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

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

A. Bruce Carlson
QW E QW E




Rensselaer Polytechnic Institute
QWE QWE




Paul B. Crilly Q W E Q W E




University of Tennessee QWE QWE




JanetC. Rutledge QWE QWE




University of Maryland at Baltimore
QWE QWE QWE QWE

,Solutions Manual to accompany QWE QWE QWE




COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION,FOURTH EDITIO
QWE QWE QWE QWE QWE QWE QWE QWE QWE QWE E
QW QW E




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




Published by McGraw-Hill Higher Education, an imprint of The McGraw-
QWE QWE QWE QW E QWE QWE QWE QW E QWE




Hill Companies, Inc., 1221 Avenue of the Americas,New York, NY 10020. Copyright © The McGraw-
QWE QWE QWE QWE QWE QWE QWE E
QW QWE QWE QW E QW E QWE QWE QWE




Hill Companies, Inc., 2002, 1986, 1975, 1968. All rights reserved.
QWE QWE QWE QWE QWE QWE Q W E QWE QWE




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




TRODUCTION TO SIGNALS AND NOISE IN ELECTRICAL COMMUNICATION,provided such reproductions bear copyrightnotice, bu
QWE QWE QWE QWE QWE QWE E
QW QWE E
QW QWE QWE QWE QWE E
QW QWE




t may not be reproduced in any other form or for any other purpose without the prior written consent of The McGraw-
QWE QWE QW E QW E QWE QWE QW E QWE QW E QW E QWE QW E QWE QW E QWE QWE QWE QWE QWE QWE QWE




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




nce learning. QW E




www.mhhe.com

,Chapter 2 QWE




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




cn
E
QW

E
QW QWE



QWE E
QW QWE QWE Q W E
E
QW E
QW QWE



E
QW Q W E QWE




T0
Q W E




T0 /2
E
QW

Q W E
E
QW



0 otherwise

2.1-2




c0 v(t) 0
T0 /4 2p n t T0 /2 2p n t 2A pn
2
c Acos dt A)cos dt sin
Q W E Q W E
E
QW Q W E E
QW
E
QW QWE Q W E E
QW QWE
QWE Q W E




Q W E E
QW E
QW QWE E
QW QWE Q W E E
QW




n
T
0 T T
T pn E
QW 2
/4
QWEQ W E
QWEQ




0
WE E
QW




0 0 0



n 0 1 2 3 4 5 6 7
cn 0 2A/p E
QW E
QW E
QW
0 2A/3p E
QW E
QW E
QW
0 2A/5pE
QW E
QW E
QW
0 2A/7p E
QW E
QW E
QW




argcn E
QW
0 0




2.1-3




c0  v(t) A / 2
2
Q W E Q W E Q W E E
QW E
QW




cQ W T /2 2At
E E
QW
0 QWE QWE E
QW E
QW 2p n t QWE A A
A co
n 0 T0 s dt sinpn (cospn
E
QW




T0  T0
Q W E




pn
E
QW E
QW
E
QW E
QW




(pn)2
QWE




E
QW
Q W E
E
QW E
QW




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



2.1-4




2-1

, 2 2p t
c T0 /2
QWE
Q W E




Acos
QWE Q W E



(cont.)
0
QW EQ W E QW
E




QW E




T T
0
QWEQW E
0
0 0




2-2