中文说明：是对ECG数据库的ECG原始数据的处理，得到mat 格式的ECG信号数据，matlab代码,可用于基于ECG信号的身份识别的第一步，即对原始ECG信号的处理，生成mat格式的文件，用于后续的操作。
English Description：
The ECG database of original ECG data processing is that of mat format ECG signal data, matlab code, based on the first step of ECG signal identification, that is, the original ECG signal processing, generation of mat format file for, for subsequent operations.