railway RRB JE (CBT I + CBT II) Mock Test 2024 Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS) Inverse Discrete Fourier Transform
What is the inverse discrete-time Fourier transform of the frequency domain representation shown in the figure?
1
\(\rm x[n]=\frac{\pi}{2}\sin (\Omega_1n)\)
2
\(\rm x[n]=\frac{3}{2\pi}\sin (\Omega_1n)\)
3
\(\rm x[n]=\frac{1}{\pi}\sin (\Omega_1n)\)
4
\(\rm x[n]=\frac{1}{2\pi}\sin (\Omega_1n)\)