Butterworth Filter Design

In this experiment we designed an IIR Filter namely Butterworth Filter.The Passband and Stop Band Attenuation were kept constant at 45db and 3db respectively.The code for the order and the normalised filter was typed according to the theory.BLT method was used for getting the exact transfer function.Further,the graph observed was minimally flat graph with no ripple in Pass band and Stop Band.Due to its maximum flat pass band nature it is used as anti-aliasing filter in data converter applications.

Comments

  1. Unknown25 April 2017 at 22:11

    nice

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  2. Unknown26 April 2017 at 01:03

    We need to ensure there is good separation between stop band and pass band

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  3. Unknown28 April 2017 at 05:10

    Digital butterworth filter can be designed by two methods IIM and BLT

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  4. Unknown28 April 2017 at 05:22

    Butterworth filter design gives problem of wide transition band.

    ReplyDelete
  5. Unknown28 April 2017 at 05:46

    Quite informative.

    ReplyDelete
  6. Unknown28 April 2017 at 07:25

    Compared with a Chebyshev Type I/Type II filter or an elliptic filter, the Butterworth filter has a slower roll-off, and thus will require a higher order to implement a particular stopband specification

    ReplyDelete

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