Aliasing is caused when:
A. Sampling frequency must be equal to the message signal
B. Sampling frequency must be greater to the message signal
C. Sampling frequency must be less to the message signal
D. Sampling frequency must be greater than or equal to the message signal
Answer:C
Aliasing is caused when:
A. Sampling frequency must be equal to the message signal B. Sampling frequency must be greater to the message signal C. Sampling frequency must be less to the message signal D. Sampling frequency must be greater than or equal to the message signal
Explanation: Aliasing refers to the process when the discrete time signal is recontructed back then due to the error some part of the signal is lost and is caused when sampling frequency must be less than frequency of message signal.