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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

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sure its possible with 81 taps

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Depends on your definition of "possible". It can't implement a cut-off frequency of 20 Hz even if you accept any band ripple or attenuation. If you don't see why, try with a filter tool, e.g. Quartus FIR compiler.