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How to find this laplace transformation?

  1. Jun 7, 2009 #1
    System: U(s) ---> H(s) ----> Y(s)

    the transfer fuction is: H(s) = s^2 / ( (s+1)(s^2 + 2s + 2) )

    how to find the lapalace transform Y(s) of the output when the input is a unit step function?


    then how about the output time response y(t) (without imaginary terms) when the input is a unit step fuction?

    thanks.
     
    Last edited: Jun 7, 2009
  2. jcsd
  3. Jun 7, 2009 #2

    Cyosis

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    You know that the transfer function is given by [itex]H(s)=Y(s)/U(s)[/itex]. What is the Laplace transform of the unit step function?
     
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