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Nonlinear Signal Processing: A Statistical Approach PDF

484 Pages·2004·18.038 MB·English
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Nonlinear Signal Processing A Statistical Approach Gonzalo R. Arce University of Delaware Department of Computer and Electrical Engineering @EEiCIENCE A JOHN WILEY & SONS, INC., PUBLICATION This Page Intentionally Left Blank Nonlinear Signal Processing This Page Intentionally Left Blank Nonlinear Signal Processing A Statistical Approach Gonzalo R. Arce University of Delaware Department of Computer and Electrical Engineering @EEiCIENCE A JOHN WILEY & SONS, INC., PUBLICATION Copyright 0 2005 by John Wiley & Sons, Inc. All rights reserved. Published by John Wiley & Sons, Inc., Hoboken, New Jersey. Published simultaneously in Canada. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Section 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600, or on the web at www.copyright.com. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-601 1, fax (201) 748-6008. Limit of LiabilityiDisclaimer of Warranty: While the publisher and author have used their best efforts in preparing this book, they make no representation or warranties with respect to the accuracy or completeness of the contents of this book and specifically disclaim any implied warranties of merchantability or fitness for a particular purpose. No warranty may be created or extended by sales representatives or written sales materials. The advice and strategies contained herein may not be suitable for your situation. You should consult with a professional where appropriate. Neither the publisher nor author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages. For general information on our other products and services please contact our Customer Care Department within the U.S. at 877-762-2974, outside the U.S. at 317-572-3993 or fax 317-572-4002. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print, however, may not be available in electronic format. Library of Congress Cataloging-in-Publication Data: Arce, Gonzalo R. Nonlinear signal processing : a statistical approach / Gonzalo R. Arce p. cm. Includes bibliographical references and index. ISBN 0-471-67624-1 (cloth : acid-free paper) 1. Signal processing-Mathematics. 2. Statistics. I. Title. TK5102.9.A77 2004 621.382'24~22 2004042240 Printed in the United States of America 1 0 9 8 7 6 5 4 3 2 1 To Catherine, Andrew, Catie, and my beloved parents. This Page Intentionally Left Blank Preface Linear filters today enjoy a rich theoretical framework based on the early and im- portant contributions of Gauss (1795) on Least Squares, Wiener (1949) on optimal filtering, and Widrow (1970) on adaptive filtering. Linear filter theory has consis- tently provided the foundation upon which linear filters are used in numerous practical applications as detailed in classic treatments including that of Haykin [99], Kailath [ 1l o], and Widrow [ 1971. Nonlinear signal processing, however, offers significant advantages over traditional linear signal processing in applications in which the un- derlying random processes are nonGaussian in nature, or when the systems acting on the signals of interest are inherently nonlinear. Practice has shown that nonlinear sys- tems and nonGaussian processes emerge in a broad range of applications including imaging, teletraffic, communications, hydrology, geology, and economics. Nonlinear signal processing methods in all of these applications aim at exploiting the system’s nonlinearities or the statistical characteristics of the underlying signals to overcome many of the limitations of the traditional practices used in signal processing. Traditional signal processing enjoys the rich and unified theory of linear systems. Nonlinear signal processing, on the other hand, lacks a unified and universal set of tools for analysis and design. Hundreds of nonlinear signal processing algo- rithms have been proposed in the literature. Most of the proposed methods, although well tailored for a given application, are not broadly applicable in general. While nonlinear signal processing is a dynamic and rapidly growing field, large classes of nonlinear signal processing algorithms can be grouped and studied in a unified frame- work. Textbooks on higher-and lower-order statistics [ 1481, polynomial filters [ 1411, neural-networks [ 1001, and mathematical morphology have appeared recently with vii

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