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Communication Systems

Q1:
An analog signal is band limited to B Hz sampled at Nyquist rate and samples are quantized into 4 levels each with probability . The information rate is

A 4 bits/s

B B bits/s

C 4 B bits/s

D 0.25 B bits/s

ANS:C - 4 B bits/s

. Signal should be sampled at frequency 2B Hz. Hence, information rate = 2 (2B) = 4B bits/s.



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