Description: Script to design an IIR Filter low pass using Butterworth & lineal transformation to convert
from analogic to digital a prototype filter.
by actinio vjgonzalezg@gmail.com :)
It plots:
1-Frecuency response of the filter impulse.
2-Magnitude response of the filter.
3-phase of the frecuency response.
4-Error of aproximation in bands.
It determines error of máximun aproximation on each band and the RMS value for the reject and pass band respectively
then, obtains plots of the first 50 samples for the following entries:
a)An rectangular pulse as the half of the longitud of the filter in n=0
b)A senoidal wave with amplitude =1 & frecuency 0.2 Fs.
c)A senoidal wave with amplitude = 1. & frecuency= 0.25 Fs.
d)A senoidal wave with amplitude = 1. & frecuency= 0.375 Fs.
File list (Check if you may need any files):
IIRButterworthfilter.m
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