Communications Technology Handbook

Author: Geoff Lewis

Publisher: Taylor & Francis

ISBN: 1136025936

Category: Language Arts & Disciplines

Page: 480

View: 9630

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This is the first point of reference for the communications industries. It offers an introduction to a wide range of topics and concepts encountered in the field of communications technology. Whether you are looking for a simple explanation, or need to go into a subject in more depth, the Communications Technology Handbook provides all the information you need in one single volume. This second edition has been updated to include the latest technology including: Video on Demand Wire-less Distribution systems High speed data transmission over telephone lines Smart cards and batteries Global positioning Systems The contents are ordered initially by communications systems. This is followed by an introduction to each topic and goes on to provide more detailed information in alphabetical order. Every section contains an explanation of common terminology, and further references are provided. This approach offers flexible access to information for a variety of readers. Those who know little about communications professionals, the book constitutes a handy reference source and a way of finding out about related technologies. The book addresses an international audience by referring to all systems and standards throughout. This book has been revised to include new sections on: * Video on demand * Wire-less distribution systems * High speed data transmission over telephone lines * Smart cards * Global positioning systems * provides a basic understanding of a wide range of topics * offers a flexible approach for beginners and specialists alike * addresses an international audience by referring to all systems and standards throughout

The Design of Everyday Things

Psychologie und Design der alltäglichen Dinge

Author: Norman Don

Publisher: Vahlen

ISBN: 3800648105

Category: Business & Economics

Page: 320

View: 1531

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Apple, Audi, Braun oder Samsung machen es vor: Gutes Design ist heute eine kritische Voraussetzung für erfolgreiche Produkte. Dieser Klassiker beschreibt die fundamentalen Prinzipien, um Dinge des täglichen Gebrauchs umzuwandeln in unterhaltsame und zufriedenstellende Produkte. Don Norman fordert ein Zusammenspiel von Mensch und Technologie mit dem Ziel, dass Designer und Produktentwickler die Bedürfnisse, Fähigkeiten und Handlungsweisen der Nutzer in den Vordergrund stellen und Designs an diesen angepasst werden. The Design of Everyday Things ist eine informative und spannende Einführung für Designer, Marketer, Produktentwickler und für alle an gutem Design interessierten Menschen. Zum Autor Don Norman ist emeritierter Professor für Kognitionswissenschaften. Er lehrte an der University of California in San Diego und der Northwest University in Illinois. Mitte der Neunzigerjahre leitete Don Norman die Advanced Technology Group bei Apple. Dort prägte er den Begriff der User Experience, um über die reine Benutzbarkeit hinaus eine ganzheitliche Erfahrung der Anwender im Umgang mit Technik in den Vordergrund zu stellen. Norman ist Mitbegründer der Beratungsfirma Nielsen Norman Group und hat unter anderem Autohersteller von BMW bis Toyota beraten. „Keiner kommt an Don Norman vorbei, wenn es um Fragen zu einem Design geht, das sich am Menschen orientiert.“ Brand Eins 7/2013 „Design ist einer der wichtigsten Wettbewerbsvorteile. Dieses Buch macht Spaß zu lesen und ist von größter Bedeutung.” Tom Peters, Co-Autor von „Auf der Suche nach Spitzenleistungen“

Communications Receivers, Fourth Edition

Author: Ulrich L. Rohde,Jerry C. Whitaker

Publisher: McGraw Hill Professional

ISBN: 0071843345

Category: Technology & Engineering

Page: 656

View: 7597

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State-of-the-art communications receiver technologies and design strategies This thoroughly updated guide offers comprehensive explanations of the science behind today’s radio receivers along with practical guidance on designing, constructing, and maintaining real-world communications systems. You will explore system planning, antennas and antenna coupling, amplifiers and gain control, filters, mixers, demodulation, digital communication, and the latest software defined radio (SDR) technology. Written by a team of telecommunication experts, Communications Receivers: Principles and Design, Fourth Edition, features technical illustrations, schematic diagrams, and detailed examples. Coverage includes: • Basic radio considerations • Radio receiver characteristics • Receiver system planning • Receiver implementation considerations • RF and baseband techniques for Software-Defined Radios • Transceiver SDR considerations • Antennas and antenna coupling • Mixers • Frequency sources and control • Ancillary receiver circuits • Performance measurement

Verteilte Systeme

Konzepte und Design

Author: George F. Coulouris,Jean Dollimore,Tim Kindberg

Publisher: N.A

ISBN: 9783827371867

Category: Electronic data processing

Page: 869

View: 4271

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Communications Receivers: DPS, Software Radios, and Design, 3rd Edition

