Research of multiple elimination method in inverse wavelet domain
文献类型：期刊论文
| 作者 | Jin De-Gang; Chang Xu; Liu Yi-Ke |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2008 |
| 卷号 | 51期号:1页码:250-259 |
| 关键词 | SRMA inverse wavelet domain Gauss distribution correlation coefficient orthogonality |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | SRMA (Surface Related Multiple Attenuation) algorithm has two steps including prediction and subtraction. In subtraction, it is very important to attenuate multiple events effectively and preserve primary events under the situation when multiple events cross with or overlap on primary. Under some reasonable hypothetic conditions, the error of inverse wavelet which is caused by non-orthogonality is nearly Gauss distribution. Based on the conclusion, we adopt a new method to eliminate multiples, which is to use the statistic character of error, obtain inverse wavelet's estimation, correct misshaped inverse wavelets for non-orthogonality in inverse wavelet domain by the estimation. The method mainly has four steps. Firstly, after getting predicted multiples, we use adaptive subtraction algorithm to eliminate multiples and get some inverse wavelets corresponding to every trace in one shot gather, then construct inverse wavelets domain by those inverse wavelets. Secondly, use median filtering method to get inverse wavelet estimation in inverse domain. Thirdly, correct the misshaped inverse wavelets in inverse domain by the inverse wavelet estimation. Finally, use new corrected inverse wavelets as new filters to eliminate multiples. It is proved that the method is valid and can keep continuation and amplitude of the primaries after simple and complex model testing. |
| WOS关键词 | INDEPENDENT COMPONENT ANALYSIS ; POINT CFP APPROACH ; ITERATIVE INVERSION ; INTERNAL MULTIPLES ; SUBTRACTION ; SCATTERING ; REMOVAL ; EXAMPLES |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000252841900031 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68824]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Jin De-Gang |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin De-Gang,Chang Xu,Liu Yi-Ke. Research of multiple elimination method in inverse wavelet domain[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2008,51(1):250-259. |
| APA | Jin De-Gang,Chang Xu,&Liu Yi-Ke.(2008).Research of multiple elimination method in inverse wavelet domain.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,51(1),250-259. |
| MLA | Jin De-Gang,et al."Research of multiple elimination method in inverse wavelet domain".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 51.1(2008):250-259. |
入库方式： OAI收割
来源：地质与地球物理研究所
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