| 基于系数相关性阈值的波原子域叠前地震资料信噪分离方法 |
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| 引用本文： | 杨宁,贺振华,黄德济.基于系数相关性阈值的波原子域叠前地震资料信噪分离方法[J].石油地球物理勘探,2011(1):53-57,164,169,170. |
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| 作者姓名： | 杨宁 贺振华 黄德济 |
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| 作者单位： | 成都理工大学油气藏地质与开发工程国家重点实验室;成都理工大学信息工程学院; |
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| 基金项目： | 国家自然科学基金项目(40774064)资助 |
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| 摘 要： | 本文提出了基于波原子域的叠前地震资料信噪分离方法,首先在波原子域进行多尺度分解,然后根据能量集中原则,采用不同尺度间系数相关性分离有效信号和噪声。数值模拟及实际资料的处理表明,基于系数相关性阈值的波原子域叠前地震资料信噪分离方法可以有效压制随机噪声,同时能兼顾抑制部分相干噪声。处理后地震剖面的信噪比得到了大幅提高,反射同相轴更加连续,为后续的处理解释提供了高信噪比的数据。
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| 关 键 词： | 波原子变换 叠前地震资料 系数相关阈值 信噪分离 |
Signal and noise separation method for pre-stack seismic data in wave atomic domain based on coefficient correlation threshold |
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| Yang Ning,He Zhen-hua , Huang De-ji.State Key Lab of Reservoir Geology , Development Engineering,Chengdu University of Technology,Chengdu City,Sichuan Province,China.Signal and noise separation method for pre-stack seismic data in wave atomic domain based on coefficient correlation threshold[J].Oil Geophysical Prospecting,2011(1):53-57,164,169,170. |
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| Authors: | Yang Ning He Zhen-hua Huang De-jiState Key Lab of Reservoir Geology Development Engineering Chengdu University of Technology Chengdu City Sichuan Province China |
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| Affiliation: | Yang Ning1,He Zhen-hua2 and Huang De-ji21.State Key Lab of Reservoir Geology and Development Engineering,Chengdu University of Technology,Chengdu City,Sichuan Province,610059,China2.Institute of Information Engineering,China |
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| Abstract: | The signal-noise separation method for pre-stack seismic data in the wave atomic domain was proposed in this paper,at first the multi-scale decomposition was conducted in the wave atomic domain,then based on the energy concentration principle the coefficient correlation for the different scales were utilized to separate effective signal and the noise.The results of numerical simulation and field data processing indicate that the pre-stack seismic data signal-noise separation method which is based on the coe... |
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| Keywords: | coefficient correlation threshold wave atom signal-noise separation |
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