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Assignment for beginners, Exercises of Digital Communication Systems

COMSATS Institute of Information Technology (CIIT)Digital Communication Systems

Chapter #01 and chapter # 02 Problems

Typology: Exercises

2017/2018

Uploaded on 10/07/2018

mubashir-aziz
mubashir-aziz ๐Ÿ‡ต๐Ÿ‡ฐ

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Assignment๎˜ƒ1๎˜ƒ(CLO1โ€C2โ€PLO1)๎˜ƒ
DR.๎˜ƒSHURJEEL๎˜ƒWYNE๎˜ƒ
Digital๎˜ƒCommunication๎˜ƒSystems๎˜ƒ(FA๎˜ƒ2017)๎˜ƒ
PART๎˜ƒ1๎˜ƒ
Do๎˜ƒthe๎˜ƒfollowing๎˜ƒendโ€ofโ€chapter๎˜ƒexercises๎˜ƒfrom๎˜ƒSklar's๎˜ƒbook:๎˜ƒ
I. Chapter๎˜ƒ1:๎˜ƒ1.6,๎˜ƒ1.7,๎˜ƒ1.9,๎˜ƒ1.14๎˜ƒ,1.15๎˜ƒ
II. Chapter๎˜ƒ2:๎˜ƒ2.3,๎˜ƒ2.8,๎˜ƒ2.14,๎˜ƒ2.19๎˜ƒ
PART๎˜ƒ2:๎˜ƒ
Question๎˜ƒ1. White๎˜ƒnoise๎˜ƒwith๎˜ƒpower๎˜ƒspectral๎˜ƒdensity๎˜ƒGn(f)=N0/2๎˜ƒforms๎˜ƒthe๎˜ƒinput๎˜ƒto๎˜ƒan๎˜ƒideal๎˜ƒlow๎˜ƒpass๎˜ƒ
filter๎˜ƒhaving๎˜ƒthe๎˜ƒtransfer๎˜ƒfunction๎˜ƒ
otherwise
Hz 10001000
,0
,4
)( ๏‚ฃ๏‚ฃ๏€ญ
๏ƒฎ
๏ƒญ
๏ƒฌ
๏€ฝf
fH ๎˜ƒ
Calculate๎˜ƒthe๎˜ƒpower๎˜ƒspectral๎˜ƒdensity๎˜ƒ(PSD)๎˜ƒof๎˜ƒthe๎˜ƒoutput๎˜ƒsignal๎˜ƒand๎˜ƒsketch๎˜ƒthis๎˜ƒPSD๎˜ƒin๎˜ƒa๎˜ƒdiagram๎˜ƒwith๎˜ƒ
properly๎˜ƒlabeled๎˜ƒXโ€axis๎˜ƒand๎˜ƒYโ€axis.๎˜ƒ
COMSATS Institute of Information technology
Electrical Engineering Department

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Assignment 1 (CLO1โ€C2โ€PLO1)

D R. S HURJEEL W YNE

Digital Communication Systems (FA 2017)

PART 1 Do the following end โ€ of โ€ chapter exercises from Sklar's book: I. Chapter 1: 1.6, 1.7, 1.9, 1.14 ,1. II. Chapter 2: 2.3, 2.8, 2.14, 2. PART 2: Question 1. White noise with power spectral density G (^) n (f)=N 0 /2 forms the input to an ideal low pass filter having the transfer function

otherwise

1000 1000 Hz

f

H f

Calculate the power spectral density (PSD) of the output signal and sketch this PSD in a diagram with properly labeled X โ€ axis and Y โ€ axis. COMSATS Institute of Information technology Electrical Engineering Department