Plotting frequency response from fdatool filter coefficients?
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Dick Rusell
on 18 Oct 2014
Commented: Star Strider
on 18 Oct 2014
I created a 400 order bandpass fir filter using fdatool and exported the coefficients. How do I create the frequency response using the coefficients I just made?
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Star Strider
on 18 Oct 2014
Edited: Star Strider
on 18 Oct 2014
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Star Strider
on 18 Oct 2014
That would work, with ‘omega’ being a vector of normalised frequencies, giving you the frequency response at those frequencies in ‘Hd’. Note that ‘Hd’ is a complex frequency vector, so you can calculate both amplitude and phase from it.
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