Solutions Manual to accompany Communication Systems An Introduction to Signals and Noise in Electrical Communication Fourth Edition

Solutions Manual
to accompany


Communication
Systems
An Introduction to Signals and Noise in
Electrical Communication
Fourth Edition


A. Bruce Carlson
Rensselaer Polytechnic Institute

Paul B. Crilly
University of Tennessee

Janet C. Rutledge
University of Maryland at Baltimore

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COMMUNICATIONjoSYSTEMS:joANjoINTRODUCTIONjoTOjoSIGNALSjoANDjoNOISEjoINjoELECTRICALjoCOMMUNICATI
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SYSTEMS:joANjoINTRODUCTIONjoTOjoSIGNALSjoANDjoNOISEjoINjoELEjoCTRICALjoCOMMUNICATION,joprovidedjosuchjo
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,Chapterjo2

2.1-1
 
Ae jf Aejoj njom
cnj o  /2jjo
eo Ae
T0o
j2pjo (jomnjo)fjo 0tjo f
jo jf dtj
jo sinc(mjojon)jo
T0
joT0j
0 otherwise
o /2jo


2.1-2




c0j o v(t)j oT0/jo4j o 2pjont T0j o /2 jo 2pjontjo 2A jo pjon
c2j o j 0jo dtjo 
o dtjo Acosjo (joA)cosjo sinjo
 Tjojo
n
0

T 




jojo
T
T pjon 2
/ 4jo
0
0 0 0


n 0 1 2 3 4 5 6 7
cn 0 2joAjo/jo 0 2joAjo/jo3 0 2joAjo/jo5p 0 2joAjo/jo7p
p p
argjocn 0 180 0 180


2.1-3




c0j o j o v(t)j o A jo/2 jo
c2j o j T jo/2j 2joAtjo 2pjont A A
o o
0

T 

n
Ajo cos 0 dtjo  sinpjonjojo





(cospjonjo1)
 T0 
0
0
T pjonjo (pjon)2j o
n 0 1 2 3 4 5 6
cn 0.5A 0.2A 0 0.02A 0 0.01A 0
argjocn 0 0 0 0


2.1-4




2 jo
cjoj o jo T0jo/2 j o Acosjo2pjot 0
2-1

, Tjojo
0
(cont.)
0 T
0 0




2-2