A wave propagation method in local angle domain
文献类型：期刊论文
| 作者 | Gao Jing-Huai; Zhou Yan-Hui; Mao Jian; Chen Wen-Chao; Wu Ru-Shan; Li You-Ming |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007 |
| 卷号 | 50期号:1页码:248-259 |
| 关键词 | one-way propagation Gabor-Daubechies frame inhomogeneous media local angle domain marching algorithm |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | A phase-space (local angle domain) marching algorithm of wave propagation is proposed in the general frame case, based on the wave equation for inhomogeneous media. The approach presents more freedom when choosing frame or orthogonal basis of one-way wave marching algorithm. Employing the Gabor-Daubechies tight frame which does not van, with frequency and depth but has the characteristic of scale-variability, the specific expression of one-way wave propagator and corresponding marching algorithm of wave field are derived. The high-frequency asymptotic expansion of the propagator based on Gabor-Daubechies tight frame is discussed in detail. Consequently the approximate analytic representation of the propagator in the situation of high-frequency and a small step size is obtained and its validity conditions are provided. The results of wave propagation using the accurate propagator and the high-frequency asymptotic one are compared for several heterogeneous models, which demonstrate that the wave fields are almost the same in certain conditions. |
| WOS关键词 | PHASE-SPACE ; EQUATION ; FIELDS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000244338300031 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68296]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Gao Jing-Huai |
| 作者单位 | 1.Xian Jiaotong Univ, Inst Wave & Informat, Xian 710049, Peoples R China 2.Univ Calif Santa Cruz, Ctr Study Image & Dynam Earth, Modeling & Imaging Lab, Santa Cruz, CA 95064 USA 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao Jing-Huai,Zhou Yan-Hui,Mao Jian,et al. A wave propagation method in local angle domain[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2007,50(1):248-259. |
| APA | Gao Jing-Huai,Zhou Yan-Hui,Mao Jian,Chen Wen-Chao,Wu Ru-Shan,&Li You-Ming.(2007).A wave propagation method in local angle domain.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(1),248-259. |
| MLA | Gao Jing-Huai,et al."A wave propagation method in local angle domain".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.1(2007):248-259. |
入库方式： OAI收割
来源：地质与地球物理研究所
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