Sunday, 23 April 2017

Digital Chebyshev Filter Design

In this experiment we had to design a Digital Chebyshev Filter from Analog Chebyshev Filter BLT.
From the experiment we learnt that for an LP Digital Chebyshev Filter the ripples are present in the passband whereas the stopband is monotonic and vice versa for HP Digital Chebyshev Filter. Also in both the high pass and low pass filter, poles are present inside the unit circle , hence they are stable. For LPF there is definite zero at z=-1 while for HPF there is a definite zero at z=1.
The values of Ap and As as i/ps are tallied.

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