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Contribution A La Conception De Circuits De Commande Laser Pour Les Transmissions Analogique Et Numerique A Tres Haut Debit Application A La Realisation Dun Circuit Large
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Book Synopsis CONTRIBUTION A LA CONCEPTION DE CIRCUITS DE COMMANDE LASER POUR LES TRANSMISSIONS ANALOGIQUE ET NUMERIQUE A TRES HAUT DEBIT. APPLICATIONS A LA REALISATION D'UN CIRCUIT LARGE BANDE EN TECHNOLOGIE MICRORUBAN by : DENIS.. LE BERRE
Download or read book CONTRIBUTION A LA CONCEPTION DE CIRCUITS DE COMMANDE LASER POUR LES TRANSMISSIONS ANALOGIQUE ET NUMERIQUE A TRES HAUT DEBIT. APPLICATIONS A LA REALISATION D'UN CIRCUIT LARGE BANDE EN TECHNOLOGIE MICRORUBAN written by DENIS.. LE BERRE and published by . This book was released on 1997 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: LES SYSTEMES DE TRANSMISSION PAR FIBRE OPTIQUE APPORTENT AUJOURD'HUI UNE SOLUTION INTERESSANTE POUR LE TRANSPORT D'INFORMATION A DES DEBITS DE PLUS EN PLUS ELEVES. DANS CET OBJECTIF, CE TRAVAIL A POUR OBJET D'APPORTER UNE CONTRIBUTION A LA CONCEPTION DE CIRCUIT DE COMMANDE LASER ET IL S'INSCRIT DANS LE CADRE DU DEVELOPPEMENT AU LEST DU POLE OPTOELECTRONIQUE. L'OBJECTIF PRINCIPAL DE CE TRAVAIL CORRESPOND A LA CONCEPTION DE RESEAUX D'ADAPTATION PLACES ENTRE LA DIODE LASER ET LE CIRCUIT DE COMMANDE HYPERFREQUENCE. EN VUE D'AMELIORER LES PERFORMANCES DE LA MODULATION INTERNE DU LASER, CES RESEAUX D'ADAPTATION SONT INDISPENSABLES COMPTE TENU D'UNE PART DE LA REPONSE INTRINSEQUE DU LASER ET D'AUTRE PART DE LA GRANDE DIFFERENCE D'IMPEDANCE ENTRE LES ELEMENTS. SUR LA BASE DE LA METHODE DES FREQUENCES REELLES, NOUS AVONS DEVELOPPE ET ADAPTE LA METHODE A UNE STRUCTURE DIFFERENTIELLE POUR UNE APPLICATION DE TRANSMISSION ANALOGIQUE. NOUS AVONS DONC MIS AU POINT DEUX LOGICIELS D'ANALYSE, D'OPTIMISATION ET DE SYNTHESE PERMETTANT D'ABOUTIR A LA CONCEPTION DU CIRCUIT DE COMMANDE. CES LOGICIELS CORRESPONDENT RESPECTIVEMENT AUX MODES IMPAIR ET PAIR DE LA STRUCTURE DIFFERENTIELLE. POUR LE PREMIER, L'OBJECTIF EST D'ATTEINDRE UNE PUISSANCE OPTIQUE DE SORTIE CONSTANTE EN FREQUENCE, PAR CONTRE POUR LE SECOND, L'OBJECTIF EST DE LE REJECTER AU MAXIMUM PAR LA CONCEPTION D'UNE CHARGE ACTIVE AFIN D'ABOUTIR A UN FONCTIONNEMENT GLOBAL DE LA STRUCTURE EQUIVALENT A CELUI DU MODE IMPAIR. NOUS AVONS ALORS DEVELOPPE UN EXEMPLE DE CONCEPTION POUR UNE APPLICATION DE DEPORT D'ANTENNE DANS LA BANDE 10.7-14.5 GHZ, PUIS NOUS AVONS REALISE UN CIRCUIT CORRESPONDANT AU SEUL MODE IMPAIR DE LA STRUCTURE DANS UNE BANDE DE FREQUENCE ALLANT DE 0.1 A 4 GHZ. MALGRE QUELQUES LEGERES VARIATIONS, NOTAMMENT AU-DELA DE LA BANDE PASSANTE, LES MESURES SONT SUFFISAMMENT PROCHE DE LA THEORIE POUR VALIDER LA METHODE DE CONCEPTION. POUR LA SECONDE APPLICATION CONCERNANT LA CONCEPTION DE CIRCUIT DE COMMANDE LASER POUR DES APPLICATIONS DE TRANSMISSION NUMERIQUE A