Solutions Manual for Communication Systems: An Introduction to Signals and Noise in Electrical Communication, 4th Edition

Solutions Manual j




to accompany
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CommunicationSystems j




AnIntroductiontoSignalsandNoisei
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nElectricalCommunication
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Fourth Edition j




A. Bruce Carlson
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Rensselaer Polytechnic Institute
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Paul B. Crilly j j




University of Tennessee j j




JanetC.Rutledge j j




University of Maryland at Baltimore
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,Solutions Manual to accompany
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COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION,FOURTH EDITION
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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 of the
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Americas,New York, NY 10020. Copyright © The McGraw-Hill Companies, Inc., 2002, 1986, 1975, 1968. All rights reserved.
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The contents, or parts thereof, may be reproduced in print form solely for classroom use with COMMUNICATION SYSTEMS: AN
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INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION,provided such reproductions bear copyrightnotice,
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but may not be reproduced in any other form or for any other purpose without the prior written consent of The McGraw-Hill
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Companies, Inc., including, but not limited to, in any network or other electronic storage or transmission, or broadcast for distance
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learning.
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www.mhhe.com

,Chapter 2 j




2.1-1
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∫e dt Ae sinc(m n)
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f
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j2p (m n )f 0t jf
cn
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T0
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T0 /2
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0 otherwise

2.1-2




2 0T0 /4
c0 v(t) 2p n t T0 /2 2p n t 2A pn
c Acos dt A)cos dt sin
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n
0 T j
T/ 4
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T j T pn j 2
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0
0 0 0



n 0 1 2 3 4 5 6 7
cn 0 2A/p j j j
0 2A/3p j j j
0 2A/5p
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0 2A/7p j j j




argcn j
0 0




2.1-3




c0  v(t) A / 2
2
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c j j T0 /2 j 2At j j 2p n t j A A
A co
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T0 s dt sinpn (cospn
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pn j j
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(pn)2
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n 0 1 2 3 4 5 6
cn 0.5A 0.2A 0 0.02A 0 0.01A 0
argcn j
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2.1-4




2 T0 /2 2p t
c Acos
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2-1

, (cont.)
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0
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2-2