Author: Ulrich Rohde,Jerry Whitaker,Andrew Bateman

Publisher: McGraw Hill Professional

ISBN: 0071361219

Category: Technology & Engineering

Page: 656

View: 5863

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The latest in DSP, cellular, and software radio design From reception basics to cutting-edge software radio design, Communications Receivers, Third Edition brings you a storehouse of task-simplifying and task-clarifying information, examples, and tips. Written by well-known experts Ulrich Rohde, Jerry Whitaker, and Andrew Bateman, this guide covers everything from front end systems to frequency generators and controllers. Topics are thoroughly illuminated for you with hundreds of illustrations, diagrams, and mathematical equations. You’ll learn the principles and practices involved in receivers and receiver systems, antennas and antenna coupling, amplifiers and gain control, mixers, frequency, oscillators, demodulation and demodulators, digital signal processing, and much more. Discover for yourself why this resource has been prized through two editions by professionals and hobbyists for its ready-to-use insights on the theory and design of all types of communications receivers -- including shortwave, military, broadcast, and direction-finding. This newly revised edition features: Advances in DSP, cellular, and software radio design Details on designing, operating, specifying, installing, and maintaining every kind of receiver in common use Specific design approaches, circuit examples, and component specs Help with microprocessors and logic devices Coverage of important pulse and data operating modes More than 250 illustrations and diagrams Handy reference material in tables, charts, and figures More!

Principles of Electronic Communication Systems, 3rd Edition, Louis E. Frenzel Jr., 2008

