• Stephan C.Pascall, David J.Withers
  • Издательство: Reed Educational and Professional Publishing Ltd
  • ISBN: 0750612355
  • Год издания: 1997
  • Кол.страниц: 471
  • Язык: английский
  • Формат: PDF
  • Размер: 9.4 Mb
Information, exchange of knowledge, and communications are of vital importance in economic activity. Policy makers are therefore concentrating on ways of acquiring, processing, storing and transmitting information. Telecommunications, as an information conveyor, are critical for influencing the ‘nervous system’ of modern society. Users’ needs are continually evolving. Fortunately, systems which meet those evolving needs are also emerging. The established terrestrial telecommunications networks tend to be rather slow to respond to these new opportunities to serve society. Satellite communication as a transmission medium is particularly flexible and consequently it is more able to support such innovations.
  • Frank B.Gross
  • Издательство: McGraw-Hill
  • ISBN: 0071588957
  • Год издания: 2005
  • Кол.страниц: 288
  • Язык: английский
  • Формат: PDF
  • Размер: 1.3 Mb
The subject of smart antennas is beginning to enjoy immense popularity due to the current exponential growth in all forms of wireless communications and sensing. This rapid growth has been facilitated by advancing digital signal processing hardware and also by the global interest in wideband wireless applications. Many in the wireless communication world are hoping to utilize smart antennas to boost capacities, expand bandwidths, increase signal-to-interference ratios, mitigate fading, and improve MIMO communications. Many others in the defense community are hoping to utilize smart antennas to help facilitate secure communications, direction finding, waveform diversity applications, MIMO radar, and multi-mission operations. Both groups are looking to use the benefits of smart antennas for similar reasons but are approaching the subject from different requirements and perspectives. This text has been written in the hopes of providing each group with a fundamental understanding of smart antennas without needing to tie the treatment to any one specific application.
  • Павлов Б.А.
  • Издательство: Энергия
  • Год издания: 1977
  • Кол.страниц: 80
  • Язык: русский
  • Формат: DJVU
  • Размер: 1.3 Мб
В книге изложены основы метода (синхронного детектирования), обеспечивающего помехоустойчивый и избирательный прием. Рассмотрена работа отдельных узлов синхронного демодулятора.
Приведены описания промышленных и радиолюбительских конструкций синхронных приемников. Книга рассчитана на подготовленных радиолюбителей.

  • Gary Mazo, Martin Trautschold
  • Издательство: Apress
  • ISBN: 1430231238
  • Год издания: 2010
  • Кол.страниц: 603
  • Язык: английский
  • Формат: PDF
  • Размер: 37.5 Мб
You’re a proud owner of the bestselling smartphone in the world. Now learn how to make use of all of the Curve’s features with this easy-to-read guide from two of the best BlackBerry trainers in the business.

BlackBerry Curve Made Simple teaches you how to get the most out of your BlackBerry Curve 8500 and Curve 3G 9300 series smartphone. You’ll explore all of the features and uncover time-saving techniques—from emailing and scheduling to GPS mapping and using apps—all through easy-to-read instructions and detailed visuals. Written by two successful BlackBerry trainers and authors, this is simply the most comprehensive and clear guidebook to the BlackBerry Curve 8500 series smartphones available.
  • Israel Cohen, Jacob Benesty, Sharon Gannot
  • Издательство: Springer
  • ISBN: 3642111297
  • Год издания: 2010
  • Кол.страниц: 342
  • Язык: английский
  • Размер: 9.09 Mb
Modern communication devices, such as mobile phones, teleconferencing systems, VoIP, etc., are often used in noisy and reverberant environments. Therefore, signals picked up by the microphones from telecommunication devices contain not only the desired near-end speech signal, but also interferences such as the background noise, far-end echoes produced by the loudspeaker, and reverberations of the desired source. These interferences degrade the fidelity and intelligibility of the near-end speech in human-to-human telecommunications and decrease the performance of human-to-machine interfaces (i.e., automatic speech recognition systems). The proposed book deals with the fundamental challenges of speech processing in modern communication, including speech enhancement, interference suppression, acoustic echo cancellation, relative transfer function identification, source localization, dereverberation, and beamforming in reverberant environments.
  • Gary Mazo, Martin Trautschold
  • Издательство: Apress
  • ISBN: 978-1-4302-3192-9
  • Год издания: 2010
  • Кол.страниц: 838
  • Язык: английский
  • Формат: PDF
  • Размер: 62.4 Мб
Congratulations—you’ve purchased the new iPhone 4, the coolest smartphone on the market. Now it’s time to learn how to take advantage of all the features, apps, and secret techniques available. To accomplish this, look no further than iPhone 4 Made Simple. Over 1,000 screen visuals and clear-cut instructions guide you through both basic and advanced features of the iPhone 4, from email and calendar tips to navigating the App Store and understanding Bluetooth and Wi-Fi networks. Written by two successful smartphone trainers and authors, this is the go-to guide for the latest and greatest version of the iPhone.
  • Patrick J. Sweeney II
  • Издательство: Wiley
  • ISBN: 978-0-7645-7910-3
  • Год издания: 2005
  • Кол.страниц: 408
  • Язык: английский
  • Формат: PDF
  • Размер: 9,6 Мб
RFID (Radio Frequency Identification) is a new supply chain management system that will eventually take the place of traditional barcode scanning. Many companies have already announced their shift to RFID technology and even more will shortly follow suit. This means that other businesses will have to implement RFID at their end.
  • Бакланов И.Г.
  • Издательство: Эко-Трендз
  • Год издания: 1999
  • Язык: русский
  • Формат: DJVU
  • Размер: 3,9 Мб
Рассмотрены практические аспекты и вопросы, характерные для всех технологий измерений в современных цифровых системах связи.
На основе анализа развития измерительных технологий рассмотрены особенности системного и эксплуатационного измерительного оборудования, методы и методология измерений основных параметров различных цифровых каналов, систем передачи сигналов и сред, включая электрические, оптические, радио...
  • Jeremy Alessi
  • Издательство: Course Technology
  • ISBN: 978-1-4354-5478-1
  • Год издания: 2010
  • Кол.страниц: 433
  • Язык: английский
  • Формат: PDF
  • Размер: 16.9 Мб
This is a complete guide to iPhone and iPod Touch game development. Beginning with the basics and ending with a finished game published in the App store this book covers all the fundamentals. The combined strength of Unity and the iPhone development platform are used to full effect allowing even complete novices to create and publish an iPhone game.

