Dispersion-relationship-preserving seismic modelling using the cross-rhombus stencil with the finite-difference coefficients solved by an over-determined linear system
文献类型：期刊论文
| 作者 | Chen, Guiting1,2,3; Wang, Yanfei1,2,3; Wang, Zhenli1,2; Zhang, Shuyang1,2 |
| 刊名 | GEOPHYSICAL PROSPECTING
 |
| 出版日期 | 2020-05-21 |
| 页码 | 22 |
| 关键词 | Acoustics Wave Numerical study |
| ISSN号 | 0016-8025 |
| DOI | 10.1111/1365-2478.12953 |
| 英文摘要 | Finite-difference modeling with a cross-rhombus stencil with high-order accuracy in both spatial and temporal derivatives is a potential method for efficient seismic simulation. The finite-difference coefficients determined by Taylor-series expansion usually preserve the dispersion property in a limited wavenumber range and fixed angles of propagation. To construct the dispersion-relationship-preserving scheme for satisfying high-wavenumber components and multiple angles, we expand the dispersion relation of the cross-rhombus stencil to an over-determined system and apply a regularization method to obtain the stable least-squares solution of the finite-difference coefficients. The new dispersion-relationship-preserving based scheme not only satisfies several designated wavenumbers but also has high-order accuracy in temporal discretization. The numerical analysis demonstrates that the new scheme possesses a better dispersion characteristic and more relaxed stability conditions compared with the Taylor-series expansion based methods. Seismic wave simulations for the homogeneous model and the Sigsbee model demonstrate that the new scheme yields small dispersion error and improves the accuracy of the forward modelling. |
| WOS关键词 | ACOUSTIC-WAVE-EQUATION ; TIME-SPACE DOMAIN ; ORDER ACCURACY ; SCHEMES ; PROPAGATION |
| 资助项目 | National Key R&D Program of The Ministry of Science and Technology of China[2018YFC1504203] ; National Key R&D Program of The Ministry of Science and Technology of China[2018YFC0603500] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000534355500001 |
| 出版者 | WILEY |
| 资助机构 | National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China ; National Key R&D Program of The Ministry of Science and Technology of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96696]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Wang, Yanfei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, 19 Beitucheng Xilu, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Guiting,Wang, Yanfei,Wang, Zhenli,et al. Dispersion-relationship-preserving seismic modelling using the cross-rhombus stencil with the finite-difference coefficients solved by an over-determined linear system[J]. GEOPHYSICAL PROSPECTING,2020:22. |
| APA | Chen, Guiting,Wang, Yanfei,Wang, Zhenli,&Zhang, Shuyang.(2020).Dispersion-relationship-preserving seismic modelling using the cross-rhombus stencil with the finite-difference coefficients solved by an over-determined linear system.GEOPHYSICAL PROSPECTING,22. |
| MLA | Chen, Guiting,et al."Dispersion-relationship-preserving seismic modelling using the cross-rhombus stencil with the finite-difference coefficients solved by an over-determined linear system".GEOPHYSICAL PROSPECTING (2020):22. |
入库方式： OAI收割
来源：地质与地球物理研究所
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