| 一种改进的多次小波变换地震信号去噪方法 |
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| 引用本文： | 徐维秀,岳继光,段卫星.一种改进的多次小波变换地震信号去噪方法[J].油气地球物理,2007,5(2):11-15. |
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| 作者姓名： | 徐维秀 岳继光 段卫星 |
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| 作者单位： | [1]同济大学控制科学与工程系 [2]胜利石油管理局物探公司,257100 |
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| 摘 要： | 根据小波变换下信号和噪声在多尺度空间中的不同特性,对不同尺度下的小波系数用阈值处理,改进了多次小波变换应用于地震信号去噪的方法。数据仿真和实际应用表明,该方法可以有效压制随机噪声,对提高地震记录信噪比和分辨率都有较好的效果。
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| 关 键 词： | 多次小波变换 阈值 地震信号去噪 |
| 修稿时间： | 2006-10-13 |
An improved method of seismic signal denoising on multi-wavelet transform |
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| XU Wei-xiu.An improved method of seismic signal denoising on multi-wavelet transform[J].Petroleum Geophysics,2007,5(2):11-15. |
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| Authors: | XU Wei-xiu |
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| Abstract: | Based on the different feature between signal and noise on the multi-measure domain in wavelet transform, processing the wavelet coefficients in the different measures with thresholds filter, multi-wavelet transform can remove the noise without losing the original signals. The method provided is proved to be effective in improving the signal to noise ratio and enhancing the resolution of seismic data by data simulation and practical seismic data processing. |
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| Keywords: | multi-wavelet transform threshold filter and seismic data denoising |
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