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

Solutions Manual
to accompany
CommunicationSystems
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

,Solutions Manual to accompany
COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION, FOURTH
EDITION
A. BRUCE CARLSON, PAUL B. CRILLY, AND JANET C. RUTLEDGE

Published by McGraw-Hill Higher Education, an imprint of The McGraw-Hill Companies, Inc., 1221 Avenue of the
Americas, New York, NY 10020. Copyright © The McGraw-Hill Companies, Inc., 2002, 1986, 1975, 1968. All rights
reserved.

The contents, or parts thereof, may be reproduced in print form solely for classroom use with COMMUNICATION SYSTEMS:
AN INTRODUCTION TO SIGNALS AND NOISE IN ELE CTRICAL COMMUNICATION, provided such reproductions bear copyright
notice, but may not be reproduced in any other form or for any other purpose without the prior written consent of The
McGraw-Hill Companies, Inc., including, but not limited to, in any network or other electronic storage or transmission, or
broadcast for distance learning.

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,Chapter 2

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


T0 T0 /2
0 otherwise

2.1-2




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



n 0 1 2 3 4 5 6 7
cn 0 2A/ 0 2 A / 3p 0 2 A / 5p 0 2 A / 7p
p
arg 0 180 0 180
cn


2.1-3




c0 = v(t) =A /2
2
c T /2 2 At
0 2p nt A A
A osc
n
T 0 0 dt sinp n (cosp n 1)
0  T0 T pn (p n)2

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


2.1-4

2-1

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




2-2