Ebook Principles of communications

PRINCIPLES OF COMMUNICATIONS Systems, Modulation, and Noise SIXTH EDITION RODGER E. ZIEMER University of Colorado at Colorado Springs WILLIAM H. TRANTER Virginia Polytechnic Institute and State University John Wiley & Sons, Inc. VICE PRESIDENT AND EXECUTIVE PUBLISHER ASSOCIATE PUBLISHER PRODUCTION SERVICES MANAGER PRODUCTION EDITOR MARKETING MANAGER CREATIVE DIRECTOR SENIOR DESIGNER EDITORIAL ASSISTANT MEDIA EDITOR PRODUCTION SERVICES COVER DESIGN Donald Fowley Daniel Sayre Dorothy Sinclair Janet Foxman Christopher Ruel Harry Nolan Kevin Murphy Carolyn Weisman Lauren Sapira Sumit Shridhar/Thomson Digital David Levy This book was set in 10/12 Times New Roman by Thomson Digital and printed and bound by RRD Crawfordsville. The cover was printed by RRD Crawfordsville. This book is printed on acid-free paper. Copyright # 2009 John Wiley & Sons, Inc. All rights reserved. No part of this publication may be reproduced,storedinaretrievalsystemortransmittedinanyformorbyanymeans,electronic,mechanical, photocopying,recording,scanningorotherwise,exceptaspermittedunderSections107or108ofthe1976 UnitedStates CopyrightAct, without eitherthe prior written permissionofthe Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive,Danvers,MA01923,websitewww.copyright.com. RequeststothePublisherforpermissionshould be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030-5774, (201) 748-6011, fax (201) 748-6008, website www.wiley.com/go/permissions. To order books or for customer service, please call 1-800-CALL WILEY (225-5945). Library of Congress Cataloging in Publication Data: Ziemer, Rodger E. Principles of communications : systems, modulation, and noise / R.E. Ziemer, W.H. Tranter.—6th ed. p. cm. Includes bibliographical references and index. ISBN 978-0-470-25254-3 (cloth) 1. Telecommunication. 2. Signal theory (Telecommunication) I. Tranter, William H. II. Title. TK5105.Z54 2009 621.382 2—dc22 2008042932 Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 To our families. Rodger Ziemer and Bill Tranter This page intentionally left blank ... - tailieumienphi.vn