m文件
.....\fir_design_.m
.....\iir_filter.m
.....\iir_highpass.m
.....\window_function.m
结果图
......\fir_bandpass.jpg
......\fir_highpass.jpg
......\fir_lowpass.jpg
......\iir_highpass.jpg
......\iir_lowpass_b.jpg
......\iir_lowpass_ty.jpg
......\window0.jpg
......\window1.jpg