Название: Mutual Coupling Between Antennas
Автор: Trevor S. Bird
Издательство: Wiley
Год: 2021
Страниц: 459
Язык: английский
Формат: pdf (true), epub
Размер: 49.7 MB

A guide to mutual coupling between various types of antennas in arrays such as wires, apertures and microstrip patches or antennas co-sited on platforms. Mutual Coupling Between Antennas explores the theoretical underpinnings of mutual coupling, offers an up-to-date description of the physical effects of mutual coupling for a variety of antennas, and contains techniques for analysing and assessing its effects. The book puts the topic in historical context, presents an integral equation approach, includes the current techniques, measurement methods, and discusses the most recent advances in the field.

Название: Fun projects with Raspberry Pi: Theory, circuits, coding and everything you need for amazing Raspberry Pi projects
Автор: Rodrigo S.A.
Издательство: Steadman Thompson
Год: 2021
Страниц: 98
Язык: английский
Формат: pdf, epub
Размер: 10.1 MB

It is not easy to explain the meaning of a board like Raspberry Pi for nerds, geeks, coders and anyone involved in technology. On one side, Raspberry Pi is a mini computer and the size substantially changes all possibilities. A mini computer could be placed in a car dashboard or integrated into a kitchen appliance. A mini computer has also minimum power requirements. You can use it with batteries. On the other side, Raspberry Pi has input and output pins capable of being used to connect devices. From programming point of view, this book uses Python due to the simplicity and power. You can mount all projects just by typing the code or you can learn some Python to modify and extend the capabilities. Some projects of this book have electronic components or external parts like push buttons, Leds, relays and all the information about them is also provided.

Название: Pulse Width Modulation In Power Electronics
Автор: Isaak Mayergoyz, Siddharth Tyagi
Издательство: World Scientific Publishing
Год: 2021
Страниц: 419
Язык: английский
Формат: pdf (true), epub
Размер: 26.2 MB

This book provides a theoretical discussion of pulse width modulation (PWM) in power electronic inverters. Pulse width modulation is widely used for the frequency control of speed of ac motors, the design of uninterruptible power supplies (UPS) as well as the integration of renewable energy sources into existing power grid systems. PWM technique is based on approximation of sinusoidal waveforms by sequences (trains) of rectangular pulses whose widths are properly modulated. This width-modulation results in the suppression of low order harmonics at the expense of amplification of high order harmonics which are suppressed by energy-storage elements in load circuits.

Название: Волоконный оптический гироскоп
Автор: Шереметьев А.Г.
Издательство: М.: Радио и связь
Год: 1987
Формат: pdf
Страниц: 153
Размер: 14,6 Mb
Язык: Русский

Рассматриваются принцип действия, конструкция и характеристики перспективного волоконно-оптического гироскопа. Оцениваются схемные варианты, точность, элементная база, прибора, его эксплуатационно-технические параметры и выходные характеристики, возможности использования в системах управления и навигации.

Название: Algorithms and Architectures for Cryptography and Source Coding in Non-Volatile Flash Memories
Автор: Malek Safieh
Издательство: Springer
Год: 2021
Формат: ePUB, PDF
Страниц: 155
Размер: 11 Mb
Язык: English

In this work, algorithms and architectures for cryptography and source coding are developed, which are suitable for many resource-constrained embedded systems such as non-volatile flash memories. A new concept for elliptic curve cryptography is presented, which uses an arithmetic over Gaussian integers. Gaussian integers are a subset of the complex numbers with integers as real and imaginary parts. Ordinary modular arithmetic over Gaussian integers is computational expensive. To reduce the complexity, a new arithmetic based on the Montgomery reduction is presented.

