Q19. i)Explain any two digital signal processing techniques used in digital communicationsystem.ii)A communication system is represented by the gains A1,A2,A3,A4 as shown in FigureB1. The output power Poutput is 36dB and Pinput is 42dB.PinputPoutputA1A2АЗA4Figure B1a)Check whether the system is working as amplifier or attenuator. Justify your answer.b)Find the value of gain A3 if Al=A2=6 and A4=0.75.

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Q19. i) Explain any two digital signal processing techniques used in digital communication system.

Introductory Circuit Analysis (13th Edition)

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Publisher:Robert L. Boylestad

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Question

Q19. i)
Explain any two digital signal processing techniques used in digital communication
system.
ii)
A communication system is represented by the gains A1,A2,A3,A4 as shown in Figure
B1. The output power Poutput is 36dB and Pinput is 42dB.
Pinput
Poutput
A1
A2
АЗ
A4
Figure B1
a)
Check whether the system is working as amplifier or attenuator. Justify your answer.
b)
Find the value of gain A3 if Al=A2=6 and A4=0.75.

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