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A simplified staggered-grid finite-difference scheme and its linear solution for the first-order acoustic wave-equation modeling

文献类型：期刊论文

作者Liang, Wenquan1; Wu, Xiu2; Wang, Yanfei3; Yang, Changchun3
刊名JOURNAL OF COMPUTATIONAL PHYSICS
出版日期2018-12-01
卷号374页码:863-872
关键词Staggered-grid Finite-difference scheme Numerical dispersion Acoustic wave-equation modeling
ISSN号0021-9991
DOI10.1016/j.jcp.2018.08.011
英文摘要First-order staggered-grid finite-difference methods are widely used to synthesize seismograms theoretically. They are also the basis of least-squares reverse time migration and full waveform inversion. It is important to accelerate the wave-equation simulation while still preserving high accuracy. Usually the same staggered-grid finite difference operator is used for all of the first-order spatial derivatives in the first-order acoustic wave-equation. In this paper, we propose a simplified staggered-grid finite-difference scheme which uses different finite-difference operators for different first-order spatial derivatives in the first-order acoustic wave-equation. Because the new dispersion relation is linear, the staggered-grid finite-difference coefficients are determined in the time-space domain with the previously proposed linear method. We demonstrate by dispersion analysis and numerical simulation the efficiency of the proposed method. (C) 2018 Elsevier Inc. All rights reserved.
WOS关键词TIME-SPACE-DOMAIN ; HETEROGENEOUS MEDIA ; PROPAGATION ; VELOCITY ; DISPERSION ; OPERATORS
资助项目National Natural Science Foundation of China[91630202] ; National Natural Science Foundation of China[41704020] ; National Natural Science Foundation of China[41674114] ; Fujian Science and Technology Department[2016J05104] ; Scientific Research Foundation of Longyan University for Doctors[LB2014010] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10020100]
WOS研究方向Computer Science ; Physics
语种英语
WOS记录号WOS:000447904200039
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Science and Technology Department ; Fujian Science and Technology Department ; Scientific Research Foundation of Longyan University for Doctors ; Scientific Research Foundation of Longyan University for Doctors ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Science and Technology Department ; Fujian Science and Technology Department ; Scientific Research Foundation of Longyan University for Doctors ; Scientific Research Foundation of Longyan University for Doctors ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Science and Technology Department ; Fujian Science and Technology Department ; Scientific Research Foundation of Longyan University for Doctors ; Scientific Research Foundation of Longyan University for Doctors ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Science and Technology Department ; Fujian Science and Technology Department ; Scientific Research Foundation of Longyan University for Doctors ; Scientific Research Foundation of Longyan University for Doctors ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/89133]  
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, Yanfei
作者单位1.Longyan Univ, Coll Resource Engn, Longyan 364000, Peoples R China
2.Longyan Univ, Logist & Infrastruct Management Dept, Longyan 364000, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liang, Wenquan,Wu, Xiu,Wang, Yanfei,et al. A simplified staggered-grid finite-difference scheme and its linear solution for the first-order acoustic wave-equation modeling[J]. JOURNAL OF COMPUTATIONAL PHYSICS,2018,374:863-872.
APA Liang, Wenquan,Wu, Xiu,Wang, Yanfei,&Yang, Changchun.(2018).A simplified staggered-grid finite-difference scheme and its linear solution for the first-order acoustic wave-equation modeling.JOURNAL OF COMPUTATIONAL PHYSICS,374,863-872.
MLA Liang, Wenquan,et al."A simplified staggered-grid finite-difference scheme and its linear solution for the first-order acoustic wave-equation modeling".JOURNAL OF COMPUTATIONAL PHYSICS 374(2018):863-872.

入库方式： OAI收割

来源：地质与地球物理研究所

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