Revision as of 16:50, 8 October 2008 by Hartmand (Talk)

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The Chosen Signal

$ x(t) = e^{3t} u(t+2) + e^{4t} u(t-2) \! $

The Fourier Transform

$ X(\omega) = \int_{-\infty}^{\infty} x(t) e^{-j\omega t} dt \! $

$ X(\omega) = \int_{-2}^{\infty} e^{3t} e^{-j\omega t} dt + \int_{2}^{\infty} e^{4t} e^{-j\omega t} dt \! $

$ X(\omega) = \int_{-2}^{\infty} e^{(3-j\omega )t} dt + \int_{2}^{\infty} e^{(4-j\omega )t} dt \! $

$ X(\omega) = {\left. \frac{e^{(j\omega -3)t}}{(j\omega - 3 )} \right]^{\infty}_{-2} } + {\left. \frac{e^{( j\omega -4)t}}{(j\omega -4 )} \right]^{\infty}_2 }\, $


$ X(\omega) = \frac{e^{-2*(3-j\omega)}}{(j\omega - 3 )} + \frac{e^{( 4- j\omega )2}}{(j\omega -4 )} $

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang