Chebyshev filters are analog or digital filters and have more passband ripple.
Chebyshev filters are of two types:
1) Chebyshev-1: These filter are all pole filters in the passband, they have monotonic characteristics in the stopband
2) Chebyshev-2: This filter contains zeros as well as poles.
These filters minimize the error between the idealized and the actual filter characteristics over the range of filter but with the ripples in the passband.
Good explanation
ReplyDeleteThe Chebyshev filter is named after Pafnuty Chebyshev, who developed the polynomials on which the filter design was based.
ReplyDeleteChebyshev filter has ripples
ReplyDeleteThere are two types of Chebyshev Filter -1 and 2.The earlier has ripple in passband and the later has ripple in stopband respectively.
ReplyDeletePreferred over Butterworth if variations in amplitude are tolerable
ReplyDeleteIn chebyshev filter there are ripples in pass band and monotonic in stop band.
ReplyDelete