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Transfer function from amplitude response?

  1. Apr 23, 2010 #1
    Hi, in the paper I've attached, they give a method for generating a polynomial g for the amplitude response of a filter that gives arbitrary flatness and roll-off characteristics.


    And then they say the transfer function can be easily determined from this, but they don't say how.

    For example, they give an amplitude response


    and then they just say "then we will have the transfer function"


    I know how to get the transfer function from the amplitude response for a standard filter like a butterworth or chebyshev, but for ones like this?

    Attached Files:

  2. jcsd
  3. Apr 27, 2010 #2
    Hey, I figured it out. I wrote a Mathematica note book that does it. Anyone want it?
  4. Apr 27, 2010 #3


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    Staff: Mentor

    Cool. Yes please, it would be fun to try out. Can you post it as an attachment?
  5. May 2, 2010 #4

    Attached Files:

    • p1_3.nb
      File size:
      60.8 KB
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