Error analysis of the converted wave deduced by equivalent velocity assumption
文献类型：SCI/SSCI论文
| 作者 | Wang W.; Wang Y. |
| 发表日期 | 2012 |
| 关键词 | converted wave EOM equivalent offset equivalent velocity error analysis time migration |
| 英文摘要 | Based on the assumption of the equivalent velocity and offset, the converted wave travel-time equation, which has a double square root due to the asymmetric ray-path of the down-going P-wave and the up-coming S-wave, can be transformed into a single square root equation if the common scatterpoint (CSP) gathers are binned. This method simplifies the equation and decreases the errors of converted wave migration transferred by P-wave velocity error, compared to the equivalent offset method (EOM) migration proposed by Bancroft, Geiger and Foltinek. In this paper, the errors caused by the introduction of equivalent velocity for the PS-wave are analysed in detail. The discrete errors and effects introduced by discretization of the equivalent offset are presented, and finally the conditions for applying CSP gathers for PS-wave processing under the control of reasonable error limits are derived. |
| 出处 | Exploration Geophysics |
| 卷 | 43 |
| 期 | 3 |
| 页 | 162-170 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0812-3985 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/30744]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Wang W.,Wang Y.. Error analysis of the converted wave deduced by equivalent velocity assumption. 2012. |
入库方式： OAI收割
来源：地理科学与资源研究所
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