The digital Chebyshev filter was designed using the same procedure as the Butterworth Filter using Scilab. The observed specifications from plot matched the theoretical ones.
The characteristics show the ripple behavior in pass band and monotonic in stop band. The number of valleys and peak in the pass band determined the order of the filter.
The major difference between butterworth and Chebyshev Filter is that the poles of butterworth filter lie on the circle, while the poles of Chebyshev Filter lie in ellipse. Also, the Chebyshev filter meets the specifications with fewer poles i.e. with lesser order than the corresponding Butterworth filter.
https://drive.google.com/drive/folders/0B9Ily3Urp8vgVWlxVDFMNHJLUXc
The characteristics show the ripple behavior in pass band and monotonic in stop band. The number of valleys and peak in the pass band determined the order of the filter.
The major difference between butterworth and Chebyshev Filter is that the poles of butterworth filter lie on the circle, while the poles of Chebyshev Filter lie in ellipse. Also, the Chebyshev filter meets the specifications with fewer poles i.e. with lesser order than the corresponding Butterworth filter.
https://drive.google.com/drive/folders/0B9Ily3Urp8vgVWlxVDFMNHJLUXc
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DeleteCompare the reuirement of order of filter for Butterworth filter and Chebyshev Filter design
ReplyDeleteit will be good if u compare cheby-1 and cheby-2 .
ReplyDeleteripples are observed in pass band
ReplyDelete