Globally optimized Fourier finite-difference operator using simulated annealing algorithm based on multi-parameter
文献类型：期刊论文
| 作者 | Zhu Sue-Wei; Zhang Jin-Hai; Yao Zhen-Xing |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2008-11-01 |
| 卷号 | 51期号:6页码:1844-1850 |
| 关键词 | Fourier finite-difference Multi-parameter Simulated annealing Global optimization Alternative-direction-implicit plus interpolation |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | Fourier finite-difference(FFD) method can handle wave propagations in the complex media with large lateral velocity contrasts and wide propagation angles. However. the FFD method has obvious error for wider angles. The optimization method can Obviously improve the image accuracy of wider angles without additional computational cost. Based on the rational approximation of the FFD operator, we extend the two coefficients to be optimized to four coefficients, then we optimize them globally using simulated annealing algorithm. Besides the velocity contrast. we consider the effects of both frequency and depth interval. The theoretical analyses and the Impulse responses demonstrate that our method significantly extends the accurate propagation angle of the FFD method. Migration results on the 2D SEG/EAGE salt model show that our method resolves the wider angles and the sub-salt weak reflectors more accurately than the unoptimized FFD method. Combination of the FFD method and alternative-direction-implicit plus interpolation method on 3D impulse responses further proved the validity of our method. |
| WOS关键词 | PLUS INTERPOLATION ; WAVE ; MIGRATION ; EXTRAPOLATION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000261313500026 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/70126]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhu Sue-Wei |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu Sue-Wei,Zhang Jin-Hai,Yao Zhen-Xing. Globally optimized Fourier finite-difference operator using simulated annealing algorithm based on multi-parameter[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2008,51(6):1844-1850. |
| APA | Zhu Sue-Wei,Zhang Jin-Hai,&Yao Zhen-Xing.(2008).Globally optimized Fourier finite-difference operator using simulated annealing algorithm based on multi-parameter.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,51(6),1844-1850. |
| MLA | Zhu Sue-Wei,et al."Globally optimized Fourier finite-difference operator using simulated annealing algorithm based on multi-parameter".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 51.6(2008):1844-1850. |
入库方式： OAI收割
来源：地质与地球物理研究所
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