| 二进小波变换方法的地震信号分时分频去噪处理 |
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| 引用本文： | 章珂,邹大文.二进小波变换方法的地震信号分时分频去噪处理[J].地球物理学报,1996,39(2):265-271. |
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| 作者姓名： | 章珂 邹大文 |
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| 作者单位： | 1. 西安交通大学电信学院信息工程研究所, 西安 71049;
2. 长庆石油勘探局地球物理勘探处, 吴忠 751104 |
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| 摘 要： | 应用二进小波变换理论，对地震记录剖面进行小波分解，在小波变换域，对各分量剖面进行分时分频相关分析，并依此进行加权处理，最后通过小波反交换算法恢复出地震记录剖面．经实验该方法对衰减地震信号的噪声具有比较好的效果．
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| 关 键 词： | 二进小波变换 相关分析 地震信号去噪方法 |
SEISMIC DATA TIME-FREQUENCY DOMAIN DENOISING BASED ON DYADIC WAVELET TRANSFORM |
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| ZHANG KE, LIU GUI-ZHONG.SEISMIC DATA TIME-FREQUENCY DOMAIN DENOISING BASED ON DYADIC WAVELET TRANSFORM[J].Chinese Journal of Geophysics,1996,39(2):265-271. |
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| Authors: | ZHANG KE LIU GUI-ZHONG |
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| Institution: | 1. Instiutute of Information Engineering, Collage of Electron and Information Engineering,Xi'an Jiaotong University, Xi'an 710049, China;
2. Department of Geophysical Prospecting, Bureau of Changqing Oil Prospecting, Wuzhong 751104, China |
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| Abstract: | A new method for seismic data denoising isproposed in this paper. We decomgose every trace of a seitmic section using dyadic wavelet transform, so several sub-sections are formed in time-frequency domain. To each sub-section a correlation analysis is made and every trace of each sub-section is weighted according to the analytic result. It is calied weighting denoising processing.From the sub-sections we recover the seismic section in which noise has been compressed. We also illustrate the performance of the method using real-world seismic data. |
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| Keywords: | Dyadic wavelet transform Correlation analysis Seismic data denoising |
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