Название: Coherent Optical Wireless Communication Principle and Application
Автор: Xizheng Ke, Jiali Wu
Издательство: Springer/Science Press
Год: 2022
Страниц: 474
Язык: английский
Формат: pdf (true)
Размер: 17.6 MB

This book presents the key technologies of coherent optical wireless communication, covers topics such as beam coupling, signal optical polarization control and distorted wavefront correction. It discusses the principle of coherent optical communication and heterodyne detection conditions. In this book, the array coupling receiving technology and large aperture coupling technology are introduced to realize the spatial optical fiber coupling; simulated annealing algorithm, particle swarm optimization algorithm and SPO algorithm are used to control the polarization state of the signal beam; and the correction of distorted wavefront of the signal beam by adaptive optics technology and wavefront sensorless adaptive optics technology are analyzed, and the influence of beam mode on coherent detection performance is elaborated. Both theoretical deduction and experimental results are included in this book, which can help readers further understand the theoretical knowledge.

Название: Defected Ground Structure (DGS) Based Antennas: Design Physics, Engineering, and Applications
Автор: Debatosh Guha, Chandrakanta Kumar, Sujoy Biswas
Издательство: Wiley-IEEE Press
Год: 2023
Страниц: 323
Язык: английский
Формат: pdf (true)
Размер: 23.5 MB

Defected Ground Structure (DGS) Based Antennas a unique exploration of critical topics in defected ground structures and their applications. In Defected Ground Structure (DGS) Based Antennas: Design Physics, Engineering, and Applications , three distinguished authors deliver a comprehensive discussion of key topics related to defected ground structures (DGSs) and their applications to advanced antenna designs, including microstrips, arrays, dielectric resonators, PIFA, and printed monopoles. The book explores major advances in the technology that have occurred since 2006, as well as the fundamentals of the research in the subject. It also presents future possibilities for new researchers to assist in the development of new studies and technologies for practicing engineers and developers.

Название: Intelligent Reconfigurable Surfaces (IRS) for Prospective 6G Wireless Networks
Автор: Muhammad Ali Imran, Lina Mohjazi, Tie Jun Cui
Издательство: Wiley-IEEE Press
Год: 2023
Страниц: 296
Язык: английский
Формат: pdf (true), epub
Размер: 36.5 MB

Authoritative resource covering preliminary concepts and advanced concerns in the field of IRS and its role in 6G wireless systems. Intelligent Reconfigurable Surfaces (IRS) for Prospective 6G Wireless Networks provides an in-depth treatment of the fundamental physics behind reconfigurable metasurfaces, also known as intelligent reflecting surfaces (IRS), and outlines the research roadmap towards their development as a low-complexity and energy-efficient solution aimed at turning the wireless environment into a software-defined entity. The text demonstrates IRS from different angles, including the underlying physics, hardware architecture, operating principles, and prototype designs. It enables readers to grasp the knowledge of the interplay of IRS and state-of-the-art technologies, examining the advantages, key principles, challenges, and potential use-cases. Practically, it equips readers with the fundamental knowledge of the operational principles of reconfigurable metasurfaces, resulting in its potential applications in various intelligent, autonomous future wireless communication technologies.

Название: Apple Watch For Dummies, 6th Edition, 2023 Edition
Автор: Marc Saltzman
Издательство: For Dummies
Год: 2023
Страниц: 451
Язык: английский
Формат: pdf (true)
Размер: 52.5 MB

Stop looking at your phone―and start looking at your Apple Watch. Much more than a time-telling device, the Apple Watch is your very own wrist-sized computer. And Apple Watch For Dummies is the most trusted guide for new and upgrading users. Learn how to check your email, make a phone call, look at tomorrow's weather forecast, and track your calorie burn, all right on your wrist. Dummies helps you navigate the interface, use helpful Siri shortcuts, make wireless payments, and more. This 2023 Edition is fully updated for the latest version of the Apple Watch and watchOS.

Название: Optical Design for LED Solid State Lighting: A Guide
Автор: Ching-Cherng Sun, Tsung-Xian Lee
Издательство: IOP Publishing
Серия: IOP Series in Emerging Technologies in Optics and Photonics
Год: 2022
Страниц: 219
Язык: английский
Формат: pdf (true)
Размер: 47.1 MB

Light-emitting diodes (LEDs) are considered the most important light source of the 21st century owing to advantages of energy saving, long life, fast response, high colour performance, and environmental benefit. We believe that accurately understanding the light performances of LEDs and using them skilfully is an important capability for optical designers. The book covers seven chapters. The first chapter introduces the background of SSL and knowledge for readers that four-level optical technologies will be discussed throughout the book. Besides, radiometry and photometry, the essential knowledge for handling illumination of SSL, is introduced to the readers. The second chapter briefly introduces basic optics to the readers. This is useful for a reader without an optics background, and it is also helpful to a reader in strengthening the necessary optical knowledge. The third chapter discusses the light extraction of an LED.

