This is a filter design technique to design an IIR filter. The magnitude response of the filter is ripple free. A code was written in Scilab ,which is an open source software to plot the frequency response of an IIR filter with the given input specifications. An analog filter was designed with the input values and a digital filter was designed from this analog filter using BLT Method.
A low pass filter as well as a high pass filter were designed. The observed values were compared with the input specifications to check for accuracy.
A low pass filter as well as a high pass filter were designed. The observed values were compared with the input specifications to check for accuracy.
In this experiment we also observed the position of analog filter poles
ReplyDeleteStability of IIR is less as compared with FIR filter.
ReplyDeleteMagnitude response of the filter is monotonic.
ReplyDeleteButterworth filters do not have ripples in pass band and stop band
ReplyDeleteWe had compared the observed and actual values of Ap and As
ReplyDeleteWell written
ReplyDeleteInformative content.
ReplyDeletenicely explained
ReplyDeleteInformative
ReplyDeleteImpulse Invariant method can also be used for designing the digital filter
ReplyDelete