Least-Squares Reverse-Time Migration of Water-Bottom-Related Multiples
文献类型：期刊论文
| 作者 | Zhang, Yanbao2,3; Liu, Yike4; Yi, Jia1 |
| 刊名 | REMOTE SENSING
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 14期号:23页码:20 |
| 关键词 | multiples imaging multiples decomposition least-squares reverse-time migration depth migration |
| DOI | 10.3390/rs14235979 |
| 英文摘要 | Reverse-time migration of multiples can generate imaging results with wider illumination, higher folds, and broader wavenumber spectra than the conventional migration of primaries. However, the results of the migration of multiples retain heavy crosstalks generated by interactions between unrelated multiples, thereby seriously degrading imaging qualities. To eliminate such crosstalks, we propose a least-squares optimized algorithm of multiples. In this method, different-order water-column multiples and water-bottom-related multiples are extracted using multiple decomposition strategies before migration procedures. The proposed method treats the nth-order water-column multiples as virtual sources for Born modeling to produce the predicted (n+1)th-order water-bottom-related multiples. In each iteration, the gradients are calculated by crosscorrelating the forward-propagated nth-order water-column multiples with the backward-propagated seismic residuals between the observed and predicted (n+1)th-order water-bottom-related multiples. The developed approach is referred to as the least-squares reverse-time migration of water-bottom-related multiples (LSRTM-WM). Numerical experiments on a layered model and the Pluto 1.5 model demonstrate that LSRTM-WM can significantly remove crosstalks and considerably improve spatial resolution. |
| WOS关键词 | FREE-SURFACE MULTIPLES |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000896559500001 |
| 出版者 | MDPI |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/106985]  |
| 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 | Zhang, Yanbao |
| 作者单位 | 1.China Earthquake Adm, China Earthquake Disaster Prevent Ctr, Beijing 100029, Peoples R China 2.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China 3.Chinese Acad Sci, Innovat Acad Precis Measurement Sci & Technol, State Key Lab Geodesy & Earths Dynam, Wuhan 430077, Peoples R China 4.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 | Zhang, Yanbao,Liu, Yike,Yi, Jia. Least-Squares Reverse-Time Migration of Water-Bottom-Related Multiples[J]. REMOTE SENSING,2022,14(23):20. |
| APA | Zhang, Yanbao,Liu, Yike,&Yi, Jia.(2022).Least-Squares Reverse-Time Migration of Water-Bottom-Related Multiples.REMOTE SENSING,14(23),20. |
| MLA | Zhang, Yanbao,et al."Least-Squares Reverse-Time Migration of Water-Bottom-Related Multiples".REMOTE SENSING 14.23(2022):20. |
入库方式： OAI收割
来源：地质与地球物理研究所
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