Название: Raspberry Pi Tricks and Tips - 12th Edition, 2022
Автор: Papercut
Издательство: Papercut Ltd
Год: 2022
Страниц: 93
Язык: английский
Формат: pdf
Размер: 42.5 MB

Raspberry Pi Tricks And Tips is the first and only choice if you want to learn everything about the Pi from the ground up – where the only limitation is your imagination.

Название: Methods & Techniques in Deep Learning: Advancements in mmWave Radar Solutions
Автор: Avik Santra, Souvik Hazra, Lorenzo Servadei
Издательство: Wiley-IEEE Press
Год: 2023
Страниц: 332
Язык: английский
Формат: pdf (true)
Размер: 16.7 MB

Introduces multiple state-of-the-art Deep Learning architectures for mmwave radar in a variety of advanced applications. Methods and Techniques in Deep Learning: Advancements in mmWave Radar Solutions provides a timely and authoritative overview of the use of Artificial Intelligence (AI)-based processing for various mmwave radar applications. Focusing on practical Deep Learning techniques, this comprehensive volume explains the fundamentals of Deep Learning, reviews cutting-edge deep metric learning techniques, describes different typologies of reinforcement learning (RL) algorithms, highlights how domain adaptation (DA) can be used for improving the performance of Machine Learning (ML) algorithms, and more. Throughout the book, readers are exposed to product-ready Deep Learning solutions while learning skills that are relevant for building any industrial-grade, sensor-based Deep Learning solution.

Название: 3D Printing: Introduction to Accessible, Affordable Desktop 3D Printing
Автор: Tyler Kerr
Издательство: Springer
Год: 2022
Страниц: 183
Язык: английский
Формат: pdf (true), epub
Размер: 40.2 MB

This book is an introduction to the wide and varied world of 3D printing—an incredible technology used across an ever-growing list of industries. As 3D printing continues to skyrocket in popularity, it’s increasingly important to understand how these machines work and how to apply 3D printing technology to personal and professional interests. More important still, this book highlights how surprisingly easy 3D printers can be to use, even for readers who don’t consider themselves particularly tech-savvy. This book provides a comprehensive overview of 3D printing for first-time users. The text introduces some of the most popular types of 3D printing technology available, as well as some of the most exciting and compelling applications across industry today.

Название: Practical Models of Antenna Systems
Автор: Amur B. Khashimov, Rinat R. Salikhov
Издательство: Springer
Год: 2022
Страниц: 130
Язык: английский
Формат: pdf (true)
Размер: 10.3 MB

This book discusses the principles of forming and analysis of mathematical models of a wide class of antenna systems, new scientific directions in the development and application of computational algorithms for the study of mathematical models for antenna arrays of radio navigating systems. The book is presented for specialists in antenna system design; it may be useful for students of radio engineering specialties. This book consequentially uses the asymptotic correspondence of two-dimensional and three-dimensional problems to antenna engineering, that includes the influence of the placement objects for a given limited class of problems. Rigorous electrodynamics formulations of models and the use of efficient numerical methods provide the reliability and accuracy of modeling. The materials of the book may be useful to developers of antenna systems and students of radio engineering specialties.

Название: Nonlinear Channel Models and Their Simulations
Автор: Yecai Guo
Издательство: World Scientific Publishing
Год: 2022
Страниц: 449
Язык: английский
Формат: pdf (true)
Размер: 24.9 MB

This comprehensive compendium highlights the research results of nonlinear channel modeling and simulation. Nonlinear channels include nonlinear satellite channels, nonlinear Volterra channels, molecular MIMO channels, etc. This volume involves wavelet theory, neural network, echo state network, Machine Learning, support vector machine, chaos calculation, principal component analysis, Markov chain model, correlation entropy, fuzzy theory and other theories for nonlinear channel modeling and equalization. The useful reference text enriches the theoretical system of nonlinear channel modeling and improving the means of establishing nonlinear channel model. It is suitable for engineering technicians, researchers and graduate students in information and communication engineering, and control science and engineering, intelligent science and technology.