| 小波包F-X域前后向预测去噪 |
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| 引用本文： | 宗涛,孟鸿鹰,贾玉兰,刘贵忠.小波包F-X域前后向预测去噪[J].地球物理学报,1998,41(Z1):337-346. |
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| 作者姓名： | 宗涛 孟鸿鹰 贾玉兰 刘贵忠 |
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| 作者单位： | 西安交通大学电信学院信息与通信工程系, 西安 710049 |
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| 摘 要： | 小波包变换具有分时分频的特性，是非平稳信号分析处理的一个很好的工具本文将小波包的分时分频特性结合地震信号处理中的F-X域预测抑制噪声技术，提出了小波包F-X城前后向预测去噪方法实际应用结果表明，该方法对于叠后地震剖面的随机噪声抑制比较好，有很强的实用性
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| 关 键 词： | 去噪 时变信号 小波包变换 |
| 收稿时间： | 1997-01-14 |
DENOISING METHOD BASED ON WAVELET PACKET AND FORWARD-BACKWARD PREDICTION IN F-X DOMAIN |
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| ZONG TAO,MENG HONG-YING,JIA YU-LAN,LIU GUI-ZHONG.DENOISING METHOD BASED ON WAVELET PACKET AND FORWARD-BACKWARD PREDICTION IN F-X DOMAIN[J].Chinese Journal of Geophysics,1998,41(Z1):337-346. |
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| Authors: | ZONG TAO MENG HONG-YING JIA YU-LAN LIU GUI-ZHONG |
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| Institution: | Institute of Information Engineering, School of Electronics and Information Enginering Xi'an Jiaotong University, Xi'an 710049, China |
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| Abstract: | Possessing the capability of time-frequency localization, the wavelet Packet is a useful tool in the analysis of non-stationary signals. A new denoising method based on wavelet packet and forward-backward prediction in F-X domain is proal, which combines the denoising technology of prediction in F-X domain with the property of wavelet packet centralizing in local time-frequency domain. Practical application results show that this method is very efficient for random noise suppression in opt-stack profile. |
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| Keywords: | Denoising Time-varying signal Wavelet Packet transform |
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