An efficient ray-tracing method and its application to Gaussian beam migration in complex multilayered anisotropic media
文献类型：期刊论文
| 作者 | Mao, Weijian1; Xu, Qianru1,2 |
| 刊名 | GEOPHYSICS
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 83期号:5页码:T281-T289 |
| ISSN号 | 0016-8033 |
| DOI | 10.1190/GEO2017-0402.1 |
| 英文摘要 | We have developed a fast ray-tracing method for multiple layered inhomogeneous anisotropic media, based on the generalized Snell's law. Realistic geologic structures continuously varying with embedded discontinuities are parameterized by adopting cubic B-splines with nonuniformly spaced nodes. Because the anisotropic characteristic is often closely related to the interface configuration, this model parameterization scheme containing the natural inclination of the corresponding layer is particularly suitable for tilted transverse isotropic models whose symmetry axis is generally perpendicular to the direction of the layers. With this model parameterization, the first-and second-order spatial derivatives of the velocity within the interfaces can be effectively obtained, which facilitates the amplitude computation in dynamic ray tracing. By using complex initial conditions for the dynamic ray system and taking the multipath effect into consideration, our method is applicable to Gaussian beam migration. Numerical experiments of our method have been used to verify its effectiveness, practicability, and efficiency in memory storage and computation. |
| 资助项目 | State Key Research Development Program of China[2016YFC0601101] ; National Science Foundation of China[U1562216] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000453050000013 |
| 出版者 | SOC EXPLORATION GEOPHYSICISTS |
| 源URL | [http://202.127.146.157/handle/2RYDP1HH/6369]  |
| 专题 | 中国科学院武汉植物园 |
| 通讯作者 | Xu, Qianru |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geodesy & Geophys, Ctr Computat & Explorat Geophys, State Key Lab Geodesy & Earths Dynam, Wuhan, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mao, Weijian,Xu, Qianru. An efficient ray-tracing method and its application to Gaussian beam migration in complex multilayered anisotropic media[J]. GEOPHYSICS,2018,83(5):T281-T289. |
| APA | Mao, Weijian,&Xu, Qianru.(2018).An efficient ray-tracing method and its application to Gaussian beam migration in complex multilayered anisotropic media.GEOPHYSICS,83(5),T281-T289. |
| MLA | Mao, Weijian,et al."An efficient ray-tracing method and its application to Gaussian beam migration in complex multilayered anisotropic media".GEOPHYSICS 83.5(2018):T281-T289. |
入库方式： OAI收割
来源：武汉植物园
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