Which of the following is true about the interpolated signal whose spectrum is V(ωy)?
A. (I-1)-fold non-periodic
B. (I-1)-fold periodic repetition
C. I-fold non periodic
D. I-fold periodic repetition
Answer:A
Which of the following is true about the interpolated signal whose spectrum is V(ωy)?
A. (I-1)-fold non-periodic B. (I-1)-fold periodic repetition C. I-fold non periodic D. I-fold periodic repetition
Explanation: We observe that the sampling rate increase, obtained by the addition of I-1 zero samples between successive values of x(n), results in a signal whose spectrum is a I-fold periodic repetition of the input signal spectrum.