| 基于小波包收缩的心电信号除噪方法研究 |
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| 引用本文： | 赵治栋,潘敏,郭希山,陈裕泉. 基于小波包收缩的心电信号除噪方法研究[J]. 计算机工程与应用, 2002, 38(20): 19-22,26 |
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| 作者姓名： | 赵治栋 潘敏 郭希山 陈裕泉 |
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| 作者单位： | 浙江大学生物医学工程与仪器科学学院,杭州,310027 |
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| 基金项目： | 国家自然科学基金资助(编号:30070218)，浙江省自然科学基金资助(编号:600113) |
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| 摘 要： | 文章提出了一种新的基于小波包分析的心电信号的除噪方法。讨论了小波包收缩消噪的原理、阈值的选取以及阈值的量化规则。比较了选择不同的阈值以及不同的阈值量化规则对信号消噪的效果。结果表明基于小波包分析的小波包收缩除噪技术在保持信号奇异性的同时能有效的去除心电信号的噪声。
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| 关 键 词： | 小波收缩 小波包分析 消噪 心电信号 |
| 文章编号： | 1002-8331-(2002)20-0019-04 |
Denoising of Electrocardiogram Signal Using Wavelet Packet Shrinkage |
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| Zhao Zhidong Pan Min Guo Xishan Chen Yuquan. Denoising of Electrocardiogram Signal Using Wavelet Packet Shrinkage[J]. Computer Engineering and Applications, 2002, 38(20): 19-22,26 |
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| Authors: | Zhao Zhidong Pan Min Guo Xishan Chen Yuquan |
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| Abstract: | In this paper,a new denoising method-wavelet packet shrinkage is presented based on the wavelet packet analysis.the selection rules of thresholding value and the thresholding operations are analyzed.The principle of the wavelet packet shrinkage to reduce the noise is introduced.Using the electrocardiogram (ECG)signal as the example,the ECG signal with additive Gaussian noise was processed based on the wavelet packet shrinkage.The results are compared with different thresholding value and different thresholding operation.By analysis the meaningful denoising method to reduce the EGG signals is achieved. |
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| Keywords: | Wavelet shrinkage Wavelet packet analysis Denoising ECG |
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