Teaching TN TRB EC Mock Test Signals and Systems Discrete Fourier Transform (DFT) and Discrete Fourier Series (DFS)
The 4 – point inverse DFT on the sampled discrete time Fourier transform X (ejω) of x (n) = {0 1 2 3 4 5} is:
1
{4 6 2 3}
2
{0 1 2 3}
3
{2 3 4 5}
4
{5 0 1 2}