| 心电信号的非线性小波检测方法 |
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| 引用本文： | 张乐平,杜德洁,雷长海,朱志年.心电信号的非线性小波检测方法[J].医疗卫生装备,2004,25(4):13-14. |
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| 作者姓名： | 张乐平 杜德洁 雷长海 朱志年 |
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| 作者单位： | 第二军医大学,上海市,200433 |
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| 摘 要： | 将非线性小波方法应用于心电信号的检测。利用二进Daubechies小波对有高频噪声干扰的心电信号按Mallat算法进行小波分解;探讨了非线性小波检测方法;结合Lipschitz指数判据,将其应用于高频干扰心电信号的去噪,实现了滤除噪声的同时又有效地恢复了心电信号。
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| 关 键 词： | 心电信号 小波变换 Mallat算法 非线性 |
| 文章编号： | 1003-8868(2004)04-0013-02 |
| 修稿时间： | 2003年7月19日 |
Nonlinear detection method of ECG using wavelet transform |
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| ZHANG Le-ping,DU De-jie,LEI Chang-hai,ZHU Zhi-nian.Nonlinear detection method of ECG using wavelet transform[J].Chinese Medical Equipment Journal,2004,25(4):13-14. |
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| Authors: | ZHANG Le-ping DU De-jie LEI Chang-hai ZHU Zhi-nian |
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| Abstract: | The nonlinear wavelet method is used to detect ECG signal. The ECG signal disrupted by high-frequency noise is decomposed with a dyadic Daubechies wavelet according to Mallat algorithm. The principle of the nonlinear wavelet detection method is discussed. Along with the Lipschitz criterion, it is applied to denoising the disrupted ECG signal. The ECG signal is effectively recovered while denoised. |
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| Keywords: | ECG wavelet transform Mallat algorithm nonlinear |
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