Optimization of finite difference forward modeling for elastic waves based on optimum combined window functions

doi:10.1016/j.jappgeo.2017.01.005

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	Optimization of finite difference forward modeling for elastic waves based on optimum combined window functions
	Wang Jian 1,2; Meng Xiaohong 1,2; Liu Hong 3; Zheng Wanqiu 1,2; Liu Yaning 1,2; Gui Sheng 3,4; Wang Zhiyang 3,4
刊名	JOURNAL OF APPLIED GEOPHYSICS
	2017-03-01
卷号	138 页码:62-71
关键词	Finite Difference Window Function Numerical Dispersion Pseudospectral Method
ISSN号	0926-9851
DOI	10.1016/j.jappgeo.2017.01.005
文献子类	Article
英文摘要	Full waveform inversion and reverse time migration are active research areas for seismic exploration. Forward modeling in the time domain determines the precision of the results, and numerical solutions of finite difference have been widely adopted as an important mathematical tool for forward modeling. In this article, the optimum combined of window functions was designed based on the finite difference operator using a truncated approximation of the spatial convolution series in pseudo-spectrum space, to normalize the outcomes of existing window functions for different orders. The proposed combined window functions not only inherit the characteristics of the various window functions, to provide better truncation results, but also control the truncation error of the finite difference operator manually and visually by adjusting the combinations and analyzing the characteristics of the main and side lobes of the amplitude response. Error level and elastic forward modeling under the proposed combined system were compared with outcomes from conventional window functions and modified binomial windows. Numerical dispersion is significantly suppressed, which is compared with modified binomial window function finite-difference and conventional finite-difference. Numerical simulation verifies the reliability of the proposed method. (C) 2017 Elsevier B.V. All rights reserved.
WOS关键词	SPECTRAL SCHEME ; PROPAGATION ; EQUATION ; MEDIA
WOS研究方向	Geology ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000397688700008
资助机构	National Natural Science Foundation of China(41474106 ; National 863 Project of China(2014AA06A613) ; Major National Scientific Research and Equipment Development Project(ZDYZ2012-1-02-04) ; Open Fund of Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education(GDL1607) ; Fundamental Research Funds for the Central Universities ; 41530321) ; National Natural Science Foundation of China(41474106 ; National 863 Project of China(2014AA06A613) ; Major National Scientific Research and Equipment Development Project(ZDYZ2012-1-02-04) ; Open Fund of Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education(GDL1607) ; Fundamental Research Funds for the Central Universities ; 41530321) ; National Natural Science Foundation of China(41474106 ; National 863 Project of China(2014AA06A613) ; Major National Scientific Research and Equipment Development Project(ZDYZ2012-1-02-04) ; Open Fund of Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education(GDL1607) ; Fundamental Research Funds for the Central Universities ; 41530321) ; National Natural Science Foundation of China(41474106 ; National 863 Project of China(2014AA06A613) ; Major National Scientific Research and Equipment Development Project(ZDYZ2012-1-02-04) ; Open Fund of Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education(GDL1607) ; Fundamental Research Funds for the Central Universities ; 41530321)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53045]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Wang Jian; Meng Xiaohong
作者单位	1.China Univ Geosci, Minist Educ, Key Lab Geodetect, Beijing 100083, Peoples R China 2.China Univ Geosci, Sch Geophys & Informat Engn, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang Jian,Meng Xiaohong,Liu Hong,et al. Optimization of finite difference forward modeling for elastic waves based on optimum combined window functions[J]. JOURNAL OF APPLIED GEOPHYSICS,2017,138:62-71.
APA	Wang Jian.,Meng Xiaohong.,Liu Hong.,Zheng Wanqiu.,Liu Yaning.,...&Wang Zhiyang.(2017).Optimization of finite difference forward modeling for elastic waves based on optimum combined window functions.JOURNAL OF APPLIED GEOPHYSICS,138,62-71.
MLA	Wang Jian,et al."Optimization of finite difference forward modeling for elastic waves based on optimum combined window functions".JOURNAL OF APPLIED GEOPHYSICS 138(2017):62-71.