Third Generation And Wideband Hf Radio Communications
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Third Generation And Wideband Hf Radio Communications
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Author : Eric E. Johnson
language : en
Publisher: Artech House
Release Date : 2013
Third Generation And Wideband Hf Radio Communications written by Eric E. Johnson and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Technology & Engineering categories.
Wideband HF. Book jacket.
Machine Learning And Intelligent Communications
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Author : Xiangping Bryce Zhai
language : en
Publisher: Springer Nature
Release Date : 2019-10-27
Machine Learning And Intelligent Communications written by Xiangping Bryce Zhai and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-27 with Computers categories.
This volume constitutes the refereed post-conference proceedings of the Fourth International Conference on Machine Learning and Intelligent Communications, MLICOM 2019, held in Nanjing, China, in August 2019. The 65 revised full papers were carefully selected from 114 submissions. The papers are organized thematically in machine learning, intelligent positioning and navigation, intelligent multimedia processing and security, wireless mobile network and security, cognitive radio and intelligent networking, IoT, intelligent satellite communications and networking, green communication and intelligent networking, ad-hoc and sensor networks, resource allocation in wireless and cloud networks, signal processing in wireless and optical communications, and intelligent cooperative communications and networking.
Designing Rf Combining Systems For Shared Radio Sites
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Author : Ian Graham
language : en
Publisher: Artech House
Release Date : 2023-12-31
Designing Rf Combining Systems For Shared Radio Sites written by Ian Graham and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-31 with Technology & Engineering categories.
This book explores Radio Access Networks (RANs) within LMR systems, comprising base stations, mobile radios, and hand portable radios. These components facilitate communication among end users via a network of fixed base stations, antennas, and combining systems strategically placed across radio repeater sites throughout the coverage area. This resource also delves into the consequences of interference, highlighting the painstaking efforts required to diagnose and rectify interference issues through field testing and redesign. The central focus being on the design intricacies of base station antennas and combining systems at densely populated shared radio repeater sites. The book underscores how to identify potential sources of interference from co-located transmitters and receivers, effectively surveying sites to anticipate high-level interfering signals. This critical information forms the foundation for crafting base station antenna and combining systems that curtail interference, subsequently optimizing coverage and minimizing costs. Throughout its pages, the book lays out a detailed roadmap for designing LMR systems resilient to interference. By outlining essential principles and methodologies, the book guides practitioners in creating LMR networks that flawlessly align with end users' communication requirements. The resulting systems not only meet expectations but surpass them, offering the coverage area and communication quality demanded by public safety and utility organizations during critical operations. Ultimately, the book serves as an indispensable resource for engineers, designers, and professionals engaged in crafting LMR systems capable of delivering impeccable performance and reliability.
Signal Digitization And Reconstruction In Digital Radios
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Author : Yefim Poberezhskiy
language : en
Publisher: Artech House
Release Date : 2018-12-31
Signal Digitization And Reconstruction In Digital Radios written by Yefim Poberezhskiy and has been published by Artech House this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-31 with Technology & Engineering categories.
This comprehensive resource provides the latest information on digitization and reconstruction (D&R) of analog signals in digital radios. Readers learn how to conduct comprehensive analysis, concisely describe the major signal processing procedures carried out in the radios, and demonstrate the dependence of these procedures on the quality of D&R. The book presents and analyzes the most promising and theoretically sound ways to improve the characteristics of D&R circuits and illustrate the influence of these improvements on the capabilities of digital radios. The book is intended to bridge the gap that exists between theorists and practical engineers developing D&R techniques by introducing new signal transmission and reception methods that can effectively utilize the unique capabilities offered by novel digitization and reconstruction techniques.
Advanced High Frequency Radio Communications
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Author : Eric E. Johnson
language : en
Publisher: Artech House Publishers
Release Date : 1997
Advanced High Frequency Radio Communications written by Eric E. Johnson and has been published by Artech House Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Technology & Engineering categories.
This up-to-date, comprehensive reference and planner's guide presents an in-depth description of automated HF communications.
Homeland Security Technologies For The 21st Century
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Author : Ryan K. Baggett
language : en
Publisher: Bloomsbury Publishing USA
Release Date : 2017-04-17
Homeland Security Technologies For The 21st Century written by Ryan K. Baggett and has been published by Bloomsbury Publishing USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-04-17 with Political Science categories.
