$x[n] = \frac{3\sin{(3\pi\frac{n}{4})}}{\pi n}$
What is the Discrete Time Fourier Transform $X(e^{jw})$ of $x[n]$?
Thanks.
I need to plot a graph of $X(e^{jw})$ for the sinc function x[n]. I know it is a rectangular waveform.....
$x[n] = \frac{3\sin{(3\pi\frac{n}{4})}}{\pi n}$
What is the Discrete Time Fourier Transform $X(e^{jw})$ of $x[n]$?
Thanks.
I need to plot a graph of $X(e^{jw})$ for the sinc function x[n]. I know it is a rectangular waveform.....
Note that $\dfrac{\sin \omega_c n}{\pi n}\Longleftrightarrow \text{rect}\left(\dfrac{\omega}{2\omega_c}\right)$ which is a rectangular function from $-\omega_c$ to $\omega_c$.