engineering recuitment HAL Management & Design Trainee Mock Test 2023 Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS)
The DFT of the sequence x = [1, 0, -1, 0] is:
1
X = [0, 1, 0, 1]
2
X = [1, 0, 1, 0]
3
X = [0, 2, 0, 2]
4
X = [2, 0, 2, 0]