心电信号零相位数字滤波  

ECG Signal Processing with Zero-Phase Digital Filtering

作　　者：朱洪俊[1] 

机构地区：[1]西南科技大学制造科学与工程学院,四川绵阳621002

出　　处：《北京生物医学工程》2003年第4期260-262,共3页Beijing Biomedical Engineering

摘　　要：分析了零相位数字滤波的原理 ,通过对实测心电信号中 5 0Hz工频干扰的抑制结果表明 ,该方法对心电信号的滤波性能优于普通数字滤波方法 ,特别是对心电信号中QRS波群具有更好的滤波效果 ,在心电信号的处理。The principles of zero phase digital filtering were discussed. By using the method introduced in this paper, the 50Hz power line interference with practically measured ECG signal was reduced. Some examples are presented, which can demonstrate the superiority of the method introduced in this paper. For ECG signal, the filtering capability of this method is more excellent than that of the ordinary Digital Filtering methods, especially for the QRS complexes of ECG signal. The method is very valuable for applications in ECG signal processing, analysis and automatic recognition.

关 键 词：心电信号 零相位 数字滤波 自动识别 QRS波群 工频干扰 

分 类 号：R318.04[医药卫生—生物医学工程] R540.41[医药卫生—基础医学]