| 经验模式分解在QRS波群和T波检测中的应用 |
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| 引用本文： | 郭兴明,汤丽平,陈丽珊,陈毛毛.经验模式分解在QRS波群和T波检测中的应用[J].电子科技大学学报(社会科学版),2011(1). |
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| 作者姓名： | 郭兴明 汤丽平 陈丽珊 陈毛毛 |
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| 作者单位： | 重庆大学生物工程学院; |
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| 基金项目： | 教育部春晖计划(Z2004-1-55006); 中央高校基本科研业务费专项基金(CDJXS230010) |
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| 摘 要： | 针对未经预处理的心电信号中QRS波群和T波,提出一种基于经验模式分解的检测算法。该方法首先采用结合端点延拓的经验模式分解方法对信号进行分解,然后通过适当选择分解后的固有模态函数和残余分量,不使用经验阈值能得到准确的检测结果。利用MIT-BIH Arrhythmia Database中心电数据检测表明,QRS波群的检测率达到99%以上,T波的正确识别率也获得较大的提高。该算法中提出的端点延拓方法能有效地减少使用经验模式分解的次数,提高检测的实时性,具有较好的应用前景。
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| 关 键 词： | 经验模式分解 端点延拓 QRS波群 实时性 T波 |
Empirical Mode Decomposition for QRS Complexes and T Wave Detection |
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| GUO Xing-ming,TANG Li-ping,CHEN Li-shan, CHEN Mao-mao.Empirical Mode Decomposition for QRS Complexes and T Wave Detection[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2011(1). |
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| Authors: | GUO Xing-ming TANG Li-ping CHEN Li-shan CHEN Mao-mao |
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| Institution: | GUO Xing-ming,TANG Li-ping,CHEN Li-shan,and CHEN Mao-mao (College of Bioengineering,Chongqing University Shapingba Chongqing 400044) |
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| Abstract: | In order to detect the position of QRS and T wave in a non-preprocessed ECG signal,a combination method of the empirical mode decomposition(EMD) and morphological algorithm is introduced in this paper.Firstly,a novel boundary processing method is proposed to decrease the boundary distortion of EMD by means of signal extending.Secondly,the improved EMD is used to decompose the ECG signal into stationary intrinsic mode functions(IMFs) and residual components.Next,the two IMFs of low frequencies are reconstruc... |
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| Keywords: | empirical mode decomposition end extending QRS complexes real-time T wave |
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