Wave-mode separation in inhomogeneous anisotropic media based on adaptive sampling
文献类型：期刊论文
| 作者 | Wang, Jian2; Liu, Hong1 |
| 刊名 | JOURNAL OF GEOPHYSICS AND ENGINEERING
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 17期号:5页码:791-798 |
| 关键词 | elastic wave anisotropic media adaptive sampling wave-mode reverse time migration |
| ISSN号 | 1742-2132 |
| DOI | 10.1093/jge/gxaa025 |
| 英文摘要 | The reverse time migration of an elastic wave is an advanced method for an imaging velocity model, and the reverse time migration of an elastic inhomogeneous TTI medium has become a research hotspot. The amount of calculation and storage is an important factor restricting its development. To solve the storage problem, we improve the wave field separation algorithm using adaptive sampling in the process of reverse time migration. This resampling algorithm can retain the core region and resample the marginal area of a quasi-differential operator. After sampling we only need to save the sampling point and the sampling location. It is proved by model calculation that the storage capacity of the algorithm can reduce a large part of the computational time of a traditional algorithm without reducing calculation accuracy. The new algorithm is more suitable for GPU because the storage is greatly reduced. In the process of reverse time migration, we can store the quasi-differential operator in the GPU so as to avoid a lot of I/O of GPU to CPU and improve calculation efficiency. |
| 资助项目 | project of "Research on digital inspection technology of welding seam quality in shipbuilding"[E01Z160101] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000592214000001 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" ; project of "Research on digital inspection technology of welding seam quality in shipbuilding" |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/99862]  |
| 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 | Wang, Jian |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Ctr Ultrason & Technol, Inst Acoust, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Jian,Liu, Hong. Wave-mode separation in inhomogeneous anisotropic media based on adaptive sampling[J]. JOURNAL OF GEOPHYSICS AND ENGINEERING,2020,17(5):791-798. |
| APA | Wang, Jian,&Liu, Hong.(2020).Wave-mode separation in inhomogeneous anisotropic media based on adaptive sampling.JOURNAL OF GEOPHYSICS AND ENGINEERING,17(5),791-798. |
| MLA | Wang, Jian,et al."Wave-mode separation in inhomogeneous anisotropic media based on adaptive sampling".JOURNAL OF GEOPHYSICS AND ENGINEERING 17.5(2020):791-798. |
入库方式： OAI收割
来源：地质与地球物理研究所
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