m (Problem 7 moved to Problem 7 (ECE301Summer2008asan)) 

(No difference)

Revision as of 11:01, 21 November 2008
Determine the Fourier Series coefficient for the following continuous time periodic signals.Show the details of your calculations and simplify your answers.
$ a_{k} = 1/T \int_{T} x(t) e^{jkw_{o}t} dt $
$ = 1/T \int_{T_{1}} ^ {T_{1}} 1*e^{jk2\frac{\pi}{T} t} dt $ (x(t)=1) $ = 1/T \int_{T_{1}} ^ {T_{1}} e^{jk2\frac{\pi}{T} t} dt $
$ = 1/T [\frac{e^{jk2\frac{\pi}{T} t}}{jk2\frac{\pi}{T}}]_{T_{1}} ^ {T_{1}} $
$ = \frac{1}{jk2\pi} (e^{jk2\frac{\pi}{T} T_{1}}  e^{jk2\frac{\pi}{T} T_{1}}) $
$ = \frac{1}{k\pi} (Sin(\frac{2k\pi}{T} T_{1}) $
Now For K = 0 Condition
$ a_{k} = 1/T \int_{T} x(t) e^{jkw_{o}t} dt $
PUT THE VALUE K=0 IN ABOVE EQUATION
$ = 1/T \int_{T_{1}} ^ {T_{1}} 1 dt $ $ = \frac{T_{1} + T_{1}}{T} $
$ = \frac{2T_{1}}{T} $