Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Communication Systems Sampling Sampling Theorem
According to the Nyquist theorem, to produce the original analog signal, one necessary condition is :
1
Sampling rate must be at least 2 times the highest frequency contained in the signal.
2
Sampling rate must be at least 2 times the lowest frequency contained in the signal.
3
Sampling rate must be at least \(\frac{1}{2}\) times the highest frequency contained in the signal.
4
Sampling rate must be at least \(\frac{1}{2}\) times the lowest frequency contained in the signal.