The Chebyshev IIR filter was designed in scilab, chebyshev filter contains ripples in pass band and stop band in its magnitude spectrum. The order of the chebyshev filter is equal to the number of ripples .LPF and HPF were designed according to the input specifications and then were compared with the values obtained from the graph. We observed that the number of poles in butterworth filter is more than chebyshev filter.
Link:- Chebyshev
Link:- Chebyshev
Poles are inside the unit circle thus filters are stable(HPF and LPF)
ReplyDeleteYes, very important factor
DeleteAlso, the transition period for Chebyshev filter is less than that of butterworth filter.
ReplyDeleteThanks for the addition Apoorva!
DeleteAlso, the transition period for Chebyshev filter is less than that of butterworth filter.
ReplyDeleteFor cheby 1: monotonic in SB
ReplyDeleteYes nice point keny. Thanks!
DeleteFor cheby 1: monotonic in SB
ReplyDeleteThe order is less in chebyshev
ReplyDeleteYes nice point Vaishnav
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ReplyDeleteChebyshev because the order is less and it has a narrow band transition due to steep roll off.
ReplyDeleteFor same specifications, the order of Chebyshev filter is less than that of Butterworth filter, i.e. the number of poles is less in Chebyshev, thus less number of discrete components are required in Chebyshev filter, hence it is preferred
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