Question
Download Solution PDFConsider the following statements regarding filters:
1. Cauer filter has equiripple passband and stopband.
2. For a given filter order, passband and stopband deviations, Cauer filters have more transition bandwidth as compared to Chebyshev filters.
3. Linear phase characteristics cannot be achieved in IIR filters.
Which of the above statements are correct?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFChebyshev Filters : Used for to separate one band of frequency from another.
It provides fast transition between passband and stopband.
Causer Filter : also known as eliptic filter.
It provides very fast transition between passband and stopband with ripples in both passband and stopband.
It has equiripple passband and stopband and less transition bandwidth than chebyshev filter.
IIR Filters : Infinite impulse Response
It is used where linear phase is not required.
Linear phase characteristics can't be obtained because poles lies outside the unit circle hence system becomes unstable.
Hence option 2 is correct .
Last updated on Jul 2, 2025
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