基于斜率突变的QRS波检测  

Detection algorithm of QRS wave based on slope mutation

作　　者：吴建[1] 李康[1] 庞宇[2] 庄晓蕾[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065 [2]重庆邮电大学光电工程学院,重庆400065

出　　处：《重庆邮电大学学报（自然科学版）》2015年第2期241-244,共4页Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition)

基　　金：国家自然科学基金(61471075);重庆邮电大学教改项目(XJG1426)~~

摘　　要：在心电信号的分析中,QRS波群快速准确地检测是计算其他相关参数的前提。在正确识别R波的前提下,对心电信号进行频域变换后,以R波点为基点,通过逐次计算R波左侧或右侧相邻两点的斜率并比较斜率是否发生突变,当相邻两点斜率突然发生变化时,可判断为Q波或S波。采用实时采集数据对以上算法进行验证,实验表明,该算法原理简单,计算量小,能够快速准确地检测心电信号数据中Q,S波的特征值。During the analysis process of electrocardiogram（ ECG） signal,the premise of calculating other relevant parameters in ECG is based on detection of QRS wave. In this paper,the ECG signal identifies R-wave correctly and transforms frequency domain on the left of R-wave or on the right of R-wave,and calculates the slope of adjacent points and compares whether there is a sudden change of the slope in turns. When sudden change of the slope occurs,we can conclude that the wave is Qwave or S-wave. The algorithm is validated by using the data. This experiment shows that the algorithm can firstly and efficiently detect the eigenvalue of Q-wave or S-wave in ECG database.

关 键 词：心电信号 QRS波 斜率突变 

分 类 号：TN432[电子电信—微电子学与固体电子学]