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.
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.
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.
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.
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.
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.
Technical Abstract Bulletin
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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1964
Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Military art and science categories.
Is 95 Cdma And Cdma2000
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Author : Vijay K. Garg
language : en
Publisher: Pearson Education
Release Date : 1999-12-09
Is 95 Cdma And Cdma2000 written by Vijay K. Garg and has been published by Pearson Education this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-12-09 with Technology & Engineering categories.
The Next Generation: Wireless Communications for Multimedia and Beyond Of all wireless technologies for personal communications, Code Division Multiple Access (CDMA) offers the best combination of good signal quality, high security, low power consumption, and excellent system reliability. Features added in the IS-95 standard means this impressive list now also includes Third Generation (3G) data capabilities that will allow CDMA providers to offer Internet and intranet services for multimedia applications, high-speed business transactions, and telemetry. The upcoming cdma2000 standard will further expand usable bandwidth without sacrificing voice quality or requiring additional spectrum. In this book by an experienced telecommunications authority, you will learn how to maximize the power of CDMA, migrate existing systems to the newest standards, and prepare for a smooth transition to features yet to come. IS-95 CDMA and cdma2000: Cellular/PCS Systems Implementation covers all aspects of up-to-date CDMA implementation and operation, including: Coding and architecture Radio interface and call flow Physical, data link, and signaling layers Handoff and power control System security Wireless Data Reverse and Forward Link Capacity RF Engineering and network planning Evolution to Third Generation systems Practicing engineers and their managers will benefit from the in-depth coverage of IS-95 systems, RF engineering, and capacity planning. Students will appreciate the forward-looking approach that offers a look at the future of the industry where they are preparing for careers. IS-95 CDMA and cdma2000: Cellular/PCS Systems Implementation offers both practical applications information and conveniently organized reference materials for anyone interested in the next generation of wireless telecommunications.
U S Government Research Reports
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Author :
language : en
Publisher:
Release Date : 1962
U S Government Research Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Science categories.
Adaptive Wireless Transceivers
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Author : Lajos Hanzo
language : en
Publisher: Wiley-IEEE Press
Release Date : 2002-04-03
Adaptive Wireless Transceivers written by Lajos Hanzo and has been published by Wiley-IEEE Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002-04-03 with Technology & Engineering categories.
Adaptive Wireless Transceivers provides the reader with a broad overview of near-instantaneously adaptive transceivers in the context of TDMA, CDMA and OFDM systems. The adaptive transceivers examined employ powerful turbo codecs, turbo equalisers and space-time codecs, equipping the reader with a future-proof technological road map. It demonstrates that adaptive transceivers are capable of mitigating the channel quality fluctuations of the wireless channel as a lower-complexity alternative to space-time coding. By contrast, if the higher complexity of multiple transmitters and multiple receiver-assisted systems is deemed acceptable, the advantages of adaptability erode. Provides an in-depth introduction to channel equalisers and Kalman filtering and discusses the associated complexity versus performance trade-offs Introduces wideband near-instantaneously adaptive transceivers and studies their performance both with and without turbo channel coding Describes how to optimise adaptive modulation mode switching and highlights a range of practical considerations Introduces neural network based channel equalisers and discusses Radial Basis Function (RBF) assisted equalisers embedded into adaptive modems supported by turbo channel coding and turbo channel equalisation Employs the above adaptive principles also in the context of CDMA and OFDM transceivers and discusses the pros and cons of space-time coding versus adaptive modulation Researchers, advanced students and practising development engineers working in wireless communications will all find this valuable text an informative read.