| 小波变换滤除心电信号基线漂移噪声的应用研究 |
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| 引用本文： | 聂希芸.小波变换滤除心电信号基线漂移噪声的应用研究[J].玉溪师范学院学报,2012(4):54-58. |
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| 作者姓名： | 聂希芸 |
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| 作者单位： | 玉溪师范学院信息技术工程学院 |
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| 摘 要： | 根据心电信号和基线漂移噪声的频谱特点,基于小波变换的多分辨率分析,对心电信号进行多尺度分解,利用分解后得到的模拟近似信号充分逼近基线漂移噪声的特性,从而去除心电信号中的基线漂移这一低频分量.通过对MIT-BIH心律失常数据库中的心电信号进行去噪处理,验证了算法的有效性.
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| 关 键 词： | 基线漂移 小波变换 多分辨率分析 Mallat算法 |
Removing Base Line Drifting Noise from Electrocardiosignal Through Wavelet Transforms |
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| NIE Xiyun.Removing Base Line Drifting Noise from Electrocardiosignal Through Wavelet Transforms[J].Journal of Yuxi Teachers' College,2012(4):54-58. |
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| Authors: | NIE Xiyun |
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| Institution: | NIE Xiyun(School of Information Technology and Engineering,Yuxi Normal University,Yuxi,Yunnan 653100) |
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| Abstract: | The base-line drift,a low frequency component,can be removed by using the simulated approximate signals obtained through decomposition of electrocardiosignal,which is separated according to the frequency spectrum of base line drifting noise and the electrocardiosignal on the basis of the multi-resolution analysis through wavelet transforms.The experiment of removing noise from the electrocardiosignals of MIT-BIH arrhythmia database proves the effectiveness of the method. |
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| Keywords: | base line drift wavelet transforms multiresolution analysis Mallat algorithm |
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