计算机工程与应用 ›› 2011, Vol. 47 ›› Issue (12): 239-241.

• 工程与应用 • 上一篇    下一篇

小波滤波与QRS波检测

杨思军,郝继飞,闫文杰,丁小平   

  1. 中国矿业大学 信息与电气工程学院,江苏 徐州 221008
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-04-21 发布日期:2011-04-21

Wave flitering and QRS detection

YANG Sijun,HAO Jifei,YAN Wenjie,DING Xiaoping   

  1. Department of Information and Electrical Engineering,China University of Mining and Technology,Xuzhou,Jiangsu 221008,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-04-21 Published:2011-04-21

摘要: 利用双正交样条小波等效滤波器,实现了ECG信号的小波分解和重建。分析心电信号奇异点与其小波变换模极大值对的零交叉点的关系,提出了心电信号QRS波检测的算法。在检测算法中还使用了一系列策略来提高算法的抗干扰能力和QRS检测的准确性。经MIT/BIH心律失常数据库验证,QRS波的正确检测率达99.506%。最后将该算法应用到Windows Mobile智能手机上的心电监护系统中,达到令人满意的效果。

关键词: 双正交样条小波, 心电信号, QRS波检测

Abstract: ECG signal’s decomposer and reconstruction have been achieved by using a biorthogonal filter bank based on quadratic spline wavelet.Analyzing the relationship between the signal singularity and the zero-crossing point of the modulus maximum pair of its wavelet transform,QRS complexes detected arithmetic is proposed.Some strategies are applied to improve the arithmetic anti-jamming ability against noise and to increase the QRS detection veracity.The correctness of QRS complexes detection rate can be up to 99.506%,which has been validated by MIT/BIH ECG signal database.Finally,this arithmetic is applied to the ECG monitoring system based on the Windows Mobile smart phones and achieves satisfactory results.

Key words: biorthogonal spline wavelet, electro-cardiograph signal, QRS complex detection