A Nonbalanced Staggered-Grid FDTD Scheme for the First-Order Elastic-Wave Extrapolation and Reverse-Time Migration
文献类型：期刊论文
| 作者 | Liang, Wenquan5; Chen, Guoxin2,3; Wang, Yanfei1; Cao, Jingjie4; Chen, Jinxin2 |
| 刊名 | IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
 |
| 出版日期 | 2022 |
| 卷号 | 15页码:4772-4781 |
| ISSN号 | 1939-1404 |
| 关键词 | Mathematical models Finite difference methods Dispersion Propagation Time-domain analysis Imaging Finite element analysis Elastic waves finite-difference methods geophysics computing reverse-time migration (RTM) |
| DOI | 10.1109/JSTARS.2022.3181000 |
| 英文摘要 | In this study, an efficient and accurate staggered-grid finite-difference time-domain method to solve the two-dimensional (2-D) first-order stress-velocity elastic-wave equation is proposed. In the conventional implementation of the staggered-grid finite-difference (SGFD) method, the same SGFD operator is used to approximate the spatial derivatives. However, we propose a numerical method based on the mixed SGFD operators that are more efficient but similar in accuracy when compared with a uniform SGFD operator. We refer to the proposed method as the nonbalanced SGFD numerical scheme that combines the high-order SGFD operators with the second-order SGFD operators. The suitability of the proposed scheme is verified by dispersion analysis. Through SGFD modeling and reverse-time migration examples, we demonstrate that the proposed nonbalanced scheme offers a similar level of accuracy with a lower computational cost compared with the time-consuming conventional SGFD method. |
| WOS关键词 | FINITE-DIFFERENCE SCHEME ; MODE SEPARATION ; ELEMENT-METHOD ; PROPAGATION ; SIMULATION ; DISPERSION ; ACCURACY ; OPERATOR ; SCALAR ; 2D |
| 资助项目 | National Natural Science Foundation of China[41904100] ; National Natural Science Foundation of China[41704120] ; National Natural Science Foundation of China[41974166] ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS[2019031] ; CAS Innovation Program[ZDBS-LY-DQC003] ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society[CJ2021GB01] |
| WOS研究方向 | Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| WOS记录号 | WOS:000814673000012 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; CAS Innovation Program ; CAS Innovation Program ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; CAS Innovation Program ; CAS Innovation Program ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; CAS Innovation Program ; CAS Innovation Program ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; Fujian Outstanding Research Talent Cultivation Project, under IGGCAS ; CAS Innovation Program ; CAS Innovation Program ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society ; Open Research Fund of Key Laboratory of Engineering Geophysical Prospecting and Detection of Chinese Geophysical Society |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/105878]  |
| 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 | Chen, Guoxin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Zhejiang Univ, Inst Marine Geol & Resources, Ocean Coll, Zhoushan 316021, Peoples R China 3.Changjiang Geophys Explorat & Testing Com Ltd, Key Lab Engn Geophys Prospecting & Detect, Chinese Geophys Soc, Wuhan 430000, Peoples R China 4.Hebei GEO Univ, Shijiazhuang 050031, Hebei, Peoples R China 5.Longyan Univ, Sch Resource Engn, Longyan 364000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Wenquan,Chen, Guoxin,Wang, Yanfei,et al. A Nonbalanced Staggered-Grid FDTD Scheme for the First-Order Elastic-Wave Extrapolation and Reverse-Time Migration[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2022,15:4772-4781. |
| APA | Liang, Wenquan,Chen, Guoxin,Wang, Yanfei,Cao, Jingjie,&Chen, Jinxin.(2022).A Nonbalanced Staggered-Grid FDTD Scheme for the First-Order Elastic-Wave Extrapolation and Reverse-Time Migration.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,15,4772-4781. |
| MLA | Liang, Wenquan,et al."A Nonbalanced Staggered-Grid FDTD Scheme for the First-Order Elastic-Wave Extrapolation and Reverse-Time Migration".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 15(2022):4772-4781. |
入库方式： OAI收割
来源：地质与地球物理研究所
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