICS,2015,40(1):11-18.
APA	Yang, Guang-Bing,Lu, Lian-Gang,Gao, Da-Zhi,Jiang, Ying,&Liu, Hong-Ning.(2015).A Dedispersion Transform Method for Extracting the Normal Modes of a Shallow Water Acoustic Signal in the Pekeris Waveguide.ARCHIVES OF ACOUSTICS,40(1),11-18.
MLA	Yang, Guang-Bing,et al."A Dedispersion Transform Method for Extracting the Normal Modes of a Shallow Water Acoustic Signal in the Pekeris Waveguide".ARCHIVES OF ACOUSTICS 40.1(2015):11-18.