Introduction - If you have any usage issues, please Google them yourself
Main elements: the use of the same impulse response digital low-pass filter design method bilinear Z-transform method based on digital filter design analog filter design based on Butterworth high-pass filter Butterworth analog filter design based on band-pass Butterworth filter 4.5 analog filter design based on digital band-stop filter 4.6 bilinear Z-transform method using a band-pass elliptic filter design