One-step extrapolation method for reverse time migration
文献类型：期刊论文
| 作者 | Zhang, Yu1; Zhang, Guanquan2 |
| 刊名 | GEOPHYSICS
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 74期号:4页码:A29-A33 |
| 关键词 | extrapolation geophysical signal processing inverse problems seismic waves seismology wave equations |
| ISSN号 | 0016-8033 |
| DOI | 10.1190/1.3123476 |
| 英文摘要 | We have proposed a new method, a one-step extrapolation algorithm, to solve the acoustic wave equation. By introducing a square-root operator, the two-way wave equation can be formulated as a first-order partial differential equation in time, which is similar to the one-way wave equation. To solve the new wave equation, we used a stable explicit extrapolation method in the time direction and handled lateral velocity variations in the space and wavenumber domains. Unlike the conventional explicit finite-difference schemes, the new method does not suffer from numerical instability or numerical dispersion problems. It can be used to design cost-effective and high-quality reverse time migration or modeling code. |
| 资助项目 | Chinese Natural Science Foundation[10431030] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000267599500001 |
| 出版者 | SOC EXPLORATION GEOPHYSICISTS |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/8479]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Zhang, Yu |
| 作者单位 | 1.CGGVeritas, Houston, TX USA 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, State Key Lab Sci & Engn Comp, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yu,Zhang, Guanquan. One-step extrapolation method for reverse time migration[J]. GEOPHYSICS,2009,74(4):A29-A33. |
| APA | Zhang, Yu,&Zhang, Guanquan.(2009).One-step extrapolation method for reverse time migration.GEOPHYSICS,74(4),A29-A33. |
| MLA | Zhang, Yu,et al."One-step extrapolation method for reverse time migration".GEOPHYSICS 74.4(2009):A29-A33. |
入库方式： OAI收割
来源：数学与系统科学研究院
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