how to design a low pass the filter, h1, cuttoff frequency=0.25 using a Kaiser window with suitable parameters (you have the liberty to choose the value of beta) to get a linear phase filter using fdatool. how to cater cutoff frequency in fdatool?

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subah
subah on 6 Oct 2013
Answered: Honglei Chen on 8 Oct 2013
What is Fc in fdatool. Whether it is cuttoff frequency wc. Fc is in Hz. while wc=.25pi. how to use .25pi for this design of filter.

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Answers (1)

Honglei Chen
Honglei Chen on 8 Oct 2013
To translate the angular frequency to nominal frequency, you just need to know that the sampling rate corresponds to 2*pi, so
wc = Fc/Fs*(2*pi)

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