(Solved):
The magnitude spectrum of a discrete time Fourier transform (DTFT) coefficient, X(N)| is shown in ...
The magnitude spectrum of a discrete time Fourier transform (DTFT) coefficient, X(N)| is shown in Figure T1. Magnitude Spectrum X(M)=2cos(3) 2.5 0 ?/2 ? Figure T1 |X(S2)| 2 1.5 0.5 0 -T -?/2 ?
(a) The DTFT expression for magnitude spectrum in Figure T1 is [X(N)]: 2 cos(302). Prove that its inverse DTFT is an aperiodic discrete-time signal given by x[n] = 8[n + 3] + 8[n ? 3].