To what value should the bandwidth of x(n) has to be reduced in order to avoid aliasing?
A. F/D
B. F/2D
C. F/4D
D. None of the mentioned
Answer:A
To what value should the bandwidth of x(n) has to be reduced in order to avoid aliasing?
A. F/D B. F/2D C. F/4D D. None of the mentioned
Explanation: To avoid aliasing, we must reduce the bandwidth of x(n) to Fmax=F/2D. Then we may down-sample by D and thus avoid sampling.