engineering recuitment GATE EE 2023-24 Test Series Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS) Inverse Discrete Fourier Transform
Find the IDFT of Spectrum shown in the figure:
1
\(\frac{{\sin \frac{{5\pi }}{2}n}}{{\pi n}} + \frac{{\sin \frac{\pi }{2}n}}{{\pi n}}\)
2
\(2\frac{{\sin \frac{{5\pi }}{2}n}}{{\pi n}} + 2\frac{{\sin \frac{\pi }{2}n}}{{\pi n}}\)
3
\(2\frac{{\sin \frac{\pi }{2}n}}{{\pi n}} + \frac{{\sin \frac{{5\pi }}{2}n}}{{\pi n}}\)
4
\(2\frac{{\sin \frac{{5\pi }}{2}n}}{{\pi n}} + \frac{{\sin \frac{\pi }{2}n}}{{\pi n}}\)