Objective function prestack amplitude preserving migration and its application
文献类型：期刊论文
| 作者 | Liu Yi-Ke; Chang Xu; Lu Meng-Xia; Hongchuan Sun |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2006-07-01 |
| 卷号 | 49期号:4页码:1150-1154 |
| 关键词 | amplitude preserving objective function weighted function |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | An iterative migrated method is developed by building a misfit function between the observed seismic data and forward modeling synthetic data. A weight function is used to compensate the amplitude attenuation for seismic wave transmitting in the earth. We consider migration as an inversion problem and find an optimal solution in the inversion. The migrated operator is the adjoint of forward modeling operator, and the transpose matrix is not dominant diagonal matrix. A preconditioning matrix is applied to make the Hessian matrix a diagonal approximation. Take-off and incidence angles are estimated for locating at the reflected points by applying stationary phase, which decreases greatly computing costs. An optimal solution, which is a true amplitude, is obtained in the process of iteration by considering the weighted factors to compensate the amplitude spreading and the angle effects with offset. Two numerical examples effectively illustrate the results of amplitude preserved and a case of field data is presented. |
| WOS关键词 | REFLECTION DATA ; INVERSION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000239222700029 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66506]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu Yi-Ke |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Beijing Union Univ, Informat Coll, Beijing 100101, Peoples R China 3.Univ Utah, Dept Geol & Geophys, Salt Lake City, UT 84112 USA |
| 推荐引用方式 GB/T 7714 | Liu Yi-Ke,Chang Xu,Lu Meng-Xia,et al. Objective function prestack amplitude preserving migration and its application[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2006,49(4):1150-1154. |
| APA | Liu Yi-Ke,Chang Xu,Lu Meng-Xia,&Hongchuan Sun.(2006).Objective function prestack amplitude preserving migration and its application.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,49(4),1150-1154. |
| MLA | Liu Yi-Ke,et al."Objective function prestack amplitude preserving migration and its application".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 49.4(2006):1150-1154. |
入库方式： OAI收割
来源：地质与地球物理研究所
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