心电信号中QRS波群的实时检测算法

Algorithm for Real-time Detection of QRS Comples in ECG Signal

在心电图（ＥＣＧ）数据实时监测中，应用ＱＲＳ综合波检测（ＱＲＳｄｅｔｅｃｔｉｏｎ）算法对心率进行实时计算。首先对ＥＣＧ信号进行数字滤波，提高信噪比，然后抽取ＥＣＧ信号的斜率、幅度等信息，通过自学习过程确定多个判据来实现ＱＲＳ综合波的精确检测。本算法应用于ＧＫＤ一４０５Ａ多导智能分析仪中，实时计算心率，临床上取得了满意的结果，为心律失常分析奠定了基础。

A real- time detection algorithm for QRS complex was recommended.ECG signal was filt-ed by bandpass filter, and then moving window integral was made,Several features(such as slope andamplitude) were extracted,Adaptive amplitude thresholds were employed to make final determinationwhther the detected event is a QRS complex。 This algorithm has been used in a microcomputer一based medical instrumantation-Intelligent Multichannel Analyser(model GKD 一450A),to make real～time measurement and to display patient’s heart rate.