1.

{ x(n) } is a real-valued periodic sequence with a period N. x(n) and X(k) form N-point. Discrete Fourier Transform (DFT) pairs. The DFT Y(k) of the sequence. y(n) = x(r) X (n + r) is

A. |X(k)|2
B. X(r) X(k + r)
C. 1
D. 0
Answer» B. X(r) X(k + r)


Discussion

No Comment Found