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EXP 5 - Butterworth Filter Design

After learning DFT and FFT techniques it was finally time  to start designing filters. We started with IIr filter  design. The first filter that we were going to design was a Butterworth Filter.

Butterworth filter  was designed by using SCILAB. The results were verified by running the program and manually solving  using the same set of values. Results for both Low Pass and High Pass Butterworth filter were verified.

Comments

  1. Unknown25 April 2017 at 22:09

    How did you measure observed value of Ap and As graphically?

    ReplyDelete
    Replies
    1. Unknown25 April 2017 at 22:45

      MATLAB provides datatip manager which can be used to measure values on the graph!

      Delete
  2. Unknown25 April 2017 at 22:22

    A butterworth filter shows no ripple whatsoever in pass band and stop band

    ReplyDelete
  3. Aditi Kajrekar25 April 2017 at 22:24

    In Butterworth filter order is high, hence it's physical implementation is difficult.

    ReplyDelete
  4. Unknown25 April 2017 at 22:30

    Butterworth filter has no ripple in basspand as well as in stopband

    ReplyDelete
  5. Unknown25 April 2017 at 22:51

    Use BLT method to design analog filter

    ReplyDelete
  6. Meet Patel25 April 2017 at 23:12

    A butterworth filter has no ripple.

    ReplyDelete
  7. Akash Bangera28 April 2017 at 05:20

    it is also referred as a maximally flat magnitude filter. The rate of falloff response of the filter is determined by the number of poles taken in the circuit

    ReplyDelete
  8. Unknown28 April 2017 at 10:26

    Butterworth filters can be used to obtain a flat frequency response as it has no ripples in passband as well as stopband

    ReplyDelete

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