TRES HAUT DEBIT, NOUS AVONS DEVELOPPE UNE METHODE D'ANALYSE PUREMENT TEMPORELLE, CECI COMPTE TENU DES CARACTERISTIQUES FORTEMENT NON LINEAIRES DE LA DIODE LASER EN REGIME GRAND SIGNAL, DU CARACTERE ALEATOIRE DES SEQUENCES DU SIGNAL ELECTRIQUE APPLIQUEES A L'ENTREE DU CIRCUIT. L'EFFICACITE DU FORMALISME DEVELOPPE LIEE A LA SIMPLICITE DES PARAMETRES S TEMPORELS DES LIGNES ELEMENTAIRES DU QUADRIPOLE D'ADAPTATION, NOUS A PERMIS DE DISPOSER D'UN OUTIL D'ANALYSE TEMPORELLE DE CIRCUIT NON LINEAIRE PRECIS ET RAPIDE ET DEBOUCHANT SUR LA CONSTRUCTION DU DIAGRAMME DE L'IL. NOUS AVONS ALORS DEMONTRE SUR PLUSIEURS EXEMPLES ET POUR DIFFERENTS DEBITS, L'IMPORTANCE DU RESEAU D'ADAPTATION DANS UN CIRCUIT DE COMMANDE LASER.
Book Synopsis Contribution a la conception de circuits de commande laser pour les transmissions analogique et numerique a tres haut debit. Application a la realisation d'un circuit large by : Denis Le Berre
Download or read book Contribution a la conception de circuits de commande laser pour les transmissions analogique et numerique a tres haut debit. Application a la realisation d'un circuit large written by Denis Le Berre and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CONCEPTION ET MISES EN UVRE DE CIRCUITS INTEGRES GAAS POUR LA COMMANDE EN LONGUEUR D'ONDE DE DIODES LASERS RAPIDEMENT ACCORDABLES by : JEAN.. HOURANY
Download or read book CONCEPTION ET MISES EN UVRE DE CIRCUITS INTEGRES GAAS POUR LA COMMANDE EN LONGUEUR D'ONDE DE DIODES LASERS RAPIDEMENT ACCORDABLES written by JEAN.. HOURANY and published by . This book was released on 1996 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE ETUDE SE SITUE DANS LE CONTEXTE DES RECHERCHES, ACTUELLEMENT INTENSIVES, SUR LES NOUVEAUX RESEAUX MULTIPOINTS DE TELECOMMUNICATIONS NUMERIQUES MULTICOLORES SUR FIBRE OPTIQUE. ELLE VISE A CONCEVOIR DES CIRCUITS INTEGRES GAAS POUR LA COMMANDE EN LONGUEUR D'ONDE DE DIODES LASERS ACCORDABLES RAPIDEMENT (EN QUELQUES NANOSECONDES). L'ASSEMBLAGE DE LA DIODE LASER ET DE SON CIRCUIT DE COMMANDE AU SEIN D'UN ENSEMBLE COMPACT EST ETUDIE POUR DEUX TYPES DE MODULES: MODULE DE CONVERSION EN LONGUEUR D'ONDE UTILISANT UN LASER DBR A 3 SECTIONS ET MODULE DE FILTRAGE EN LONGUEUR D'ONDE UTILISANT UN FILTRE DFB ORIGINAL. DANS CES MODULES, L'ACCORD RAPIDE EST EFFECTUE A L'AIDE, RESPECTIVEMENT, DE 1 ET 2 COURANTS ELECTRIQUES. DANS LE CHAPITRE II, DES BRIQUES ELECTRONIQUES DE BASE SONT PROPOSEES ET REALISEES EN UTILISANT DES TECHNOLOGIES A BASE DE TRANSISTORS PSEUDOMORPHIQUES A HAUTE MOBILITE ELECTRONIQUE (P-HEMT). LES PERFORMANCES OBTENUES SONT PRESENTEES ET COMPAREES. LES VARIATIONS BASSE-FREQUENCE DE LA CONDUCTANCE DE SORTIE ET LES DISPERSIONS TECHNOLOGIQUES SONT PRISES EN COMPTE DANS LA CONCEPTION DES CES ETAGES. LE CHAPITRE III TRAITE DES ARCHITECTURES DES CIRCUITS COMPLETS. COMME PRECEDEMMENT, PLUSIEURS ARCHITECTURES ORIGINALES SONT PRESENTEES, ET TESTEES, EN UTILISANT QUATRE