engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS) Inverse Discrete Fourier Transform
DFT of a sequence x(n) is given as
X(K) = {64, 32, 80, 32}
The value of IDFT [IDFT [IDFT [IDFT {X(K))}]]] is ______
1
[4, -2, 5, -2]
2
[-4, 2, -5, 2]
3
[4, 2, -5, 2]
4
[4, 2, 5, 2]