If a power signal has its power density spectrum concentrated about zero frequency, the signal is known as:
A. Low frequency signal
B. Middle frequency signal
C. High frequency signal
D. None of the mentioned
Answer:A
If a power signal has its power density spectrum concentrated about zero frequency, the signal is known as:
A. Low frequency signal B. Middle frequency signal C. High frequency signal D. None of the mentioned
Explanation: We know that, for a low frequency signal, the power signal has its power density spectrum concentrated about zero frequency.