基于三次B-样条小波自适应阈值的QRS波检测  

QRS complexes detection based on 3-order B-Spline and self-adaptation threshold

作　　者：宋蓝天[1] 于凤芹[1] 

机构地区：[1]江南大学通信与控制学院,无锡214122

出　　处：《电子测量技术》2010年第2期60-62,74,共4页Electronic Measurement Technology

摘　　要：小波变换已经广泛应用于QRS波的检测,并达到了很高的检测率。本文针对目前检测方法的不足,选取了滤波器个数较少的三次样条小波作为小波基并结合自适应阈值的方法检测模极大值点以提高检测速度。在MIT-BIH数据库中验证,表明该方法能有效检出含有严重基线漂移和工频干扰的心电信号,检测率达到99.8%以上。检测速度也优于多种检测方法,有良好的实时效果。The wavelet transform has been widely used in the detection of QRS complexes and reached high detection rate. Aiming at the defects of different approaches,we choose 3-order B-Spline wavelet as mother wavelet which filter has a small quantity of coefficient and combines the self-adaptation threshold method to improve the detection speed. Testifying results in the MIT-BIH database improves that this approach could detect the ECG signals with high noise and base-line drift, the detection rate reached more than 99.8%. The detection speed is better than many other detection approaches and has a good real time effect.

关 键 词：三次B-样条小波 自适应阈值 QRS波检测 

分 类 号：TP318[自动化与计算机技术—计算机软件与理论]