文档介绍:Solutions Manual
to pany
Communication
Systems
An Introduction to Signals and Noise in
munication
Fourth Edition
A. Bruce Carlson
Rensselaer Polytechnic Institute
Paul B. Crilly
University of Tennessee
C. Rutledge
University of Maryland at Baltimore
Solutions Manual to pany
COMMUNICATION SYSTEMS: AN INTRODUCTION TO SIGNALS AND NOISE IN MUNICATION,
FOURTH EDITION
A. BRUCE CARLSON, PAUL B. CRILLY, AND C. RUTLEDGE
Published by McGraw-Hill Higher Education, an imprint of The McGraw-panies, Inc., 1221 Avenue of the Americas,
New York, NY 10020. Copyright © The McGraw-panies, Inc., 2002, 1986, 1975, 1968. All rights reserved.
The contents, or parts thereof, may be reproduced in print form solely for classroom use MUNICATION SYSTEMS: AN
INTRODUCTION TO SIGNALS AND NOISE IN MUNICATION, 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 work or other electronic storage or transmission, or broadcast for distance
learning.
Chapter 2
-1
jφ jφ
Ae T0 /2 ì Aenm=
c=ej2π()mnft­ 0 dt=Aejφ sinc()mn­=
n ò­T /2 í
T0 0 î0otherwise
-2
c0 vt()0=
2TT00/42πnt/2 22ππntAn
cn =Acosdt+(­=A)cosdt sin
òò0T0 /4
T0T00Tnπ 2
n 0 1 2 3 4 5 6 7
0 2/A π 0 2A/3π 0 2A/5π 0 2A/7π
cn
0 ±°180 0 ±°180
-3
c0 ==v(tA)/2
2T0 /2 æö22AtπntAA
cn =ç÷A­cosdt=sinππnn­­(cos1)
ò0 2
T0èøTT00ππnn()
n 0 1 2 3 4 5 6
0 0 0
cn
0 0 0 0
-4
22T0 /2 πt
cA0 ==cos0 (cont.)
ò0
TT00
2-1
T0 /2
T /2
20 2ππt22ntAéùsin(π­+πn )2t/T00sin(ππn ) 2/tT
cn =Acoscos dt =+êú
Tò0 TTT4(π­+πn)/T4(ππnT)/
0000ëû000
A ìAn/21=±
=[sinc(1­nn)+sinc(1)+=] í
2 î 0otherwise
-5
c0 ==vt()0
22T0 /2 πntA
cn =­jAsindt=­­jn(1cos)π
ò0
T00Tn