| 基于广义S变换研究地震地层特征 |
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| 引用本文： | 刘喜武,刘洪,李幼铭,年静波.基于广义S变换研究地震地层特征[J].地球物理学进展,2006,21(2):440-451. |
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| 作者姓名： | 刘喜武 刘洪 李幼铭 年静波 |
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| 作者单位： | 1. 中国海洋大学海洋地球科学学院,青岛,266003
2. 中国科学院地质与地球物理研究所,北京,100029 |
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| 基金项目： | 中国科学院知识创新重大项目“环渤海(湾)地区前新生代海相油气资源研究”(KZCX1-SW-18)资助 |
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| 摘 要： | 将S变换引入到地震地层研究中,用广义S变换代替短时Fourier变换或连续小波变换,用于地震数据频谱分解和提取地震旋回特征.为此,首先研究了S变换的性质及其与短时Fourier变换、连续小波变换的比较,进一步给出广义S变换的特点,说明其如何获得更高分辨率.同时,对前述方法进行数值实现,模型数据试算结果表明算法的正确和有效性.在上述工作基础上,本文首次提出用广义S变换进行地震频谱分解和研究地震旋回,给出实现策略及2D实际地震数据试算结果,证明方法的有效性,为进一步实用化奠定理论和方法基础.
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| 关 键 词： | S变换 广义S变换 地震地层 频谱分解 沉积旋回 |
| 文章编号： | 1004-2903（2006）02-0440-12 |
| 收稿时间： | 2005-05-27 |
| 修稿时间： | 2005-08-20 |
Study on characteristics of seismic stratigraphy by generalized S-transform |
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| LIU Xi-wu,LIU Hong,LI You-ming,NIAN Jing-bo.Study on characteristics of seismic stratigraphy by generalized S-transform[J].Progress in Geophysics,2006,21(2):440-451. |
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| Authors: | LIU Xi-wu LIU Hong LI You-ming NIAN Jing-bo |
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| Institution: | 1. School of Marine Geo-science, Ocean University of China , Qingdao 266003, China ;2.Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
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| Abstract: | In this paper,the S transform is introduced into the study of seismic stratigraphy by substituting the STFT or CWT with generalized S transform.Firstly,the properties of S transform and its comparisons to STFT and CWT are studied,and then the generalized S transform(GST) and the reasons of its high resolution are derived.With modeling seismic signal,the numerical methods of them are implemented,which show the validity.On base of the results,GST is applied to seismic spectral decomposition and seismic sequence cycles analysis originally.By the proposed schemes,good results have been gained for real 2D seismic data,which show that the method is valid and establishes a base for further actual application to oil industry. |
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| Keywords: | S-transform generalized S-transform seismic stratigraphy spectral decomposition sedimentary cycle |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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