Application of Wavelet to the Cancellation of ECG Interference in Diaphragmatic EMG

FONT face; Verdana; XIE Yan-jiang; YANG Zhi; FAN Zheng-ping; LUO Yuan-ming; FONT

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Application of Wavelet to the Cancellation of ECG Interference in Diaphragmatic EMG

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- Application of Wavelet to the Cancellation of ECG Interference in Diaphragmatic EMG
- Acta Electronica Sinica Vol. 38, Issue 2, Pages: 366-370(2010)
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  CLC： TP24
- Published：2010
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FONT face, Verdana, XIE Yan-jiang, et al. Application of Wavelet to the Cancellation of ECG Interference in Diaphragmatic EMG[J]. Acta Electronica Sinica, 2010, 38(2): 366-370.
DOI：

FONT face, Verdana, XIE Yan-jiang, et al. Application of Wavelet to the Cancellation of ECG Interference in Diaphragmatic EMG[J]. Acta Electronica Sinica, 2010, 38(2): 366-370. DOI：

摘要

<FONT face=Verdana>膈肌肌电图信号是微弱的人体生物电信号

该信号往往受到被测对象自身心电图信号的严重干扰.本文应用小波变换的分析方法

提出了一种心电定位和小波阈值相结合的去心电新算法.该方法在对信号各层小波系数分析的基础上

通过小波相关系数法确定心电干扰的位置和范围

并用绝对值均值的阈值算法对该范围内的小波系数进行阈值处理.实验结果表明

该方法能够有效去除膈肌肌电图信号中的心电干扰

并较好地保留了膈肌肌电图信号的信号特征

为膈肌肌电图信号用于呼吸疾病的分析诊断创造良好的条件.

Abstract

<FONT face=Verdana>signal processing; wavelet transform; diaphragmatic electromyographic signals; electrocardiography interference

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