| 数字地磁信号的小波消噪处理 |
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| 引用本文： | 张平,山秀明,毛玉平,杨周胜. 数字地磁信号的小波消噪处理[J]. 地震研究, 2004, 27(2): 198-202 |
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| 作者姓名： | 张平 山秀明 毛玉平 杨周胜 |
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| 作者单位： | 清华大学电子工程系,北京,100084;云南省地震局,昆明,650041;清华大学电子工程系,北京,100084;云南省地震局,昆明,650041 |
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| 基金项目： | “十五”云南地震前兆台网建设项目资助 |
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| 摘 要： | 基于平稳随机过程的噪声模型，应用小波变换原理对数字化地磁观测资料进行高频噪声剔除，达到净化信号，又不丢失高频有用信息的目的。应用实例表明，小波方法具有良好的效果。
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| 关 键 词： | 噪声模型 数字地磁信号 小波变换 消噪 |
Application of Wavelet Transformation to Processing the Noise of Digital Geomagnetic Signals |
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| Zhang Ping , Shan Xiuming Mao Yuping Yang Zhousheng. Application of Wavelet Transformation to Processing the Noise of Digital Geomagnetic Signals[J]. Journal of Seismological Research, 2004, 27(2): 198-202 |
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| Authors: | Zhang Ping Shan Xiuming Mao Yuping Yang Zhousheng |
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| Affiliation: | Zhang Ping 1,2 Shan Xiuming 1 Mao Yuping 2 Yang Zhousheng 2 |
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| Abstract: | On the basis of noise model of smooth random process, using the wavelet transformation method, the high-frequency noises of digital geomagnetic data are eliminated.In this way, the geomagnetic signals are purified and the useful high-frequency information is preserved.The examples in this paper prove that wavelet transformation is very effective in noise elimination. |
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| Keywords: | noise model digital geomagnetic signals wavelet transformation noise elimination |
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