Optimal staggered-grid finite-difference schemes based on weighted convolution combination window
文献类型：期刊论文
| 作者 | Li, Wen-Da1,2,3; Liu, Hong2,3; Meng, Xiao-hong2; Wang, Jian3; Gui, Sheng3 |
| 刊名 | EXPLORATION GEOPHYSICS
 |
| 出版日期 | 2020-10-28 |
| 页码 | 11 |
| 关键词 | Finite difference seismic exploration elastic 2D modelling |
| ISSN号 | 0812-3985 |
| DOI | 10.1080/08123985.2020.1838243 |
| 英文摘要 | Staggered-grid finite-difference (SFD) method has higher accuracy and stability than conventional method, so it is widely used in reverse time migration and full waveform inversion. However, due to the high dominant frequency and large grid interval, numerical dispersion is an inevitable problem. To suppress numerical dispersion, we first propose a weighted convolution combination window function for SFD, which is based on traditional binomial window function. Accuracy error analysis shows that the spectral coverage of new method far exceeds that of the Taylor-expansion SFD method, and the new method also has better spectral coverage and stability than the previous optimisation methods. Finally, we perform numerical forward modelling, which denotes that our method is superior than other optimum methods. From an economic point of view, this method will effectively reduce the computation cost and improve efficiency. |
| WOS关键词 | WAVE-PROPAGATION |
| 资助项目 | National Key Scientific Instrument and Equipment Development Project[2018YFF01013503] ; National Natural Science Foundation of China[41630319] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000589752000001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Key Scientific Instrument and Equipment Development Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98690]  |
| 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 | Li, Wen-Da |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Wen-Da,Liu, Hong,Meng, Xiao-hong,et al. Optimal staggered-grid finite-difference schemes based on weighted convolution combination window[J]. EXPLORATION GEOPHYSICS,2020:11. |
| APA | Li, Wen-Da,Liu, Hong,Meng, Xiao-hong,Wang, Jian,&Gui, Sheng.(2020).Optimal staggered-grid finite-difference schemes based on weighted convolution combination window.EXPLORATION GEOPHYSICS,11. |
| MLA | Li, Wen-Da,et al."Optimal staggered-grid finite-difference schemes based on weighted convolution combination window".EXPLORATION GEOPHYSICS (2020):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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