to accompany sw
CommunicationSystems sw
An Introduction to Signals and Noise
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inElectrical Communication
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Fourth Edition s w
A. Bruce Carlson
sw sw
Rensselaer Polytechnic Institute
sw sw
Paul B. Crilly sw sw
University of Tennessee sw sw
Janet C. Rutledge sw sw
University of Maryland at Baltimore
sw sw sw sw
,Solutions Manual to accompany
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COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION, FOURTH
sw sw sw sw sw sw sw sw sw sw sw
EDITION
sw
A. BRUCE CARLSON, PAUL B. CRILLY, AND JANET C. RUTLEDGE
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Published by McGraw-Hill Higher Education, an imprint of The McGraw-Hill Companies, Inc., 1221 Avenue
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sw of the Americas, New York, NY 10020. Copyright © The McGraw-Hill Companies, Inc., 2002, 1986, 1975,
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1968.
sw s w All rights reserved.
sw sw
The contents, or parts thereof, may be reproduced in print form solely for classroom use with COMMUNICATION
sw sw sw sw sw sw sw sw sw sw sw sw sw sw sw sw
SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELE CTRICAL COMMUNICATION, provided such
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reproductions bear copyright notice, but may not be reproduced in any other form or for any other purpose
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without the prior written consent of The McGraw-Hill Companies, Inc., including, but not limited to, in any network
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or other electronic storage or transmission, or broadcast for distance learning.
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www.mhhe.com
,Chapter 2 sw
2.1-1
Ae j T0/2swsw Ae n m
f
∫e j2pAe( m jf n )f t sw
dt jf sw
cn s w sw sw sw0
sinc(m n)
sw sw
s w
sw sw sw sw
sw
T0 T0
sw
0 otherwise
sw
/2sw
2.1-2
c0 v(t) T0
2p T0 s w /2 sw 2p nt 2A pn
c2 nt
dt Acos A)cos dt sin
sw s w sw s w sw sw sw sw
sw
sw
sw sw sw sw sw
s w sw
sw
n
T T T pn sw 2
0
sw
sw
T sw
sw / 4sw
0
0 0 0
n 0 1 2 3 4 5 6 7
cn 0 2A/p sw sw sw
0 2A / 3p sw sw sw
0 2A / 5p sw sw sw
0 2 A / 7p sw sw sw
arg cn sw
0 0
2.1-3
c0 v(t) A /2
s w s w s w sw sw
c2
s w
T /2 2 At 0 sw sw 2p nt sw A A
sw sw
sw
n
A cos
T sw
0 0 dt sinp n (cosp n
T pn (p n)2
sw sw sw sw sw sw
0
T0 sw sw sw
s w
n 0 1 2 3 4 5 6
cn 0.5A 0.2A 0 0.02A 0 0.01A 0
arg cn sw
0 0 0 0
2.1-4
2-1
, 2 T0 sw /2
c2p t Acos
s w
sw
sw s w
sw s w
sw
(cont.)
T T
0
sw sw
0
0 0
2-2