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Communication Systems - Engineering

Q1:

For 10 bit PCM system, the signal to quantization noise ratio is 62 dB. If the number of bits is increased by 2, then the signal to quantization noise ratio will

A increased by 6 dB

B increased by 12 dB

C decreased by 6 dB

D decreased by 12 dB

ANS:B - increased by 12 dB

= (SNR)Q + 6.02 x 2 (SNE)Q + 12 dB.