pavel47
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Hello,
Bessel filters is know by its good phase characteristics: in passband phase is proportional to frequency, so group delay (which is derivative of phase with respect to frequency) is constant.
But is there some formula that calculates exactly the group delay based on filter parameters:
Pavel
Bessel filters is know by its good phase characteristics: in passband phase is proportional to frequency, so group delay (which is derivative of phase with respect to frequency) is constant.
But is there some formula that calculates exactly the group delay based on filter parameters:
- cut-off frequency
- filter order
Pavel