What is the period of the scaled spectrum Fs.X(F)?
A. 2Fs
B. Fs/2
C. 4Fs
D. Fs
Answer:A
What is the period of the scaled spectrum Fs.X(F)?
A. 2Fs B. Fs/2 C. 4Fs D. Fs
Explanation: When a continuous time signal x(t) with spectrum X(F) is sampled at a rate Fs=1/T samples per second, the spectrum of the sampled signal is periodic repetition of the scaled spectrum Fs.X(F) with period Fs.