Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
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

My requirements:

cutoff frequency: 20Hz

0.01 dB in band ripple

40 or 80 dB stop band attenuation

phase delay: as small as possible, at least not more than 20ms