A comprehensive textbook that overviews common technologies utilized within the homeland security enterprise with an emphasis on contemporary homeland security mission areas and end-user applications. Designed for students entering or currently working in the safety, security, and emergency management disciplines in the public or private sectors, this textbook presents a broad array of homeland security technology types from the viewpoint of end-user applications and homeland security mission areas. The authors investigate various theories behind the use of technologies and assess the importance of technologies for achieving goals and objectives. The content includes not only technical capabilities but also a blend of sample applications of technologies using an all-hazards framework and use cases at all levels of practice, including both the public and private sectors. The authors provide an overview of preparedness applications; preventive and protective systems; and mitigation, response, and recovery technologies. Topics such as ethical and privacy concerns associated with implementing technologies and use of the Internet and social media receive special attention. In addition to readers directly involved in the security disciplines, this book will be useful for students in technical fields of study such as geographic information systems (GIS), computer science, or engineering who are seeking information on standards, theories, and foundations underlining homeland security technologies.
Hf Communications
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Author : Nicholas M Maslin
language : en
Publisher: CRC Press
Release Date : 2017-06-30
Hf Communications written by Nicholas M Maslin and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-30 with Technology & Engineering categories.
Communications using the high frequency spectrum (2-30 MHz) have experienced a considerable resurgence. In recent years, powerful microcomputers and VLSI technology have greatly enhanced the prospects of overcoming many of the unique problems that formerly afflicted the HF systems More...designer. The aim of this book, therefore, is to provide a fi
Software Radio Architecture
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Author : Joseph Mitola, III
language : en
Publisher: John Wiley & Sons
Release Date : 2004-04-07
Software Radio Architecture written by Joseph Mitola, III and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-04-07 with Technology & Engineering categories.
In einem sogenannten Software-Radio werden die Modulations-Wellenformen nicht durch herkömmliche elektronische Schaltungen, sondern durch eine Software erzeugt. Die so generierten digitalen Signale werden durch einen Breitband-D/A-Wandler in das gewünschte analoge modulierte Signal überführt. Grundlagen und Anwendungen der Technologie erläutert der Autor dieses Bandes, gestützt auf jahrelange Erfahrungen als Seminarleiter. (11/00)
Technical Handbook For Radio Monitoring Hf Volume Ii
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Author : Roland Proesch
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-05-17
Technical Handbook For Radio Monitoring Hf Volume Ii written by Roland Proesch and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-17 with Technology & Engineering categories.
The Technical Handbook for Radio Monitoring HF is aimed to shortwave listeners, who are interested in digital signals. On over 350 pages with many figures and tables most digital waveforms are described. The book shall help shortwave listener to identify these digital signals which can be heard today. Digital waveforms like FSK, PSK, DSSS aso. with the used protocols and alphabets are described with the help of spectrum and other pictures and the most important technical parameter. Additionally, comprehensive tables are helping to identify the different user on shortwave. To cover as much signals as possible the book is divided into two volumes.
Wideband Multi User Cooperative Networks
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Author : Etienne Auger
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2012
Wideband Multi User Cooperative Networks written by Etienne Auger and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Computers categories.
This book details promising communication schemes and channel modeling for a pervasive wireless access network (PWAN). Such a network is formed by nodes equipped with heterogeneous antenna arrangements and placed up to 10 m apart from each other. Nodes can be static when they belong to the infrastructure or have limited mobility when they are carried by a person. This scenario is extremely interesting for relay-based applications and fills the gap between the body area network that has a coverage up to 1 m and the wireless local area network that has a coverage up to 100 m. When a PWAN is jointly considered with high node density, it allows for node cooperations, and idle or infrastructure nodes can support the communication of source-destination pairs. With an adequate signaling scheme, the PWAN can operate as a virtual antenna array and ultimately achieve multiple-input multiple-output (MIMO) gains in a distributed way. Until now these networks have been studied using oversimplified channel models that were frequency flat and designed for cellular low node density networks. The novelty of this book is the study of a PWAN under realistic channel conditions and hardware constraints.