Название: Next-Generation Antennas: Advances and Challenges
Автор: Prashant Ranjan, Dharmendra Kumar Jhariya, Krishna Kumar
Издательство: Wiley-Scrivener
Год: 2021
Страниц: 304
Язык: английский
Формат: pdf (true), epub
Размер: 35.8 MB

Antenna design and wireless communication has recently witnessed their fastest growth period ever in history, and these trends are likely to continue for the foreseeable future. Due to recent advances in industrial applications as well as antenna, wireless communication, and 5G technology, we are witnessing a variety of developing and expanding new technologies. Compact and low-cost antennas are increasing the demand for ultra-wide bandwidth in next-generation (5G) wireless communication systems and the Internet of Things (IoT). Enabling the next generation of high-frequency communication, various methods have been introduced to achieve reliable high data rate communication links and enhance the directivity of planar antennas. 5G technology can be used in many applications, such as in smart city applications and in smartphones. This technology can satisfy the fast rise in user and traffic capacity in mobile broadband communications.

Название: Reeds VHF Handbook
Автор: Andy Du Port
Издательство: Reeds, Bloomsbury Publishing
Год: 2021
Страниц: 161
Язык: английский
Формат: pdf (true), epub
Размер: 48.3 MB

The Reeds VHF Handbook is an accessible, user friendly but comprehensive guide to marine VHF radio that helps users quickly get up to speed with all the functions on their equipment. Straightforward explanations and tips describe the leisure VHF DSC radio system in detail and its place within GMDSS. This brand new book incorporates all the information required to pass the Short Range Certificate, which is compulsory for anyone using a VHF DSC radio, and forms part of the process of obtaining the Day Skipper qualification. The book covers radio procedure, channel allocation, VHF radio theory and more, along with a full explanation of GMDSS, including details on EPIRBs, SARTs and Navtex. The Reeds VHF Handbook is an essential onboard reference, and set to become the standard work on the subject.

Название: Organic Semiconductors for Optoelectronics
Автор: Hiroyoshi Naito
Издательство: Wiley
Год: 2021
Страниц: 387
Язык: английский
Формат: pdf (true)
Размер: 12.6 MB

Comprehensive coverage of organic electronics, including fundamental theory, basic properties, characterization methods, device physics, and future trends. Organic semiconductor materials have vast commercial potential for a wide range of applications, from self-emitting OLED displays and solid-state lighting to plastic electronics and organic solar cells. As research in organic optoelectronic devices continues to expand at an unprecedented rate, organic semiconductors are being applied to flexible displays, biosensors, and other cost-effective green devices in ways not possible with conventional inorganic semiconductors.

Название: Visible Light Communication: A Comprehensive Theory and Applications with MATLAB
Автор: Suseela Vappangi, Vakamulla Venkata Mani
Издательство: CRC Press
Год: 2022
Страниц: 503
Язык: английский
Формат: pdf (true)
Размер: 14.4 MB

The field of visible light communication (VLC) has diverse applications to the end user including streaming audio, video, high-speed data browsing, voice over internet and online gaming. This comprehensive textbook discusses fundamental aspects, research activities and modulation techniques in the field of VLC. Visible Light Communication: A Comprehensive Theory and Applications with MATLAB® discusses topics including line of sight (LOS) propagation model, non-line of sight (NLOS) propagation model, carrier less amplitude and phase modulation, multiple-input-multiple-output (MIMO), non-linearities of optical sources, orthogonal frequency-division multiple access, non-orthogonal multiple access and single-carrier frequency-division multiple access in depth.

Название: Handbook of Radar Signal Analysis
Автор: Bassem R. Mahafza, Scott C. Winton
Издательство: CRC Press
Год: 2022
Страниц: 707
Язык: английский
Формат: pdf (true)
Размер: 27.1 MB

This new handbook on radar signal analysis adopts a deliberate and systematic approach. It uses a clear and consistent level of delivery while maintaining strong and easy-to-follow mathematical details. The emphasis of this book is on radar signal types and their relevant signal processing and not on radar systems hardware or components. This handbook serves as a valuable reference to a wide range of audience. More specifically, college-level students, practicing radar engineers, as well as casual readers of the subject are the intended target audience of the first few chapters of this book. As the book chapters progress, these grow in complexity and specificity. Accordingly, later chapters are intended for practicing engineers, graduate college students, and advanced readers. Finally, the last few chapters contain several special topics on radar systems that are both educational and scientifically entertaining to all readers.