Principles of Electronic Communication Systems

Author: The McGraw-Hill Companies, Inc

Publisher: Bukupedia

ISBN: N.A

Category: Technology & Engineering

Page: 945

View: 5591

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Preface This new third edition of Principles of Electronic Communication Systems is fully revised and updated to make it one of the most current textbooks available on wireless. networking, and other communications technologies. Because the field of electronic communications changes so fast. it is a never-ending challenge to keep a textbook up to date. While principles do not change, their emphasis and relevance do as technology evol ves. Furthermore. students need not only a firm grounding in the fundamentals but also an essential understanding of the real world components, circuits. equipment. and systems in everyday use. This latest edition attempts to balance the principles with an overview of the latest techniques. One of the major goals of this latest revision is to increase the emphasis on the system lel'el undersiCmding of wireless. networking. and other communications technologies. Because of the heavy integration of communications circuits today, the engineer and the technician now work more with printed circuit boards, modules. plug-in cards. and equipment rather than component level circuits. As a result, older obsolete circuits have been removed from this text and replaced with more integrated circuits and block diagram level analysis. Modem communications engineer~ and technician~ work with specifications and standards and spend their time testing, measuring. installing. and troubleshooting. This edition moves in that direction. Detailed circuit analysis is still included in selected area., where it proves useful in understanding the concepts and issues in current equipment. In the past, a course in communications was considered an option in many electronic programs. Today. communications is the largest sector of the electronics field with the most employees and the largest equipment sales annually. In addition, wireles. , networking or other communications technologies are now contained in almost every electronic product. This makes a J.-nowledge and understanding of communication a must rather than an option for every student. Witholll at least one course in communications, the student may graduate with an incomplete view of the products and systems so common today. This book can provide the background to meet the needs of' such a general course. As the Communications and Networking Editor for Electronic Design Magazine (Penton Media) and editor of the Wireless System Design Update online newsletter. I witness daily the continuous changes in the components. circuits. equipment, systems, and applications of modern communications. As I research the field. interview engineers and executives, and attend the many conferences for the articles and column<> I write. I have come to see the growing imponance of communications in all of our lives. I have tried to bring that perspective to this latest edition where the most recent techniques and technologies arc e.\.plained. That perspective coupled with the feedback and insight from some of you who teach this subject has resulted in a text that best fits the 21'>t century student. New to this Edition Here is a chapter-by-chapter summary of revisions and additions to this new edition. Chapter I Chapter 2 Chapter~ 3-6 Significant update of the applications section. Revised and updated section on filters. General editing and updating of circuits. • vii viii Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter II Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Preface Previously chapter 8 on Digital Communications Techniques. Extensive update of the section on data conversion to include new ADC and DAC circuits and expanded specifications section. DSP section has also been updated. Previously chapter 7 on Radio Transmitters. Expanded coverage of the 1/Q architecture for digital data transmission. Addition of broadband linear power amplifiers using feedforward and adaptive predistortion techniques. Addition of lSM band lC transmitters. The section on vacuum LUbe power amplifiers has been removed but will be available on line if anyone needs it. Expanded coverage of receiver sensitivity and signal to noise ratio, its importance and calculation. Increased coverage of the software-defined radio (SDR) and introduction to cognitive radio. Updated section on receiver circuits and transceivers. Description of a typical wireless LAN transceiver chip. Addition of code division multiple access. the Radio Data System and SCA subsystems in FM radios. Elimination of the older no-longer-used PAM telemetry system coverage. A new section on time and frequency division duplexing. Expanded coverage of digital modulation and spectral efficiency. Addition of an explanation of how different digital modulation schemes affect the bit error rate (BER) in communications systems. Comparisons based on BER vs. carTier to noise radio (C/N) are added. Updated sections on spread spectrum and OFDM. A new section on convolutional and turbo coding. Previous chapter 12 Computer Networking has been revised into a new chapter called Introduction to Networking and LANs. The coverage has been expanded and updated to include things like mesh networking fundamentals, the latest Ethernet standards including Power over Ethernet (PoE). and improved explanation of LAN equipment. Minor revisions and updates. Improved explanation of the near and far fields. introduction to the automatic antenna tuner. A new chapter focusing on the Internet. chapter 9 includes the Internet material from the previous chapter 12 but with extensive new material. Detailed explanation of how information travels via the Internet. Addition of descriptions of Internet core technologies like ATM, Frame Relay, and Sonet. Considerably expanded discussion of the TCP/IP protocol. Expanded explanation of routers including line cards and switch fabrics. Introduction of a new section on storage area networks (SANs) and their transmission technologies including Fibre Channel and iSCSl. A new section on Internet security including encryption and authentication. Extensively revised and updated. New material on microwave antennas including phased arrays, beam forming arrays, adaptive antennas. and the smaller ceramic and PC board antennas like the loop, meander line. and inverted-F. The concepts of diversity and muJtiple input multiple output (MIMO) are added. Revised and updated. New materials include a section on Very Small Aperture Terminals and expanded coverage of GPS. Elimination of the section on paging. Updated section on cordless phones. New section on voice over Internet protocol (YoiP) digital telephones. Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 New !>ection on MSA optical transceiver modules. types and specifications. Expanded section on electronic dispersion compensation. New section on pas!>ive optical networks (PONs) u~ed in fiber to the home (FITH) broadband systems. Thi~> is a new chapter on Cell Phone Technologies. It covers all major analog and digital cell phone standards and systems and frequency allocations. GSM, GPRS, and EDGE TDM systems are covered as well as both cdma2000 and WCDMA systems. Typical chips are reviewed. Fourth generation systems are introduced. A new chapter on wireless technologies. Coverage includes wireless LAN (802.11 alb/g/n), Bluetooth, Zig Bee. Ultra wideband (UWB). WiMAX, RFID, ncar field communications (NFC), JSM band short range radios. and infrared wireless. Coverage of personal area networks and mesh systems is included. Communication!> Tests and Measurement chapter is revised and updated. A new section on the widely used boundary scan and JTAG test system for chips and boards has been added. Television has been dropped from the book, but the chapter has been revised and updated, and placed on the Online Learning Center website for those who choose to assign it. It now includes new digital television information. new cable standards, and mobile (cell phone video) television standards. In a large book such as thi-., it's difficult to give every one what he or she wants. Some want more depth other!> greater breadth. J tried to strike a balance between the two. As always, l am always eager to hear from those of you who usc the book and welcome your suggestions for the next edition. learning Features Principles of Electronic Communic(lfion Systems third edition has been completely redesigned to give it a more attractive and accessible page layout. To guide readers and provide an integrated learning approach. each chapter contains the following features: • Chapter Objectives • Key Terms • Pioneers of Electronics articles • Good to Know margin features • Examples with solutions • Chapter Summary • Questions • Problems • Critical Thinking Student Resources Laboratory a Activities Manual A major change with this third edition is the availability of a new laboratory manual. The Lab Manual developed for the second edition will be retained for those of you who u~c it. This new Laboratory & Activities Manual provides more actual hands-on hardware experiments with modern circuits and components. While many circuiL'i arc still explored. the attempt is to push toward more systems-level experiments. Building a practical. affordable but meaningful lab is one of the more difficult pans of creating a college cour~e in communications. Thi::. new manual provides practice in the principles by Preface ix X u~ing the latest components and methods. Affordable and readily available components and equipment have been used to make it easy for professors to put together a communications lab that validates and complements the text. Many of the exercises in the Laborarory & Activities Manual involve web access and ~earch to build the ~tudent's ability to use the vast resources of the Internet and World Wide Web. The practical engineers and technicians of today have become experts at finding relevant information and answers to their questions and solutions to their problem<. this way. While practicing this essential ~kill of any communications engineer or technician knowledge. the ~tudent will be able to expand his or her knowledge of any of the subjects in this book, either to dig deeper into the theory and practice or get the latest update information on chips and other products. Online Learning Center ("OLC") website, www.mhhe.com/frenzcl3c Thi'> text-<,pccific site include~ a number of ~tudcnt-oriemed re~ources. including: • Chapter outlines and l.ummaries. • MultiSim version 9 Primer. for those who want to get up and running with this popular simulation software. The section is written to provide communications examples and applications. • MultiSim circuit file'> for communications electronics. • Web Links to indu'>trial and educational sites of intere!>t. • Lint... to the Work-Ready Electronics: these activities. created by the MATEC research center, show the practical skills needed in various area~ of interest-including communications-in the context of modern industry. Instructor Resources Instructor Productivity Center CD-ROM Thi~ CD includes the following resources for adopters of the text: • Answers and solutions to all text problems. • Answers and information for the Lab & Activity Manual. • Electronic test bank<, with a mix of questions for eacb text chapter. • PowerPoint presentation., for all chapters of the text. Online Learning Center ("OLC") website, www.mhhe.com/frenzel3e The OLC contains st udent resources. plus the following instructor resources: • Answers and solutions to the text problem.., and lab activities, under pa.,sword protection. • PowerPoint presentations for each chapter online. • Additional qui7 questions for each chapter. which can be as~igncd or used for student self-study. • Blackboard and WcbCT cartridges for usc with these popular classroom management systems. Classroom Performance Sy.,tem (CPS) from elnstruction is available for adopten.: its ··ctickcr"' system pro,ides a \Chicle for in-cla'os quizLing and concept reinforcement. and classroom management.

