Fourier Analysis of Discrete-Time Signals

X(v)ejvndv: (7:3)

The computation of the DTFT X(v) of a signal x[n] is easily obtained directly from (7.1).

Example Compute the DTFT X(v) of the signal x[n]¼ 0.8n, 0 n 20 and plot X(v) over the frequency intervals pvp and 5pv 5p.