A generalized optimal 9-point scheme for frequency-domain scalar wave equation
文献类型：期刊论文
| 作者 | Chen, Jing-Bo |
| 刊名 | JOURNAL OF APPLIED GEOPHYSICS
 |
| 出版日期 | 2013-05-01 |
| 卷号 | 92页码:1-7 |
| 关键词 | Seismic Numerical Modeling Directional Derivative Different Directional Intervals Marmousi Model |
| ISSN号 | 0926-9851 |
| DOI | 10.1016/j.jappgeo.2013.02.008 |
| 英文摘要 | The rotated optimal 9-point scheme for frequency-domain scalar wave equation is widely used in frequency-domain full waveform inversion. This scheme requires equal directional sampling intervals, which limits its applicability. Recently, an average-derivative method was proposed to overcome this restriction. However, the average-derivative method is an algebraic approach, and therefore it does not inherit the geometrical property (coordinate transformations) of the rotated optimal 9-point scheme. In this paper, a geometrical approach is developed, and a generalized optimal 9-point scheme is constructed. This new scheme is based on a directional-derivative method, and includes the rotated optimal 9-point scheme as a special case. Like the average-derivative method, the number of grid points per wavelength is reduced from approximately 13 to approximately 4 by this new 9-point optimal scheme for both equal and unequal directional sampling intervals in comparison with the classical 5-point scheme. Unlike the average-derivative method, this generalized optimal 9-point scheme shares the geometrical property of the rotated optimal 9-point scheme. (c) 2013 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000318210000001 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62616]  |
| 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, Jing-Bo |
| 作者单位 | 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 | Chen, Jing-Bo. A generalized optimal 9-point scheme for frequency-domain scalar wave equation[J]. JOURNAL OF APPLIED GEOPHYSICS,2013,92:1-7. |
| APA | Chen, Jing-Bo.(2013).A generalized optimal 9-point scheme for frequency-domain scalar wave equation.JOURNAL OF APPLIED GEOPHYSICS,92,1-7. |
| MLA | Chen, Jing-Bo."A generalized optimal 9-point scheme for frequency-domain scalar wave equation".JOURNAL OF APPLIED GEOPHYSICS 92(2013):1-7. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。