Regularizing method with a priori knowledge for seismic impedance inversion
文献类型：期刊论文
| 作者 | Cui Yan1,2; Wang Yan-Fei1; Yang Chang-Chun1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2009-08-01 |
| 卷号 | 52期号:8页码:2135-2141 |
| 关键词 | Impedance inversion Morozov's discrepancy principle Regularized restarted conjugate gradient method A prior knowledge |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2009.08.023 |
| 文献子类 | Article |
| 英文摘要 | This paper proposes a regularized restarted conjugate gradient method with a priori knowledge for solving ill-posed problems in impedance inversion. In Inner loop, we use a modified conjugate gradient algorithm and a restarted technique; in outer loop, the Morozov's discrepancy principle is used as a stopping rule. For choice of the regularization parameter, we use a geometric manner. The shortcoming of the traditional conjugate gradient method is that the iterations may be surplus or insufficient. This algorithm can overcome these two shortcomings by controlling the iterations within a reasonable range, so it converges quickly and accurately. A priori knowledge is obtained from the steepest descent method and a non-uniform constraint is considered to impose on the solution. Theoretic simulations are made and compared with the classical conjugate gradient method. Field data applications are performed. It reveals that the proposed algorithm has the advantages of high precision, robustness, fast calculation and practicability. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000269512600023 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/71748]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Cui Yan |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cui Yan,Wang Yan-Fei,Yang Chang-Chun. Regularizing method with a priori knowledge for seismic impedance inversion[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(8):2135-2141. |
| APA | Cui Yan,Wang Yan-Fei,&Yang Chang-Chun.(2009).Regularizing method with a priori knowledge for seismic impedance inversion.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(8),2135-2141. |
| MLA | Cui Yan,et al."Regularizing method with a priori knowledge for seismic impedance inversion".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.8(2009):2135-2141. |
入库方式： OAI收割
来源：地质与地球物理研究所
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