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DSP, going from freq domain to time domain

  1. Dec 4, 2013 #1
    1. The problem statement, all variables and given/known data

    X(w) = 3cos(2w) + 2 sin(3w)

    calculate x(n)


    2. Relevant equations


    x(n) = (1/2pi) ∫ X(w) e^(jwn)dw


    3. The attempt at a solution

    When integrating over 0 to 2 pi, my answer is 0. Which would not be the case.
     
  2. jcsd
  3. Dec 4, 2013 #2

    jbunniii

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    Can you please show your calculation? In particular, be careful with the cases ##n=2## and ##n=3##.
     
  4. Dec 4, 2013 #3
    It for sure shouldn't be 0 :D

    You must've made a mistake with the integration. Do you know what the answer SHOULD be?
     
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