1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Poles and Zeros of filter

  1. May 26, 2009 #1
    1. Given equation:
    y(n) = x(n) + x(n - 2) - 0.81y(n-2)

    a) Find the poles and zeros
    b) Determine its z transfer function

    2. Z transfer:
    H(z) = (SUMOF(a(m)*z(^-m))) / (1 - SUMOF (b(m)*z (^-m)))



    3. I get the feeling that this is pretty easy, I just don't know the required method to work it out. I know how to calculate poles and zeros of the z-transfer, but am not sure how to do it for the pre-transfer filter equation ( I assume ypu don't have to first carry out a z-transfer as this is the next part of the question)

    I know the formula for z-transfer but don't have any experience in using it. I can't seem to find any suitable examples on line to help me either

    Thanks in advance for any help
     
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?