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Random process

  1. May 8, 2013 #1
    Problem statement: Define the random process X(t) = C where C is uniform over [-5,5].

    a) Sketch a few sample realizations


    I need reassurance that if I do a a few sample realizations of this random process they are all going to look the same. They are going to be an horizontal line with x(t) constant equal to 1/5.

    I see how this random process is define and it doesn't depend of time. Its a WSS process
     
  2. jcsd
  3. May 9, 2013 #2

    Ray Vickson

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    Why would you think that C always comes out equal to 1/5?
     
  4. May 9, 2013 #3
    Because I understood that C is a random variable with uniform distribution over [-5,5]. The PDF is 1/(5-(-5)). That is 1/10 and not 1/5.
     
  5. May 9, 2013 #4

    Ray Vickson

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    Yes, C~U(-5,5). You are saying that C must always come out equal to either 1/5 (or maybe 1/10)! So, you are saying that C can never equal 3, or -2, or 4.5, or any other number in (-5,5). Do you honestly believe that?
     
  6. May 11, 2013 #5
    @Ray I was very wrong. If I sketch a sample realization for x(t)=C with C been uniform over [-5,5] I will have for example a realization with a horizontal line in x1(t)=-5 (the y-axis) another realization can be x2(t)=2.5 with a horizontal line in 2.5 from t>=0.

    Am I right?
     
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