Fast calculation of converted wave traveltime in 3-D complex media
文献类型：期刊论文
| 作者 | Zhao, AH; Zhang, ZJ |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2004-07-01 |
| 卷号 | 47期号:4页码:702-707 |
| 关键词 | multiwave seismic exploration converted wave traveltime ray tracing minimum traveltime tree algorithm |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | It is one of important subjects of multiwave exploration seismology to calculate traveltimes of converted waves in complex media. This paper puts forward an improved minimum traveltime tree algorithm for fast calculation of traveltimes of converted waves in 3-D complex media, which is based on Huygens' principle and Fermat's principle. First, we improve the basic minimum traveltime tree algorithm for first-break waves in order to speed calculation of 3-D converted wave traveltimes. Second, we extend the improved algorithm for first-break waves to converted waves by separating converted waves into downward and upward traveling waves and tracing them, respectively. The numerical example shows that the method preseated in this paper for calculating converted wave traveltimes is fast and robust and can be applied to practical multiwave seismic exploration. |
| WOS关键词 | FINITE-DIFFERENCE CALCULATION ; FIELD |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000222988300023 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79623]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhao, AH |
| 作者单位 | 1.China Seismol Bur, Inst Geophys, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.China Univ Mining & Technol, Dept Resource Exploitat, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, AH,Zhang, ZJ. Fast calculation of converted wave traveltime in 3-D complex media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2004,47(4):702-707. |
| APA | Zhao, AH,&Zhang, ZJ.(2004).Fast calculation of converted wave traveltime in 3-D complex media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,47(4),702-707. |
| MLA | Zhao, AH,et al."Fast calculation of converted wave traveltime in 3-D complex media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 47.4(2004):702-707. |
入库方式： OAI收割
来源：地质与地球物理研究所
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