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Signals

Quick practice

Question 1 of 5

A Discrete time signal has the Fourier transform $X\left(e^{j \Omega}\right)=e^{-\frac{j \Omega}{2}}$ , for The DT signal is

A

$\frac{(-1)^{n+1}}{\pi\left(n-\frac{1}{2}\right)}$

B

None of the above

C

$2 \pi \delta[n-1 / 2]$

D

$\pi \delta[n+1 / 2]$