Solutions manual communication systems carlso

Solutions Manual t




to accompany
t




CommunicationSystems t




AnIntroductiontoSignalsandNoise
t t t t t




inElectricalCommunication
t t t




Fourth Edition t




A. Bruce Carlson
t t




Rensselaer Polytechnic Institute
t t




Paul B. Crilly t t




University of Tennessee t t




Janet C. Rutledge t t




University of Maryland at Baltimore
t t t t

,Solutions Manual to accompany
t t t


COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION,FOURTH
t t t t t t t t t t t


EDITION
t


A. BRUCE CARLSON, PAUL B. CRILLY, AND JANET C. RUTLEDGE
t t t t t t t t t




Published by McGraw-Hill Higher Education, an imprint of The McGraw-Hill Companies, Inc., 1221 Avenue of the
t t t t t t t t t t t t t t t



t Americas,New York, NY 10020. Copyright © The McGraw-Hill Companies, Inc., 2002, 1986, 1975, 1968. All rights
t t t t t t t t t t t t t t t t



reserved.
t




The contents, or parts thereof, may be reproduced in print form solely for classroom use with COMMUNICATION SYSTEMS: AN
t t t t t t t t t t t t t t t t t t


INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION, provided such reproductions bear copyright
t t t t t t t t t t t t t t


notice, but may not be reproduced in any other form or for any other purpose without the prior written consent of The McGraw-
t t t t t t t t t t t t t t t t t t t t t t t


Hill Companies, Inc., including, but not limited to, in any network or other electronic storage or transmission, or broadcast for
t t t t t t t t t t t t t t t t t t t


distance learning.
t t




www.mhhe.com

,Chapter 2 t




2.1-1
Ae j T0/2tt Ae n m
f
∫e j2Ae
p (m n )f t
dt jf
t


cn t t t t0 t

jf
sinc(m n)
t t
t
t t t t t



T0 T0 t /2t
t
0 otherwise

2.1-2




c0 v(t) =0
T 2p nt T0 t /2 t 2p nt 2A pn
c2 Acos dt ( A)cos dt sin
t t t t t t t t t
t

t t t t t t
t t



n
T0 t
T T pn t 2
t
T t t / 4t
0
0 0 0



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




argcn t
0 180 0 180




2.1-3




c0 = v(t) =A / 2
t t t t t



c2
t
tT /2 2At 0t t 2p nt t A A
t t




A osc
n
T 0 t
0 dt sinp n (cosp n 1)
 T0 T pn (p n)2
t t t t t t
t
0 t t t




n 0 1 2 3 4 5 6
cn 0.5A 0.2A 0 0.02A 0 0.01A 0
argcn t
0 0 0 0



2.1-4




2-1

, 2 T0 t /2 2p t
c0 Acos
t t
t
t t t t
(cont.)
T T
0
tt
0
0 0




2-2