TECHNOLOGIES DIFFERENTES (DONT UNE TECHNOLOGIE P-HEMT DOUBLE-SEUIL). UN EFFORT PARTICULIER EST PORTE A LA REDUCTION DE LA CONSOMMATION. LE PROBLEME DE L'INTEGRATION DE CES CIRCUITS AVEC LES DIODES LASERS EST ABORDE AU CHAPITRE IV: UN CIRCUIT DE DECOUPLAGE TRES LARGE BANDE ET L'ASSEMBLAGE COMPLET DES MODULES ONT ETE OPTIMISES. DES CARACTERISATIONS EXPERIMENTALES DE PLUSIEURS TYPES DE MODULES DE CONVERSION ET DE FILTRAGE ACCORDABLE EN LONGUEUR D'ONDE SONT PRESENTEES. L'ETUDE EST FINALEMENT VALIDEE PAR L'INTEGRATION DE MODULES AU SEIN DES DEUX MATRICES EXPERIMENTALES DE COMMUTATION ATM ASSEMBLEES PAR DEUX LABORATOIRES EUROPEENS EXTERIEURS. CETTE ETUDE OUVRE LA VOIE A DES SYSTEMES FONCTIONNELS ET COMPACTS DE TRAITEMENT DES DONNEES AU SEIN DES NOUVEAUX RESEAUX DE TELECOMMUNICATIONS A HAUT DEBIT BASES SUR LE MULTIPLEXAGE ET LE ROUTAGE DE CELLULES DE DONNEES NUMERIQUES
Book Synopsis Ultra Wide Band Antennas by : Xavier Begaud
Download or read book Ultra Wide Band Antennas written by Xavier Begaud and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultra Wide Band Technology (UWB) has reached a level of maturity that allows us to offer wireless links with either high or low data rates. These wireless links are frequently associated with a location capability for which ultimate accuracy varies with the inverse of the frequency bandwidth. Using time or frequency domain waveforms, they are currently the subject of international standards facilitating their commercial implementation. Drawing up a complete state of the art, Ultra Wide Band Antennas is aimed at students, engineers and researchers and presents a summary of internationally recognized studies.
Download or read book MIMO written by Alain Sibille and published by Academic Press. This book was released on 2010-12-03 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foreword from Arogyaswami Paulraj, Professor (Emeritus), Stanford University (USA) - The first book to show how MIMO principles can be implemented in today's mobile broadband networks and components - Explains and solves some of the practical difficulties that arise in designing and implementing MIMO systems - Both theory and implementation sections are written in the context of the most recent standards: IEEE 802.11n (WiFi); IEEE 802.16 (WIMAX); 4G networks (3GPP/3GPP2, LTE)
Book Synopsis Pervasive Mobile and Ambient Wireless Communications by : Roberto Verdone
Download or read book Pervasive Mobile and Ambient Wireless Communications written by Roberto Verdone and published by Springer Science & Business Media. This book was released on 2012-01-02 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reporting the findings of COST 2100, a major European intergovernmental project, this volume offers system designers a good source of guidelines based on channel characterization and measurement-based modeling, as well as worthwhile ideas for future research.
