Optimization of finite difference forward modeling for elastic waves based on optimum combined window functions
文献类型：期刊论文
| 作者 | Wang Jian1,2; Meng Xiaohong1,2; Liu Hong3; Zheng Wanqiu1,2; Liu Yaning1,2; Gui Sheng3,4; Wang Zhiyang3,4 |
| 刊名 | JOURNAL OF APPLIED GEOPHYSICS
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000397688700008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 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) |
| 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. |
入库方式： OAI收割
来源：地质与地球物理研究所
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