Use Butterworth and Chebychev filters

1. For what are Butterworth and Chebyshev filters used?
2. What's the difference between a Butterworth & Chebyshev filter?
3. What are Chebyshev filters used for?
4. What is a Butterworth filter used for?
5. What is advantage of Chebyshev filters over Butterworth filters?
6. What is the advantage and limitation of Chebyshev filters compared to Butterworth filters?

For what are Butterworth and Chebyshev filters used?

Butterworth Filter Applications

Because of the maximal flat frequency response in the passband, it is used as an anti-aliasing filter in data converter applications. The Butterworth filter is used in the audio processing application.

What's the difference between a Butterworth & Chebyshev filter?

As has been emphasized, a Butterworth filter has a maximally-flat pass-band response and the Chebyshev family of filters provides a good attenuation slope. On some occasions the ripples of a Chebyshev filter are not tolerable and the attenuation slope of a Butterworth filter is inadequate.

What are Chebyshev filters used for?

Chebyshev filters are used to separate one band of frequencies from another. Although they cannot match the performance of the windowed-sinc filter, they are more than adequate for many applications.

What is a Butterworth filter used for?

The Butterworth filter is a type of signal processing filter designed to have as flat frequency response as possible (no ripples) in the pass-band and zero roll off response in the stop-band. Butterworth filters are one of the most commonly used digital filters in motion analysis and in audio circuits.

What is advantage of Chebyshev filters over Butterworth filters?

The advantage of Chebyshev filters over Butterworth filters is that Chebyshev filters have a sharper transition between the passband and the stopband with a lower order filter, which produces smaller absolute errors and higher execution speeds.

What is the advantage and limitation of Chebyshev filters compared to Butterworth filters?

It is seen that Chebyshev filters have the advantage that a lower order polynomial will satisfy the specifications as compared to Butterworth filters. But on the other hand Butterworth filters have a more linear phase-characteristic than do Chebyshev filters, and this may affect the choice of design for specific cases.