The application of staggered-grid Fourier pseudospectral differentiation operator in wavefield modeling
文献类型：期刊论文
| 作者 | Long Gui-Hua1,2; Li Xiao-Fan1; Zhang Mei-Gen1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:1页码:193-199 |
| 关键词 | Pseudospectral differentiation operator Wavefield modeling Staggered-grid Fourier pseudospectral method |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | Based on traditional Fourier differentiation matrix and sonic modifications of the original differentiation operator, this paper refers to a new kind of method-staggered-grid Fourier pseudospectral differentiation operator. The staggered-grid strategy proposed in this paper, though a little more time-consuming than the traditional method, greatly improves the accuracy and stability of the computing process. And the thought of converting the traditional fast Fourier transform into matrix vector multiplication, at the same time, reduces the complexity of the difference, which then makes them more easily to be treated. A comparison with the analytic result for vertical displacement in homogeneous medium demonstrates that the staggered-grid differentiation operator almost achieves as the same accuracy as the analytic method. The application of this method in homogeneous layered media also shows high accuracy and robust stability. These attractive properties of this method make it an effective modeling method for seismic wave propagation in homogeneous layered media. |
| WOS关键词 | FINITE-DIFFERENCES ; DIFFERENCE METHOD ; PROPAGATION ; EQUATIONS ; MEDIA |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000262974800021 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/71490]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Long Gui-Hua |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Long Gui-Hua,Li Xiao-Fan,Zhang Mei-Gen. The application of staggered-grid Fourier pseudospectral differentiation operator in wavefield modeling[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(1):193-199. |
| APA | Long Gui-Hua,Li Xiao-Fan,&Zhang Mei-Gen.(2009).The application of staggered-grid Fourier pseudospectral differentiation operator in wavefield modeling.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(1),193-199. |
| MLA | Long Gui-Hua,et al."The application of staggered-grid Fourier pseudospectral differentiation operator in wavefield modeling".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.1(2009):193-199. |
入库方式： OAI收割
来源：地质与地球物理研究所
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