数字信号课程设计，FIR的低通带通高通和IIR的低通带通高通滤波器的设计源程序以及主程序-Digital Signal curriculum design, FIR low-pass band-pass IIR high-pass and low-pass band-pass high-pass filter design, as well as the main program source code

iir filter32 at matlab and c++ we usd this filter at ECG application