Forum Discussion
Altera_Forum
Honored Contributor
18 years agoPeriodic artifacts on output of IIR Filter
Hi, I'm trying to create a 2nd order IIR filter based on a Direct Form I biquad. I've implemented a LP filter at 1000 Hz with pre-calculated butterworth co-efficients. The filter works, but i c...
Altera_Forum
Honored Contributor
18 years agoMake sure results(63 downto 48) are either all F's or all 0's. If not, you have a problem.