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Confusion with Fourier Transform and Step Function clarification needed please

  1. Apr 6, 2009 #1
    Confusion with Fourier Transform and Step Function...clarification needed please :)

    I am required to find the Fourier Transform of (without integration):
    s(t) = 1 for 0 < t < 4; -t/2 for 4 < t < 6.

    I understand that for:
    s(t) = t for 0 < t < 1; 1 for t > 1
    that this is the same as

    [tex]s(t) = \int{\prod1(t-\frac{1}{2})}dt

    [/tex]
    (integral of the gate function)

    but what happens if t is -ve? does that mean that the gate function would be II(-t-x)???

    after that, i believe that i can figure out the FT of s(t)
    thanks in advance!
     
  2. jcsd
  3. Apr 6, 2009 #2
    Re: Confusion with Fourier Transform and Step Function...clarification needed please

    have you figured this one out yet? we are learning about step functions and fourier transforms but i haven't clarified if they can be negative? and if so, how?
     
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