Название: Beginning LoRa Radio Networks with Arduino: Build Long Range, Low Power Wireless IoT Networks
Автор: Pradeeka Seneviratne
Издательство: Apress
Год: 2019
Формат: pdf/epub
Страниц: 316
Размер: 29.8 Mb
Язык: English

Create your own LoRa wireless projects for non-industrial use and gain a strong basic understanding of the LoRa technology, LoRa WAN, and LPWAN.
You'll start by building your first LoRa wireless channel and then move on to various interesting projects such as setting up networks with a LoRa gateway, communicating with IoT servers using RESTful API and MQTT protocol, and real-time GPS tracking.

Автор: Г.Г. Морозов, А.И. Поляков
Название: Элементы и аккумуляторы и применение их в установках связи
Издательство: М.: Воениздат
Год: 1933
Формат: DjVu
Страниц: 176
Размер: 14.1 Мb
Язык: русский

В книге кратко разобрана теория гальванических (первичных) элементов и аккумуляторов (вторичных элементов); описаны конструкции и приведены подробные данные о гальванических элементах и аккумуляторах, применяемых главным образом в военных установках связи; достаточно подробно освещен вопрос хранения и ухода за теми и другими.Кроме того кратко описаны типы выпрямителей, которые применяются для зарядки аккумуляторов, и разобраны главнейшие электрические измерения, с которыми приходится иметь дело при обслуживании химических источников тока.

Название: Microwave Polarizers, Power Dividers, Phase Shifters, Circulators and Switches
Автор: Joseph Helszajn
Издательство: Wiley-IEEE Press
ISBN: 1119490057
Год: 2018
Страниц: 400
Язык: английский
Формат: pdf (true)
Размер: 12.2 MB

Discusses the fundamental principles of the design and development of microwave satellite switches utilized in military, commercial, space, and terrestrial communication.
This book deals with important RF/microwave components such as switches and phase shifters, which are relevant to many RF/microwave applications. It provides the reader with fundamental principles of the operation of some basic ferrite control devices and explains their system uses. This in-depth exploration begins by reviewing traditional nonreciprocal components, such as circulators, and then proceeds to discuss the most recent advances.

Название: Arduino For Kids Young And Old
Автор: D W Milligan
Издательство: Milligan Photography
Год: 2014
Формат: ePUB
Страниц: 188
Для сайта: litmy.ru
Размер: 2 Mb
Язык: English
This book delves into the Arduino platform, in particular, the Arduino UNO, however all sketches should work fine with any Arduino platform. The primary goal of this book is to present the material in such a way to build upon itself so the reader can start with the basics and move onto more advanced topics. Another goal of the book was to try and use readily available parts which might be found at a local electronics store. In some cases, I had to order materials from online sellers however I tried to keep it to a minimum when possible. This book covers installing and getting started with the Arduino IDE and then building sketches to exercise a number of the features of the platform. Chapters include Input, Output, Interrupts, I/O expansion, and more. All sketches used in the book are available for download from the GitHub repository under the user name, milligan22963. Enjoy and let me know what you like and/or didn't like. If you have any questions or need assistance with any of the sketches, please email me using the link inside of the book. I have placed my email address in the first chapter for easy access.

Название: Orthogonal Waveforms and Filter Banks for Future Communication Systems
Автор: Markku Renfors
Издательство: Academic Press
Год: 2017
Формат: pdf
Страниц: 562
Для сайта: litmy.ru
Размер: 22,17 МБ
Язык: english

Orthogonal Waveforms and Filter Banks for Future Communication Systems provides an up-to-date account of orthogonal filter bank-based multicarrier (FBMC) systems and their applications in modern and future communications, highlighting the crucial role that advanced multicarrier waveforms play. It is an up-to-date overview of the theory, algorithms, design and applications of FBMC systems at both the link- and system levels that demonstrates the various gains offered by FBMC over existing transmission schemes via both simulation and test bed experiments. Readers will learn the requirements and challenges of advanced waveform design for future communication systems, existing FBMC approaches, application areas, and their implementation.

Автор: И.Г. Куликов
Название: Аккумуляторы
Издательство: М.: Воениздат
Год: 1961
Формат: DjVu
Страниц: 76
Размер: 3.96 Мb
Язык: русский

В книге «Аккумуляторы» в популярной форме изложены вопросы устройства и эксплуатации кислотных, щелочных и безламельных аккумуляторов. Даны сравнительные таблицы различных типов аккумуляторов, подробно рассмотрены вопросы зарядки, разрядки, хранения и ухода.

Автор: В.А. Орлов
Название: Малогабаритные источники тока
Издательство: М.: Воениздат
Год: 1970
Формат: DjVu
Страниц: 116
Размер: 3.21 Мb
Язык: русский

В книге описаны преобразователи различных видов энергии в электрическую. Изложены принципы действия, устройство, технические и эксплуатационные характеристики современных автономных источников тока: химических (элементы и аккумуляторы), полупроводниковых, атомных и других.
Приведен справочный материал по источникам тока, выпускаемым отечественной промышленностью, и способам их эксплуатации с целью помочь читателю решить задачу о выборе нужного источника тока.

Название: Low-cost Smart Antennas (Microwave and Wireless Technologies Series)
Автор: Qi Luo, Steven Shichang Gao, Wei Liu
Издательство: Wiley
Год: 2019
Формат: True PDF
Страниц: 288
Размер: 18.8 Mb
Язык: English

An authoritative guide to the latest developments for the design of low-cost smart antennas
Traditional smart antenna systems are costly, consume great amounts of power and are bulky size. Low-cost Smart Antennas offers a guide to designing smart antenna systems that are low cost, low power, and compact in size and can be applied to satellite communications, radar and mobile communications. The authors — noted experts on the topic — provide introductions to the fundamental concepts of antennas, array antennas and smart antennas. The book fills a gap in the literature by presenting the design techniques of low-cost radio frequency (RF) smart antennas as well as approaches for implementing the hardware of the antenna and the beamforming network (BFN).

Название: Raspberry Pi Computing: Temperature Measurement: Measure, record and display temperatures with a Raspberry Pi computer
Автор: Malcolm Maclean
Издательство: Amazon Digital Services LLC
Год: 2018
Формат: PDF
Страниц: 236
Размер: 12.8 Mb
Язык: English

Raspberry Pi Computing: Temperature Measurement aims to provide a full description of the process of setting up a Raspberry Pi computer to record multiple temperatures and to display them on a web page. We'll look at different versions of the Pi, along with loading and configuring the software required with some basic Linux use.

Название: FIRST Robots: Aim High
Автор: Vince Wilczynski and Stephanie Slezycki
Издательство: Rockport Publishers
Год: 2007
Формат: PDF
Размер: 101 Мб
Язык: английский / English

Personal robots are about as advanced today as personal computers were on the eve of the first IBM PC in the early 1980s. They are still the domain of hobbyists who cobble them together from scratch or from kits, join local clubs to swap code and stage contests, and whose labor of love is setting the stage for a technological revolution.