This was the first experiment wherein we used scilab. In this experiment we gave pass band attenuation (Ap), stop band attenuation (As), pass band frequency (Fp), stop band frequency (Fs) and sampling frequency as inputs. Order of the filter was calculated. We plotted the magnitude plot for Low pass and high pass filter. We observed the parametres pass band attenuation (Ap), stop band attenuation (As)using the magnitude plot. There were no ripples seen in the pass band or in stop band.Butterworth filter has all it's digital poles inside the unit circle. Hence the filter is stable.
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