Van Nostrand's Scientific Encyclopedia

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Engineering

Page: N.A

View: 6891

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Coverage of major scientific topics including animal life, biosciences, chemistry, earth and atmospheric sciences, energy sources and power technology, mathematics and information sciences, materials and engineering sciences, medicine, anatomy, and physiology, physics, plant sciences, space and planetary sciences. Contains over 7,000 articles contributed by more than 250 experts

Data mining

praktische Werkzeuge und Techniken für das maschinelle Lernen

Author: Ian H. Witten,Eibe Frank

Publisher: N.A

ISBN: 9783446215337

Category:

Page: 386

View: 8418

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Verteilte Systeme

Prinzipien und Paradigmen

Author: Andrew S. Tanenbaum,Maarten van Steen

Publisher: N.A

ISBN: 9783827372932

Category: Distributed processing

Page: 761

View: 4780

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Practical RF Handbook

Author: Ian Hickman

Publisher: Elsevier

ISBN: 9780080465876

Category: Technology & Engineering

Page: 304

View: 3586

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Radio Frequency (RF) is the fundamental technology behind a huge range of modern consumer electronics and wireless communication devices, and this book provides a comprehensive and methodical guide to RF for engineers, technicians, enthusiasts and hobbyists with an interest in the electronics behind radio frequency communications. In Practical RF Handbook, Ian Hickman draws upon his own radio engineering background to develop a hands-on guide to the difficulties and pitfalls of RF design with a minimum of maths. A broad coverage includes devices, circuits, equipment, systems, radio propagation and external noise to fully acquaint the reader with the necessary circuit technologies and techniques. The fourth edition brings the book fully up-to-date with new advances in RF, including coverage of OFDM, UWB, WiFi and WiMax. * Practical coverage of the cutting-edge technology behind the fast-moving world of communications electronics * Real-world design guide for engineers, technicians and students, covering key principles with a minimum of maths * Updated throughout, including coverage of recent hot topics such as UWB, WiFi and WiMax

Make: Elektronik

Author: Charles Platt

Publisher: O'Reilly Germany

ISBN: 3897216019

Category: Electronic books

Page: 327

View: 6619

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Mochtest du Elektronik-Grundwissen auf eine unterhaltsame und geschmeidige Weise lernen? Mit Make: Elektronik tauchst du sofort in die faszinierende Welt der Elektronik ein. Entdecke die Elektronik und verstehe ihre Gesetze durch beeindruckende Experimente: Zuerst baust du etwas zusammen, dann erst kommt die Theorie. Vom Einfachen zum Komplexen: Du beginnst mit einfachen Anwendungen und gehst dann zugig uber zu immer komplexeren Projekten: vom einfachen Schaltkreis zum Integrierten Schaltkreis (IC), vom simplen Alarmsignal zum programmierbaren Mikrocontroller. Schritt-fur-Schritt-Anleitungen und uber 500 farbige Abbildungen und Fotos helfen dir dabei, Elektronik einzusetzen -- und zu verstehen.