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4) (4p=2+2) A TV picture uses a source of a matrix of 480500 picture elements (pixels), where each pixel can take on one of 32

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4) (4p=2+2) A TV picture uses a source of a matrix of 480500 picture elements (pixels), where each pixel can take on one of 32 intensity values. Assume that 30 pictures are sent per second. a) Find the source rate R (bps). b) If the TV signal is transmitted over a channel with 4.5-MHz bandwidth and a 25-dB SNR. Find the capacity of the channel

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