A robust and accurate traveltime calculation using a frequency-domain two-way wave-equation modeling algorithm
文献类型：期刊论文
| 作者 | Qin, YL; Zhang, ZJ; Shin, CS |
| 刊名 | JOURNAL OF SEISMIC EXPLORATION
 |
| 出版日期 | 2005-04-01 |
| 卷号 | 13期号:3页码:227-245 |
| 关键词 | Traveltime Calculation Frequency-domain Modeling Parameter Analysis |
| ISSN号 | 0963-0651 |
| 文献子类 | Article |
| 英文摘要 | We improve the accuracy and stability of a traveltime calculation method using a frequency-domain modeling algorithm. We perform a parameter analysis to obtain the optimum combination of frequency and damping factor and thus improve the accuracy of traveltime. Then we obtain the empirical formula for our numerical algorithm. Lastly, we propose the adaptive frequency and the adaptive damping factor for an inhomogeneous model to eliminate the distortion in the traveltime contour. Two-dimensional numerical examples verify that the improved algorithm gives a much smaller traveltime error and a better traveltime contour for the complex model. Compared to the other two methods, this algorithm computes traveltime that is close to a directly transmitted wave. We demonstrate our algorithm on 2D IFP Marmousi models, and the numerical results show that our algorithm is a faster traveltime calculation method of a directly transmitted wave for imaging the subsurface and transmission tomography. |
| WOS关键词 | FINITE-DIFFERENCE CALCULATION ; MIGRATION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000229428300002 |
| 出版者 | GEOPHYSICAL PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64926]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Qin, YL |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Seoul Natl Univ, Sch Civil Urban & Geosyst Engn, Seoul 151742, South Korea |
| 推荐引用方式 GB/T 7714 | Qin, YL,Zhang, ZJ,Shin, CS. A robust and accurate traveltime calculation using a frequency-domain two-way wave-equation modeling algorithm[J]. JOURNAL OF SEISMIC EXPLORATION,2005,13(3):227-245. |
| APA | Qin, YL,Zhang, ZJ,&Shin, CS.(2005).A robust and accurate traveltime calculation using a frequency-domain two-way wave-equation modeling algorithm.JOURNAL OF SEISMIC EXPLORATION,13(3),227-245. |
| MLA | Qin, YL,et al."A robust and accurate traveltime calculation using a frequency-domain two-way wave-equation modeling algorithm".JOURNAL OF SEISMIC EXPLORATION 13.3(2005):227-245. |
入库方式： OAI收割
来源：地质与地球物理研究所
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