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Electronics and Communication Engineering - Communication Systems - Discussion

Discussion Forum : Communication Systems - Section 5 (Q.No. 34)
Communication Systems
34.
A signal is sampled at 8 kHz and is quantized using 8 bit uniform quantizer. Assuming SNRq for a sinusoidal signal, the correct statement for PCM signal with a bit rate of R is
R = 32 KbPs, SNRq = 25.8 dB
R = 64 KbPs, SNRq = 49.8 dB
R = 64 KbPs, SNRq = 58.8 dB
R = 32 KbPs, SNRq = 49.8 dB
Answer: Option
Explanation:

where n is no. of bit, fs is sampling frequency.

SNR = 1.76 + 6.02n

= 1.76 + 6.02 x 8 49.8 dB.

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