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=Exercise: Compute the DT Fourier series coefficients of the following discrete-time signal:= | =Exercise: Compute the DT Fourier series coefficients of the following discrete-time signal:= | ||
| − | <math>x | + | <math>x[n]=\sum_{k=-\infty}^\infty \left( u[n-5k]-u[n-4-5k] \right) </math> |
After you have obtained the coefficients, write the Fourier series of x(t). | After you have obtained the coefficients, write the Fourier series of x(t). | ||
Revision as of 08:28, 14 September 2010
Exercise: Compute the DT Fourier series coefficients of the following discrete-time signal:
$ x[n]=\sum_{k=-\infty}^\infty \left( u[n-5k]-u[n-4-5k] \right) $
After you have obtained the coefficients, write the Fourier series of x(t).
Help: If the function above does not look periodic to you, please read this page.
Answer
Can somebody finish the following computation?
$ \begin{align} a_n &= \sum \\ & = ... \end{align} $
