engineering recuitment GATE ECE 2023-24 Test Series Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS) Inverse Discrete Fourier Transform
Let the finite length signal x(n) = {x(0), x(1), x(2), (3)} = {j, -2, -j, 1}. The DFT of x(n) is
1
{-1, -2j, -1, 2j}
2
{2, 4, j, -3j, 2}
3
{-3, -2j, j, 4}
4
{-1, 5j, 1, -j}