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Полное руководство по iPhone и iPod Touch для разработки игр
  • Erica Sadun, Michael Grothaus, Steve Sande
  • Издательство: Apress
  • ISBN: 1430231084
  • Год издания: 2010
  • Кол.страниц: 441
  • Язык: английский
  • Формат: PDF
  • Размер: 15 Мб
It looks different. It acts different. There’s no right way to hold it. It responds to the touch of your fingertips. It’s the Internet in your lap. It connects to the world, yet it is as personal as a well-worn book.

Taking Your iPad to the Max is written so that anyone, from a computer- savvy teenager to a 92 year-old great-grandmother, can quickly get up to speed on Apple’s latest hit. As bloggers at The Unofficial Apple Weblog (tuaw.com), we have the happy privilege of working with Apple products every day. The iPad is so different from any computer you’ve ever used, and we realize many people could use a helping hand, to feel comfortable buying and using an iPad. We take you from selecting and buying an iPad, to connecting it to the Internet, and then demonstrate just how to use the incredible power of the iPad and all its apps to enhance your life.

Whether you’re using your iPad to surf the Internet, admire family photos, listen to music, watch movies, or read a book, we’re here to guide you. We show you how your iPad can be a virtual shopping mall, opening the door to purchases of music, books, videos, and movies. We help you organize your daily life through the use of Calendar, Notes, and Contacts, communicate with friends and colleagues with Mail, and find your way with Maps.
  • David Pogue
  • Издательство: O’Reilly
  • ISBN: 978-1-449-39365-6
  • Год издания: 2010
  • Кол.страниц: 450
  • Язык: английский
  • Формат: PDF
  • Размер: 22.5 Мб
By way of a printed guide to the iPhone, Apple provides only a fold-out leaflet. It’s got a clever name—Finger Tips—but to learn your way around, you’re expected to use an electronic PDF document. This PDF covers the basics well, but it’s largely free of details, hacks, workarounds, tutorials, humor, and any acknowledgment of the iPhone’s flaws. You can’t mark your place, underline, or read it in the bathroom.
The purpose of this book, then, is to serve as the manual that should have accompanied the iPhone. (If you have an original iPhone, you really need one of this book’s earlier editions. If you have an iPhone 3G or 3GS, this book assumes that you’ve installed the free iOS 4 software, described in Appendix A.)
Writing computer books can be an annoying job. You commit something to print, and then—bam—the software gets updated or revised, and suddenly your book is out of date.
That will certainly happen to this book. The iPhone is a platform. It’s a computer, so Apple routinely updates and improves it by sending it new software bits. To picture where the iPhone will be five years from now, just look at how much better, sleeker, and more powerful today’s iPod is than the original 2001 black-and-white brick. Therefore, you should think of this book the way you think of the first iPhone: as a darned good start.