Book Synopsis Outside Innovation by : Patricia B. Seybold
Download or read book Outside Innovation written by Patricia B. Seybold and published by Harper Collins. This book was released on 2009-10-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: How dynamic businesses of every size can unleash innovation by inviting customers to co–design what they do and make. Reading line: The 8 Roles Customers Play in Trend–Setting Companies The refrain is familiar for Patricia Seybold in her journeys as a top technology and management strategist: "I want our company to be acknowledged as the most admired and most customer–valued in our industry and to be recognized as the company that has forever changed the way things are done." "How can we become the Google of banking?" "How can we be the eBay of software?" "I want to be the JetBlue of manufacturing." "How can we become the undisputed trend–setter in our industry–with a competitive bar no one can topple?" In Outside Innovation, bestselling author Seybold taps her close relationship with dozens of high–innovation companies to reveal the untold strategy behind the trendsetters and the next HUGE leap forward in customer strategy. Seybold shows that companies that are dominating their category and staying ahead of the pack are collaborating at every level of their business with their customers.
Book Synopsis Principles of Radar and Sonar Signal Processing by : Chevalier François Le
Download or read book Principles of Radar and Sonar Signal Processing written by Chevalier François Le and published by Artech House. This book was released on 2002 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Engineering Acoustics by : Michael Möser
Download or read book Engineering Acoustics written by Michael Möser and published by Springer Science & Business Media. This book was released on 2009-09-01 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Suitable for both individual and group learning, Engineering Acoustics focuses on basic concepts and methods to make our environments quieter, both in buildings and in the open air. The author’s tutorial style derives from the conviction that understanding is enhanced when the necessity behind the particular teaching approach is made clear. He also combines mathematical derivations and formulas with extensive explanations and examples to deepen comprehension. Fundamental chapters on the physics and perception of sound precede those on noise reduction (elastic isolation) methods. The last chapter deals with microphones and loudspeakers. Moeser includes major discoveries by Lothar Cremer, including the optimum impedance for mufflers and the coincidence effect behind structural acoustic transmission. The appendix gives a short introduction on the use of complex amplitudes in acoustics.
Book Synopsis Building Wireless Community Networks by : Rob Flickenger
Download or read book Building Wireless Community Networks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Building Wireless Community Networks is about getting people online using wireless network technology. The 802.11b standard (also known as WiFi) makes it possible to network towns, schools, neighborhoods, small business, and almost any kind of organization. All that's required is a willingness to cooperate and share resources. The first edition of this book helped thousands of people engage in community networking activities. At the time, it was impossible to predict how quickly and thoroughly WiFi would penetrate the marketplace. Today, with WiFi-enabled computers almost as common as Ethernet, it makes even more sense to take the next step and network your community using nothing but freely available radio spectrum. This book has showed many people how to make their network available, even from the park bench, how to extend high-speed Internet access into the many areas not served by DSL and cable providers, and how to build working communities and a shared though intangible network. All that's required to create an access point for high-speed Internet connection is a gateway or base station. Once that is set up, any computer with a wireless card can log onto the network and share its resources. Rob Flickenger built such a network in northern California, and continues to participate in network-building efforts. His nuts-and-bolts guide covers: Selecting the appropriate equipment Finding antenna sites, and building and installing antennas Protecting your network from inappropriate access New network monitoring tools and techniques (new) Regulations affecting wireless deployment (new) IP network administration, including DNS and IP Tunneling (new) His expertise, as well as his sense of humor and enthusiasm for the topic, makes Building Wireless Community Networks a very useful and readable book for anyone interested in wireless connectivity.
Book Synopsis Modern Surface Organometallic Chemistry by : Jean-Marie Basset
Download or read book Modern Surface Organometallic Chemistry written by Jean-Marie Basset and published by Wiley-VCH. This book was released on 2009-08-10 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering everything from the basics to recent applications, this monograph represents an advanced overview of the field. Edited by internationally acclaimed experts respected throughout the community, the book is clearly divided into sections on fundamental and applied surface organometallic chemistry. Backed by numerous examples from the recent literature, this is a key reference for all chemists.
