中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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