One-way propagators coupled with reflection/transmission coefficients for seismogram synthesis in complex media
文献类型：期刊论文
| 作者 | Sun Wei-Jia1; Fu Li-Yun1; Yao Zhen-Xing |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2009-10-01 |
| 卷号 | 52期号:10页码:2558-2565 |
| 关键词 | One-way integral equation Separation-of-variables approximations One-return approximations Reflection/transmission coefficients Seismic modelling |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2009.10.014 |
| 文献子类 | Article |
| 英文摘要 | The one-way and one-return approximation is a multiple-forescattering-single-backscattering (MFSB) approximation. Compared with the full-waveform numerical methods, one-way approximation leads to a great saving of computing time and memory, which makes it possible to modelling wave propagation in long distances. In this article, we combine both the one-return and separation-of-variables approximations to develop a new one-way propagator Coupled with reflection/transmission (R/T) coefficients for seismogram synthesis in complex media. The method is derived from establishing simultaneous generalized Lippmann-Schwinger equations in two adjoining heterogeneous layers followed by the separation-of-variables and one-return approximations. The resulting one-way propagator consists of two parts: the separation-of-variables screen propagator and the R/T operators that account for amplitude variations with incident angles across interfaces. The separation-of-variables screen propagator for one-way wave propagation accounts for wide angles in large-contrast media. The R/T coefficients are the implicit function of dip angle of geology subsurface, whose calculation is coupled with one-way propagation simulation in a natural manner. We benchmark the presented method against the full-waveform boundary element ( BE) method for two numerical examples and a real geology structure, which shows that the presented method simulate the reflected waves well in travel time, amplitude. and waveform for various velocity contrasts across interfaces. |
| WOS关键词 | FOURIER MIGRATION ; INTEGRAL-EQUATION ; WAVE-EQUATION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000271403300014 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70972]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Sun Wei-Jia |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun Wei-Jia,Fu Li-Yun,Yao Zhen-Xing. One-way propagators coupled with reflection/transmission coefficients for seismogram synthesis in complex media[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(10):2558-2565. |
| APA | Sun Wei-Jia,Fu Li-Yun,&Yao Zhen-Xing.(2009).One-way propagators coupled with reflection/transmission coefficients for seismogram synthesis in complex media.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(10),2558-2565. |
| MLA | Sun Wei-Jia,et al."One-way propagators coupled with reflection/transmission coefficients for seismogram synthesis in complex media".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.10(2009):2558-2565. |
入库方式： OAI收割
来源：地质与地球物理研究所
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