Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 3 (Q.No. 28)
28.
In PCM, if the number of quantization levels is increased from 4 to 64, then the bandwidth requirement will approximately be increased __________ times.
Answer: Option
Explanation:
Bandwidth for PCM system
= 2nN fm Hz for N >> 1, n >> 1
where n is no. of channel, N is no. of bit.
B1 = 2n N1 fm 
B2 = 2n N2 fm
2N1 = 4 
N1 = log24 N1 = 2
2N2 = 64 N2 = log264 6
.
Discussion:
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