Sunday, 23 April 2017

Butterworth Filter Design

IIR filters were designed using Scilab. The first type of IIR filter is Butterworth filter. Its response has no ripple in passband and stopband. BLT method was used to design the filter. By putting the values of required parameters As, Ap,Ws,Wp and sampling frequency, both high pass and low pass filters were designed. As BLT method is used, frequency bands are compressed in digital filters.
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8 comments:

  1. $oM€$h24 April 2017 at 09:23

    Crisp explanation!

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  2. Unknown26 April 2017 at 11:29

    This comment has been removed by the author.

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  3. Unknown26 April 2017 at 11:30

    These filters have a slow roll off and hence a wide transition band

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    1. Nobody29 April 2017 at 06:57

      This is a disadvantage of this filter when compared to chebyshev filter

      Delete
  4. Unknown28 April 2017 at 06:39

    Butterworth filter has monotonic magnitude response.

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    1. Nobody29 April 2017 at 06:58

      Yes, it has no ripples while chebyshev filter has ripples depending upon its type.

      Delete
  5. Chaitanya S28 April 2017 at 08:55

    Butterworth filter is also called maximally flat magnitude filter

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  6. Ankur Mahadik1 May 2017 at 08:48

    Great stuff

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