engineering recuitment GATE IN Test Series 2023-24 Mock Test Communication Systems Pulse Modulation Pulse Code Modulation (PCM) System
In a PCM system, bits are represented using 8-bits. Which of the following signaling techniques result(s) in the same bandwidth?
[Assume sampling rate of 8000 samples/sec]1
Rectangular pulses
2
Nyquist pulse
3
Raised cosine pulses with a roll-off factor of 0.5
4
Nyquist pulse, with sampling rate changed to 16000 samples/sec