My project is The Development of Band-stop Filter for Vibration Control Using PIC(dsPIC now, since PIC is not able to handle the algorithms) Microcontroller. The Band-stop filter is used to...

Hi, the band-stop filter is Butterworth type. And yeah, it's constant. The band-stop filter needs to filter two peak values, so two butterworth filters with different parameters are needed. [b,a]...