Author :Jean Goubault-Larrecq Publisher :Springer Science & Business Media ISBN 13 :9781402003684 Total Pages :448 pages Book Rating :4.0/5 (36 download)
Book Synopsis Proof Theory and Automated Deduction by : Jean Goubault-Larrecq
Download or read book Proof Theory and Automated Deduction written by Jean Goubault-Larrecq and published by Springer Science & Business Media. This book was released on 2001-11-30 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Interest in computer applications has led to a new attitude to applied logic in which researchers tailor a logic in the same way they define a computer language. In response to this attitude, this text for undergraduate and graduate students discusses major algorithmic methodologies, and tableaux and resolution methods. The authors focus on first-order logic, the use of proof theory, and the computer application of automated searches for proofs of mathematical propositions. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Wireless Hacks written by Rob Flickenger and published by "O'Reilly Media, Inc.". This book was released on 2003 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuing with the successful Hack Series, this title provides real-world working examples of how to make useful things happen with wireless equipment.
Book Synopsis Space-Time Coding for Broadband Wireless Communications by : Georgios B. Giannakis
Download or read book Space-Time Coding for Broadband Wireless Communications written by Georgios B. Giannakis and published by John Wiley & Sons. This book was released on 2007-02-26 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Eine vielversprechende Technologie zur Maximierung der Bandbreiteneffizienz in der breitbandigen drahtlosen Kommunikation ist die Raum-Zeit-Kodierung. Theorie und Praxis verbindend, ist dieses Buch die erste umfassende Diskussion von Grundlagen und designorientierten Aspekten von Raum-Zeit-Codes. Single-Carrier und Multi-Carrier-Übertragungen für Einzel- und Mehrnutzerkommunikation werden behandelt.
Book Synopsis Electric Machines and Drives by : Miroslav Chomat
Download or read book Electric Machines and Drives written by Miroslav Chomat and published by BoD – Books on Demand. This book was released on 2011-02-28 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this book is an important and diverse field of electric machines and drives. The twelve chapters of the book written by renowned authors, both academics and practitioners, cover a large part of the field of electric machines and drives. Various types of electric machines, including three-phase and single-phase induction machines or doubly fed machines, are addressed. Most of the chapters focus on modern control methods of induction-machine drives, such as vector and direct torque control. Among others, the book addresses sensorless control techniques, modulation strategies, parameter identification, artificial intelligence, operation under harsh or failure conditions, and modelling of electric or magnetic quantities in electric machines. Several chapters give an insight into the problem of minimizing losses in electric machines and increasing the overall energy efficiency of electric drives.
Book Synopsis Photovoltaic Engineering Handbook by : F Lasnier
Download or read book Photovoltaic Engineering Handbook written by F Lasnier and published by CRC Press. This book was released on 1990-01-01 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Photovoltaic Engineering Handbook is the first book to look closely at the practical problems involved in evaluating and setting up a photovoltaic (PV) power system. The author's comprehensive knowledge of the subject provides a wealth of theoretical and practical insight into the different procedures and decisions that designers need to make. Unique in its coverage, the book presents technical information in a concise and simple way to enable engineers from a wide range of backgrounds to initiate, assess, analyze, and design a PV system. It is beneficial for energy planners making decisions on the most appropriate system for specific needs, PV applications engineers, and anyone confronting the practical difficulties of setting up a PV power system.
Book Synopsis Global Warming and Climate Change by : Emma Carlson Berne
Download or read book Global Warming and Climate Change written by Emma Carlson Berne and published by Referencepoint Press. This book was released on 2008 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the world, the cause and impact of global warming and climate change is being passionately debated. While many claim that a climate crisis is imminent if greenhouse gases are not curbed, others argue that the effects have been overblown. Through objective overviews, primary sources, and full-color illustrations, this title will examine What Is Global Warming and Climate Change? What Are the Consequences of Global Warming? What Are the Controversies Surrounding Global Warming? What Are the Solutions for Global Warming?
