Elastic wave reverse time migration of decoupling equation based on improved cosine combined window function
文献类型：期刊论文
| 作者 | Li WenDa1; Meng XiaoHong1; Liu Hong2; Wang Jian2; Sun Jun3; Gui Sheng2 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 62期号:11页码:4378-4392 |
| 关键词 | Finite-difference Cosine-combined window Numerical dispersion Helmholtz algorithm Decoupling equation Elastic reverse time migration |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2019M0694 |
| 英文摘要 | The reverse time migration (RTM) of elastic wave vector wave field can comprehensively use the vertical and horizontal field information to clearly image the underground space, and there is no angle limitation for the imaging medium, which can more clearly image the complex structure. The algorithm of solving the wave equation, which affect the accuracy and efficiency of imaging directly is the most important things for RTM. In this paper, the cosine combined window function (CCWF) used in harmonic analysis of power system was introduced. Then we obtained optimal finite-difference schemes based on improved CCWFs. Then a vector wave field separation algorithm based on decoupling equation is introduced to improve the imaging accuracy. Numerical tests show that the imaging accuracy of the reverse time migration based on the new algorithm are significantly improved. |
| WOS关键词 | GRID FINITE-DIFFERENCE ; PRESTACK ; PROPAGATION ; SCHEME |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000495446500024 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95703]  |
| 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 | Meng XiaoHong |
| 作者单位 | 1.China Univ Geosci Beijing, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100049, Peoples R China 3.Tangshan Coll, Heibei Tangshan 063020, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li WenDa,Meng XiaoHong,Liu Hong,et al. Elastic wave reverse time migration of decoupling equation based on improved cosine combined window function[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(11):4378-4392. |
| APA | Li WenDa,Meng XiaoHong,Liu Hong,Wang Jian,Sun Jun,&Gui Sheng.(2019).Elastic wave reverse time migration of decoupling equation based on improved cosine combined window function.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(11),4378-4392. |
| MLA | Li WenDa,et al."Elastic wave reverse time migration of decoupling equation based on improved cosine combined window function".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.11(2019):4378-4392. |
入库方式： OAI收割
来源：地质与地球物理研究所
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