Born-series dispersion equations and Born-Kirchhoff propagators
文献类型：期刊论文
| 作者 | Fu Li-Yun |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2010-02-01 |
| 卷号 | 53期号:2页码:370-384 |
| 关键词 | Wave Propagation Born-series Approximation Born-series Dispersion Equations Born-kirchhoff Propagators Heterogeneous Media |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2010.02.015 |
| 英文摘要 | Conventional Kirchhoff propagators are conceptually simple and applicable for wave propagation in laterally homogeneous media. Ray-Kirchhoff propagators are kinematically acceptable in the range of seismic frequencies for heterogeneous medial but theoretically suffer congenital deficiencies. In this paper we present a natural way to extend the conventional Kirchhoff propagators to heterogeneous media. The so-called Born-Kirchhoff propagators are designed in the wavenumber domain under Born-series approximation to account for large-angle waves in strong-contrast media. These wavenumber-domain propagators that usually become singular at high wavenumbers can be transformed into the space domain, which are unconditionally stable with the Kirchhoff-summation implementation. Various orders of the Born-Kirchhoff propagators are formulated with a target-oriented flexibility to handle local complex zones for wave propagation, seismic imaging and velocity estimation. A complete accuracy analysis is conducted by Born-series dispersion equations to characterize the Born-Kirchhoff propagators' scale-dependence on wavelengths, propagation angles, and heterogeneities. Synthetic seismograms for a simple 2D model are calculated with the zeroth-order and first-order Born-Kirchhoff propagators in comparison with those generated by the boundary-element method. |
| 语种 | 英语 |
| WOS记录号 | WOS:000275093200015 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73050]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fu Li-Yun |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earths Deep Interior, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fu Li-Yun. Born-series dispersion equations and Born-Kirchhoff propagators[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2010,53(2):370-384. |
| APA | Fu Li-Yun.(2010).Born-series dispersion equations and Born-Kirchhoff propagators.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,53(2),370-384. |
| MLA | Fu Li-Yun."Born-series dispersion equations and Born-Kirchhoff propagators".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 53.2(2010):370-384. |
入库方式： OAI收割
来源：地质与地球物理研究所
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