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Altera_Forum's avatar
Altera_Forum
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15 years ago

how to design a low pass digital filter with smallest delay

Hello, All I want to design a digital filter with the cutoff frequency 20Hz. The sampling frequency of my acquiring system is very high, up to 8192 Hz. The important requirement is the de...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

hmm interesting, i used 20 Hz as the transition band not the fstop (number of taps should be proportional to the transition band over sampling frequency and not dependant on the actual fstop). apparently that doesn't hold as fstop approaches 0