Direct recovery of wave-penetrable scatterers in a stratified ocean waveguide

doi:10.1016/j.cam.2018.01.031

CORC > 上海财经大学 > 上海财经大学

	Direct recovery of wave-penetrable scatterers in a stratified ocean waveguide
	Liu, Keji 1; Xu, Yongzhi 2; Zou, Jun 3
刊名	JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
	2018-08-15
卷号	338 页码:239-257
关键词	Stratified ocean waveguide Inhomogeneous media Direct sampling method
ISSN号	0377-0427
DOI	10.1016/j.cam.2018.01.031
英文摘要	We shall derive a direct sampling method for the recovery of wave-penetrable inhomogeneous scatterers in a three-dimensional stratified ocean waveguide. The proposed method is simple, straightforward and computationally efficient since no matrix inversions, optimizations or solutions of ill-posed linear systems are involved. Moreover, it is highly tolerant to noise and is applicable with a few scattered fields corresponding to only two or four incidences. In addition, a priori knowledge of either the number of disconnected components or the physical features of the unknown obstacles is not required by the direct sampling method. A mathematical derivation is provided for its validation and several extensive numerical experiments are shown to evaluate the effectiveness and feasibility of the newly proposed method. (C) 2018 Elsevier B.V. All rights reserved.
WOS研究方向	Mathematics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000428827200016
内容类型	期刊论文
源URL	[http://10.2.47.112/handle/2XS4QKH4/544]
专题	上海财经大学
通讯作者	Zou, Jun
作者单位	1.Shanghai Univ Finance & Econ, Inst Sci Computat & Financial Data Anal, Sch Math, Shanghai Key Lab Financial Informat Technol, 777 Guoding Rd, Shanghai 200433, Peoples R China; 2.Univ Louisville, Dept Math, Louisville, KY 40245 USA; 3.Chinese Univ Hong Kong, Dept Math, Shatin, Hong Kong, Peoples R China
推荐引用方式 GB/T 7714	Liu, Keji,Xu, Yongzhi,Zou, Jun. Direct recovery of wave-penetrable scatterers in a stratified ocean waveguide[J]. JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS,2018,338:239-257.
APA	Liu, Keji,Xu, Yongzhi,&Zou, Jun.(2018).Direct recovery of wave-penetrable scatterers in a stratified ocean waveguide.JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS,338,239-257.
MLA	Liu, Keji,et al."Direct recovery of wave-penetrable scatterers in a stratified ocean waveguide".JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS 338(2018):239-257.