Laplace-Fourier-domain dispersion analysis of an average derivative optimal scheme for scalar-wave equation
文献类型：期刊论文
| 作者 | Chen, Jing-Bo |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2014-06-01 |
| 卷号 | 197期号:3页码:1681-1692 |
| 关键词 | Seismic tomography Computational seismology Wave propagation |
| ISSN号 | 0956-540X |
| DOI | 10.1093/gji/ggu066 |
| 英文摘要 | By using low-frequency components of the damped wavefield, Laplace-Fourier-domain full waveform inversion (FWI) can recover a long-wavelength velocity model from the original undamped seismic data lacking low-frequency information. Laplace-Fourier-domain modelling is an important foundation of Laplace-Fourier-domain FWI. Based on the numerical phase velocity and the numerical attenuation propagation velocity, a method for performing Laplace-Fourier-domain numerical dispersion analysis is developed in this paper. This method is applied to an average-derivative optimal scheme. The results show that within the relative error of 1 per cent, the Laplace-Fourier-domain average-derivative optimal scheme requires seven gridpoints per smallest wavelength and smallest pseudo-wavelength for both equal and unequal directional sampling intervals. In contrast, the classical five-point scheme requires 23 gridpoints per smallest wavelength and smallest pseudo-wavelength to achieve the same accuracy. Numerical experiments demonstrate the theoretical analysis. |
| 语种 | 英语 |
| WOS记录号 | WOS:000337041100031 |
| 出版者 | OXFORD UNIV PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85717]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Chen, Jing-Bo |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jing-Bo. Laplace-Fourier-domain dispersion analysis of an average derivative optimal scheme for scalar-wave equation[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2014,197(3):1681-1692. |
| APA | Chen, Jing-Bo.(2014).Laplace-Fourier-domain dispersion analysis of an average derivative optimal scheme for scalar-wave equation.GEOPHYSICAL JOURNAL INTERNATIONAL,197(3),1681-1692. |
| MLA | Chen, Jing-Bo."Laplace-Fourier-domain dispersion analysis of an average derivative optimal scheme for scalar-wave equation".GEOPHYSICAL JOURNAL INTERNATIONAL 197.3(2014):1681-1692. |
入库方式： OAI收割
来源：地质与地球物理研究所
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