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Digital Modulation Problems

Question # 00451298
Subject: Engineering
Due on: 12/30/2016
Posted On: 12/28/2016 09:04 AM

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1.How do you compare PCM with PWM and PPM?

2.A 8-bit ADC with 5 volt full scale voltage samples an analog signal at 1 kHz. Find the speed of the binary information at the output of the ADC.

3. A linear PCM system uses an 8-bit ADC with 8 v full scale voltage. Find the dynamic range and the SQNR in dB.

4.In a T1 PCM-TDM system, 24 signals all with the same bandwidth of 4 kHz are multiplexed after sampling at their Nyquist rate. If an 8-bit ADC is employed in this T-carrier system, find the speed of the digital multiplexed line. Assume 8 Kbps overhead for the T-carrier.

5.For each of the following line codes, find the approximate required bandwidth of a T1 line.
NRZ-L
NRZ-M
NRZ-S
Unipolar-RZ
Bipolar-RZ
AMI

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Tags problems modulation digital 8bit scale speed voltage lineaume nyquist kbps overhead multiplexed digital rate tcarrier5for tcarrier employedin codes linenrzlnrzmnrzsunipolarrzbipolarrzamianswers need word format bandwidthof required line sampling approximate following signals signal khzfind binary information

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