Автор: Бертсекас Д., Галлагер Р.
Название: Сети передачи данных. Data Networks.
Издательство: М.: Мир
Год: 1989
ISBN: 5-03-000639-7
Язык: Русский
Формат: djvu
Размер: 21,6 Мб
Качество: хорошее, текстовый слой, оглавление.
Кол-во страниц: 544

Описание: Книга, предлагаемая вниманию читателей, посвящена сетям передачи данных. Материал был включен в ряд курсов для аспирантов Массачусетского технологического института и несколько коротких курсов различных уровней.

Название: Радіоаматор
Издательство: Радіоаматор
Качество: высокое
Страниц: №1-2 60, №3-12 32
Формат: №1-2 PDF, №3-12 True PDF
Размер файла: 87,9 МБ
Язык: украинский / українська

Журнал «Радіоаматор» - увлекательный путеводитель в мир радио для тех, кто ради увлечения либо по роду своей профессиональной деятельности работает в эфире, занимается разработкой и ремонтом разнообразных радиоэлектронных устройств. Это журнал для тех, кто привык работать со схемой на столе и с паяльником в руках, кто своим призванием считает практическую радиоэлектронику. Основные разделы журнала: аудио, видео, электроника, компьютер, КВ и УКВ радиосвязь, современные телекоммуникации.

Название: Автоматика,телемеханика и связь на железнодорожном транспорте
Автор: А. А. Устинский, Б. М. Степенский, Н. А. Цыбуля и др.
Издательство: М.: Транспорт
Год: 1985
Формат: PDF
Страниц: 439
Размер: 16.3 Мб
Язык: русский

Изложены принципы построения устройств автоматики, телемеханики и связи: автоматической блокировки, автоматической локомотивной сигнализации, электрической централизации, систем кодовой централизации, автоматической телефонной связи, многоканальной, технологической связи, передачи дискретной информации, радиосвязи, радиорелейной связи, телевидения и т. д. Большое внимание уделено вопросам эксплуатационного обслуживания этих устройств, безопасности движения поездов и экономической эффективности указанных средств.

Название: Signals and Systems, Second edition
Автор: S. Palani
Издательство: Springer, ANE Books
Год: 2022
Страниц: 1093
Язык: английский
Формат: pdf (true)
Размер: 10.1 MB

I have ventured to bring out the second edition of the book Signals and Systems in its new form due to the success and wide patronage extended to the previous edition and reprints by the members of the teaching faculty and student community. The present edition as in the previous edition covers the undergraduate syllabus in Signals and Systems for the B.E. degree courses. A thorough revision of all the chapters in the previous edition has been undertaken. Few errors noticed in the previous edition have been removed and appropriate corrections have been made. Signal representation is a vital topic to understand the importance of the theoretical concepts in Signals and Systems.

Название: The ARRL Extra Class License Manual for Ham Radio, 12th Edition
Автор: Ward Silver
Издательство: The American Radio Relay League, Inc
Год: 2020
Страниц: 496
Язык: английский
Формат: pdf
Размер: 17.9 MB

Go All the Way to the Top: Amateur Extra Class! The ARRL Extra Class License Manual for Ham Radio is your ticket to every privilege granted to amateur radio operators – all frequencies, operating modes, and power levels. It has all the questions and answers, with detailed explanations, for examinations taken between July 1, 2020 and June 30, 2024. To upgrade to Amateur Extra, you must already hold a General class license (or have recently passed all of the exams required for a General license). You are holding the key to your final step up the amateur radio license ladder! With full access to the entire amateur radio frequency spectrum, you will be permitted to operate using every privilege granted to amateurs by the Federal Communications Commission. Amateur radio or “ham radio” is one of the longest-lived wireless activities. There are more than 700,000 amateur radio operators or “hams” in the United States alone and several million more around the world!

Название: Digital Signal Processing for Wireless Communication using Matlab, Second Edition
Автор: E.S. Gopi
Издательство: Springer
Год: 2021
Страниц: 233
Язык: английский
Формат: pdf (true), epub
Размер: 50.5 MB

The updated book presents Matlab illustrations on various digital signal processing (DSP) techniques such as random process, time varying wireless system model, and detection and estimation theory used in wireless communication. The book also covers recent wireless techniques like OFDM, massive MIMO techniques, non-orthogonal multiple access, millimeter wave MIMO, full duplex, cognitive radio, co-operating communication, unmanned aerial vehicles etc. This book is suitable for those who are doing basic and applied research in digital signal processing for wireless communication.

Название: Emerging Evolutionary Algorithms for Antennas and Wireless Communications
Автор: Sotirios K. Goudos
Издательство: The Institution of Engineering and Technology
Год: 2021
Страниц: 342
Язык: английский
Формат: pdf (true)
Размер: 33.42 MB

Several evolutionary algorithms (EAs) have emerged in recent decades that mimic the behaviour and evolution of biological entities. EAs are widely used to solve single and multi-objective optimization engineering problems. EAs have also been applied to a variety of microwave components, antenna design, radar design, and wireless communications problems. These techniques, among others, include genetic algorithms (GAs), evolution strategies (ES), particle swarm optimization (PSO), differential evolution (DE), and ant colony optimization (ACO). In addition, new innovative algorithms that are not only biology-based but also physics-based or music-based are also emerging, as are hybrid combinations of EAs.

Название: RF CMOS Oscillators for Modern Wireless Applications
Автор: Masoud Babaie, Mina Shahmohammadi
Издательство: River Publishers
Год: 2019
Страниц: 238
Язык: английский
Формат: pdf (true)
Размер: 36.1 MB

While mobile phones enjoy the largest production volume ever of any consumer electronics products, the demands they place on radio-frequency (RF) transceivers are particularly aggressive, especially on integration with digital processors, low area, low power consumption, while being robust against process-voltage-temperature variations. Since mobile terminals inherently operate on batteries, their power budget is severely constrained. To keep up with the ever increasing data-rate, an ever-decreasing power per bit is required to maintain the battery lifetime. The RF oscillator is the second most power-hungry block of a wireless radio (after power amplifiers). Consequently, any power reduction in an RF oscillator will greatly benefit the overall power efficiency of the cellular transceiver.

Название: Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems
Автор: Chen Z., Qing X.
Издательство: Wiley-IEEE Press
Год: 2021
Страниц: 315
Язык: английский
Формат: pdf (true)
Размер: 18.8 MB

The first and only comprehensive text on substrate-integrated mmW antenna technology, state-of-the-art antenna design, and emerging wireless applications. Substrate-Integrated Millimeter-Wave Antennas for Next-Generation Communication and Radar Systems elaborates the most important topics related to revolutionary millimeter wave (mmW) technology. Following a clear description of fundamental concepts including substrate-integrated waveguides and loss analysis, the text treats key design methods, prototyping techniques, and experimental setup and testing. The authors also highlight applications of mmW antennas in 5G wireless communication and next-generation radar systems.

Название: End-to-End Mobile Communications: Evolution to 5G
Автор: Syed S. Husain, Athul Prasad
Издательство: McGraw-Hill Education
Год: 2020
Страниц: 352
Язык: английский
Формат: epub
Размер: 11.9 MB

Explore mobile communications and discover how the technology has evolved to 5G. This hands-on textbook lays out the foundations of mobile communications—from architecture to function—with a special focus on 5G services, networks, and applications. Written by a stellar team of academics and mobile networking practitioners, End-to-End Mobile Communications: Evolution to 5G clearly explains the latest capabilities, standards, and practices along with background and examples. The book contains a primer on the vast topic of mobile technology security and offers a look toward future trends and emerging technologies.