hobiedude
10-13-2006, 11:16 AM
Has anyone had any success with the bandpass filter example in section 12.9? I implemented the coefficients as shown and when trying to filter my data the output diverges within 10-15 data points. I mean it oscillates at every step between ever-increasing positive and negative values until the magnitude gets too large.
I can see how equation 12.8.11 comes about, but the jump to 12.9.12 is beyond my abilities.
Is there anything about the coefficient's values in a IIR filter that can be used as a sanity check? :eek:
Thanks
Bill
I can see how equation 12.8.11 comes about, but the jump to 12.9.12 is beyond my abilities.
Is there anything about the coefficient's values in a IIR filter that can be used as a sanity check? :eek:
Thanks
Bill