A TV signal, m(t), bandlimited to 4.5 MHz is to be transmitted by binary PCM. The receiver output…

A TV signal, m(t), bandlimited to 4.5 MHz is to be
transmitted by binary PCM. The receiver output signal-to-quantizationnoise
ratio is required to be at least 55 dB.

a. If all brightness levels are assumed to be equally
likely, that is, amplitude of m(t) is uniformly distributed in the range
(_mmax, mmax), determine the minimum required number of quantization
levels L, and the corresponding bit rate. b. For this value of L, determine the
signal-to-quantization noise power ratio SNRQ. c. If the output SNRQ is
required to be increased by 6 dB, what is the new value of L and the
corresponding

A TV signal, m(t), bandlimited to 4.5 MHz is to be
transmitted by binary PCM. The receiver output signal-to-quantizationnoise
ratio is required to be at least 55 dB.

a. If all brightness levels are assumed to be equally
likely, that is, amplitude of m(t) is uniformly distributed in the range
(_mmax, mmax), determine the minimum required number of quantization
levels L, and the corresponding bit rate. b. For this value of L, determine the
signal-to-quantization noise power ratio SNRQ. c. If the output SNRQ is
required to be increased by 6 dB, what is the new value of L and the
corresponding transmission bandwidth? d. Repeat b) and c) for 8-level PCM

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