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Math Help - Transfer Functions in Matlab

  1. #1
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    Transfer Functions in Matlab

    Hi,

    Does anyone know how to convert a transfer function in the s-domain to the time-domain in Matlab?

    For example, I have the following transfer function:
    H(s) = (s+2)/(s^2+4s+3)

    Now I need to determine the analytical expression for the time-domain signal h(t) and plot it over the range 0<=t<=10. Can Matlab do the conversion? If so, how?

    Thanks!
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by clctvsl View Post
    Hi,

    Does anyone know how to convert a transfer function in the s-domain to the time-domain in Matlab?

    For example, I have the following transfer function:
    H(s) = (s+2)/(s^2+4s+3)

    Now I need to determine the analytical expression for the time-domain signal h(t) and plot it over the range 0<=t<=10. Can Matlab do the conversion? If so, how?

    Thanks!
    What is the input function? (H(s) is a transfer function which corresponds to an integro-differential operator in the time domain, both of which need something on which to act).

    CB
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  3. #3
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    the input function is f(t)=delta(t)
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by clctvsl View Post
    the input function is f(t)=delta(t)
    The impulse response is the inverse LT of the transfer function.

    Matlab stuff to do this is covered >>here<<

    CB
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