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Подробнейшие руководство по iPhone.
  • Wallace B. McClure, Rory Blyth, Craig Dunn, Chris Hardy, Martin Bowling
  • Издательство: Wrox
  • ISBN: 978-0470637821
  • Год издания: 2010
  • Кол.страниц: 386
  • Язык: английский
  • Формат: PDF
  • Размер: 13.2 Мб
iPhone applications offer a hot opportunity for developers. Until the open source MonoTouch project, this field was limited to those familiar with Apple’s programming languages. Now .NET and C# developers can join the party. Professional iPhone Programming with MonoTouch and .NET/C#is the first book to cover MonoTouch, preparing developers to take advantage of this lucrative opportunity.

This book is for .NET developers that are interested in creating native iPhone applications written in .NET/C#. These developers want to use their existing knowledge. While .NET developers are always interested in learning, they also recognize that learning Objective-C and the specifics of the iPhone can be overwhelming. Those developers interested in MonoTouch will recognize that the cost of MonoTouch is easily made up by the ability to quickly target the iPhone using a language that they are already familiar with.

This book is designed for .NET developers that want to target the iPhone. It is designed to help you get up to speed with the iPhone, not to really teach you about the .NET Framework or C# language, which we assume you already know.

This book is designed with introductory material in Chapters 1 thru 4. You should read Chapters 1 thru 4 sequentially. These chapters introduce the MonoTouch product, the basics of developing with MonoTouch and MonoDevelop, and finally, the basics of presenting data to a user with screen and data controls and how to develop a user interface for the iPhone. Once you are comfortable with these concepts, you can typically move from one chapter to another and not necessarily have to read the chapters sequentially.
  • Carol Hamer, Andrew Davison
  • Издательство: Apress
  • ISBN: 1430227184
  • Год издания: 2010
  • Кол.страниц: 505
  • Язык: английский
  • Формат: PDF
  • Размер: 10.6 Мб
BlackBerry smart phones aren’t just for business. In fact, throw away that boring spreadsheet, tear up that yearly budget report—the BlackBerry is a lean, mean game-playing machine. Carol Hamer and Andrew Davison, expert software game developers, show you how to leverage the BlackBerry Java™ Development Environment (based on Java ME) to design and create fun, sophisticated game applications from role playing to dueling with light sabers. The BlackBerry: not as clumsy or as random as a blaster—an elegant device, for a more civilized age.

In this book, Carol and Andrew give you the professional techniques you need to use music, 2D and 3D graphics, maps, and game design patterns to build peer-to-peer games, role playing games, and more for the BlackBerry.
What you’ll learn
How to build a custom user interface with your game’s theme
How to take your graphics to the next level with SVG and OpenGL ES
How to boogie on down with a MMAPI music player
How to optimize your games with BlackBerry-specific APIs and tools
How to program games for any BlackBerry device, from the earliest Java-enabled smartphones to models that run the latest BlackBerry 5 operating system
How to build games for two players or the whole world with GPS, SMS, and the Internet
How to create space adventures that may confound your mind with their awesomeness.
How to drive a toy sports car from your BlackBerry using Bluetooth and USB
How to sell your game on BlackBerry App World and beyond
Who this book is for

This book is for game enthusiasts and software engineers who know at least a bit of Java and want to program games for the BlackBerry. No prior knowledge of Micro Edition programming is required.
  • Куприянов А.И., Сахаров А.В.
  • Издательство: Вузовская книга
  • Год издания: 2007
  • Язык: русский
  • Формат: DJVU
  • Размер: 5,2 Мб
Рассматриваются радиоэлектронные системы и средства, функционирующие в условиях информационного противоборства, когда ведется радиоэлектронная разведка, организуется радиопротиводействие, применяется радиомаскировка и защита от специально организованных радиопомех.
Для специалистов в области радиоэлектронной борьбы, а также для студентов и аспирантов радиотехнических специальностей вузов.
  • Баркун М.А., Ходасевич О.Р.
  • Издательство: Эко-Трендз
  • Год издания: 2001
  • Язык: русский
  • Формат: PDF
  • Размер: 3,2 Мб
В настоящей книге рассмотрены основы построения современных цифровых АТС, использующих принципы синхронной цифровой коммутации. Особое внимание уделено принципам построения цифровых коммутационных полей, анализу их эффективности и особенностям функционирования. Приведены характеристики основных стыков (интерфейсов), цифровых АТС, изложены принципы сигнализации и синхронизации, применяемые на телефонных сетях. Рассмотрены структуры и приведены технические данные наиболее распространенных цифровых АТС, а также учрежденческих цифровых АТС зарубежного и отечественного производства.
Книга предназначена для широкого круга читателей, работников отрасли связи, инженерного состава отделов и подразделении связи, а также изучающих телекоммуникационную технику.