做ECG的可以看一下，一个自适应实时变门限的QRS波形检测算法，根据国外一篇经典的文献编写的，有一定实用价值-ECG can be done to look at a real-time variable adaptive threshold QRS wave detection algorithm, according to a foreign classic literature written in a certain practical value

心电信号QRS复波实时检测代码及界面，使用QRS复波检测算法检测QRS复波-Code and interface, real-time detection of ECG QRS complex wave QRS complex wave detection algorithm to detect QRS complex wave

pan tompkins算法，用于检测心电图图谱中的QRS波的数量(QRS detection algorithm)