心电数据的滤波代码,已经调试通过,可以滤出工频干扰,基线飘移-Ecg data filtering code, has been debugging through, can filter out to work frequency interference and baseline drift

里面包含eeg的预处理过程，去心电、滤波。重设参考、降采样率、ICA的步骤(Which contains the pretreatment process of EEG, ECG and filter. Reset reference, sample rate, and ICA steps)

心电qrs波检测，峰值检测还有些滤波，数据可能不太好(ECG QRS wave detection, peak detection is also filtering, data may not be good.)