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Homework Help: Draw Signal Over Time

  1. Aug 29, 2010 #1
    1. The problem statement, all variables and given/known data

    The problem is to sketch the signal over time:
    x(t)=1+δ(t-2)+δ(t+2)+δ(5)

    2. Relevant equations
    N/A


    3. The attempt at a solution
    I'm not too sure how to begin this. Would it look like a square wave with different "peaks" over time?
     
  2. jcsd
  3. Aug 29, 2010 #2

    lanedance

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    it would look like a constant value with a few peaks

    however [itex] \delta (5) [/itex] doesn't make sense, it should be a function of t
     
  4. Aug 29, 2010 #3
    well wouldn't that be just a constant value of 5 added across the whole signal?
     
  5. Aug 29, 2010 #4

    lanedance

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    don't think so, the delta function [itex] \delta (t) [/itex] is zero everywhere except at t=0, hence why it doesn't make much sense
     
  6. Aug 29, 2010 #5
    I check it again, I did write it correctly. So assuming thats right, would it be a linear looking like increasing as time increased?
     
  7. Aug 29, 2010 #6

    lanedance

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    well as I said it doesn't make sense, but if you have to work with it, I think delta(5) = 0
     
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