心电信号的预处理滤波器的设计（包括数据文件和程序） 包括了FIR滤波器和IIR滤波器以及整系数滤波器，可以有效滤除基线漂移与工频干扰-ECG preprocessing filter design (including data files and programs) including FIR filter and IIR filters, and the whole coefficient filter can effectively filter out baseline drift and frequency interference