本章讨论了许多目前已有的几种检测心电图QRS波的算法。文章的开始我们讨论了心电信号的功率谱，进而讨论了几种心电图QRS波检测算法。-This chapter discusses a few of the many techniques that have been eveloped to detect the QRS complex of the ECG. It begins with a discussion of the power spectrum of the ECG and goe