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Figure 6 is the differential PCM (DPCM) transmitter. Consider a message signal as input to the DPCM system: m(t) = 3cos(
Posted: Sun May 15, 2022 8:14 pm
by answerhappygod
- Figure 6 Is The Differential Pcm Dpcm Transmitter Consider A Message Signal As Input To The Dpcm System M T 3cos 1 (118.06 KiB) Viewed 47 times
Figure 6 is the differential PCM (DPCM) transmitter. Consider a message signal as input to the DPCM system: m(t) = 3cos(100nt + 0.051) The message signal is sampled at a rate of 2000 per second. The sampled data m[k] =m(kTs), while Ts is the sample interval. Consider using the simple first-order estimator so that [k] = m[k - 1] - with the prediction error is d[k]. a) Write down the expression of m[k]. b) Determine the peak value of d[k]. c) Evaluate the amount of SNR improvement in dB that can be achieved by this DPCM over a standard PCM. m[k] d[k] d[k] To channel Quantizer [k] Predictor my[k] (a) Figure 6 DPCM transmitter