Author: Milton Israel
Publisher: Cambridge University Press
ISBN: 9780521467636
Category : History
Languages : en
Pages : 356
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Book Description
At the end of the First World War, Government of India officials and Indian nationalist politicians began to recognise the need for an organized communications network that could reach out to a large and diverse Indian population. The challenge for Government and nationalists alike was to create an effective propaganda machine that could both disseminate news and, at the same time, elicit the desired political response. Milton Israel's 1994 book describes the role of the press, news services and propaganda agencies in the last stage of the nationalist struggle in India before the departure of the British, emphasizing the media's participation in the development of a 'national' perspective. Within this context, the author examines the significance of the encounter between imperialism and nationalism and the influence one had upon the other in achieving often conflicting objectives.
Author: Steve C. Cripps
Publisher: Artech House Publishers
ISBN: 9781596930186
Category : Technology & Engineering
Languages : en
Pages : 456
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Book Description
This extensively revised edition offers a comprehensive, practical, up-to-date understanding of how to tackle a power amplifier design with confidence and quickly determine the cause of malfunctioning hardware.
Author: Basile L. Agba
Publisher: Springer
ISBN: 331991328X
Category : Technology & Engineering
Languages : en
Pages : 203
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Book Description
This book consists of the identification, characterization, and modeling of electromagnetic interferences in substations for the deployment of wireless sensor networks. The authors present in chapter 3 the measurement setup to record sequences of impulsive noise samples in the ISM band of interest. The setup can measure substation impulsive noise, in wide band, with enough samples per time window and enough precision to allow a statistical study of the noise. During the measurement campaign, the authors recorded around 120 noise sequences in different substations and for four ranges of equipment voltage, which are 25 kV, 230 kV, 315 kV and 735 kV. A characterization process is proposed, by which physical characteristics of partial discharge can be measured in terms of first- and second-order statistics. From the measurement campaign, the authors infer the characteristics of substation impulsive noise as a function of the substation equipment voltage, and can provide representative parameters for the four voltage ranges and for several existing impulsive noise models. The authors investigate in chapters 4 and 5 the modeling of electromagnetic interferences caused by partial discharge sources. First, the authors propose a complete and coherent approach model that links physical characteristics of high-voltage installations to the induced radio-interference spectra of partial discharge sources. The goodness-of-fit of the proposed physical model has been measured based on some interesting statistical metrics. This allows one to assess the effectiveness of the authors' approach in terms of first- and second-order statistics. Chapter 6 proposes a model based on statistical approach. Indeed, substation impulsive noise is composed of correlated impulses, which would require models with memory in order to replicate a similar correlation. Among different models, we have configured a Partitioned Markov Chain (PMC) with 19 states (one state for the background noise and 18 states for the impulse); this Markov-Gaussian model is able to generate impulsive noise with correlated impulse samples. The correlation is observable on the impulse duration and the power spectrum of the impulses. Our PMC model provides characteristics that are more similar to the characteristics of substation impulsive noise in comparison with other models, in terms of time and frequency response, as well as Probability Density Functions (PDF). Although PMC represents reliably substation impulsive noise, the model remains complex in terms of parameter estimation due to a large number of Markov states, which can be an obstacle for future wireless system design. In order to simplify the model, the authors decrease the number of states to 7 by assigning one state to the background noise and 6 states to the impulse and we call this model PMC-6. PMC-6 can generate realistic impulses and can be easily implemented in a receiver in order to mitigate substation impulsive noise. Representative parameters are provided in order to replicate substation impulsive noise for different voltage ranges (25-735 kV). Chapter 7, a generalized radio-noise model for substations is proposed, in which there are many discharges sources that are randomly distributed over space and time according to the Poisson field of interferers approach. This allows for the identification of some interesting statistical properties of moments, cumulants and probability distributions. These can, in turn, be utilized in signal processing algorithms for rapid partial discharge's identification, localization, and impulsive noise mitigation techniques in wireless communications in substations. The primary audience for this book is the electrical and power engineering industry, electricity providers and companies who are interested in substation automation systems using wireless communication technologies for smart grid applications. Researchers, engineers and students studying and working in wireless communication will also want to buy this book as a reference.
Author: Hendrik C. Ferreira
Publisher: John Wiley & Sons
ISBN: 1119956285
Category : Technology & Engineering
Languages : en
Pages : 454
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Book Description
Power Line Communications (PLC) is a promising emerging technology, which has attracted much attention due to the wide availability of power distribution lines. This book provides a thorough introduction to the use of power lines for communication purposes, ranging from channel characterization, communications on the physical layer and electromagnetic interference, through to protocols, networks, standards and up to systems and implementations. With contributions from many of the most prominent international PLC experts from academia and industry, Power Line Communications brings together a wealth of information on PLC specific topics that provide the reader with a broad coverage of the major developments within the field. Acts as a single source reference guide to PLC collating information that is widely dispersed in current literature, such as in research papers and standards. Covers both the state of the art, and ongoing research topics. Considers future developments and deployments of PLC
Author: United States. Congress. House. Interstate and Foreign Commerce
Publisher:
ISBN:
Category :
Languages : en
Pages : 312
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Book Description
Author: Xavier Carcelle
Publisher: Artech House
ISBN: 1596933364
Category : Computers
Languages : en
Pages : 349
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Book Description
Here's everything you want to know about PLC technology, theory, applications, and installation organized for you in the first definitive English-language book on the subject. You get a solid theoretical grounding on this emerging alternative to Wi-Fi and Ethernet together with best-practice examples of PLC deployments and down-to-business procedures to install PLC in the home, design large-scale PLC networks for businesses and communities, and choose the right technology and equipment for any application. A state-of-the-art reference, how-to guide, and problem-solver wrapped up in one complete source, this benchmark work brings you quickly up to speed on PLC network architecture, functionalities, security issues, and applications. You get details on PLC modems, transformers, and other equipment along with PLC installation and configuration guidelines that cover everything from choosing the topology for a PLC network to configuring parameters under Windows or Linux/BSD. The book spells out steps to install PLC in homes followed by design and configuration procedures for PLC business networks that cover all issues involving network architecture, standard and equipment selection, security, and other essentials. The book also explores the development of community-wide PLC networks and the emergence of hybrid PLC-Ethernet-Wi-Fi applications. Supported by real-world examples and 280 illustrations, this hands-on resource takes you to the cutting edge of power line communications and helps you tap its rich potential moving forward.
Author: National Academies of Sciences, Engineering, and Medicine
Publisher: National Academies Press
ISBN: 0309676835
Category : Science
Languages : en
Pages : 75
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Book Description
Electric power is a critical infrastructure that is vital to the U.S. economy and national security. Today, the nation's electric power infrastructure is threatened by malicious attacks, accidents, and failures, as well as disruptive natural events. As the electric grid evolves and becomes increasingly interdependent with other critical infrastructures, the nation is challenged to defend against these threats and to advance grid capabilities with reliable defenses. On November 1, 2019, the National Academies of Sciences, Engineering, and Medicine convened a workshop to gather diverse perspectives on current and future threats to the electric power system, activities that the subsector is pursuing to defend itself, and how this work may evolve over the coming decades. This publications summarizes the presentations and discussions from the workshop.
Author: Patrick Reynaert
Publisher: Springer Science & Business Media
ISBN: 1402051174
Category : Technology & Engineering
Languages : en
Pages : 259
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Book Description
This book tackles both high efficiency and high linearity power amplifier (PA) design in low-voltage CMOS. With its emphasis on theory, design and implementation, the book offers a guide for those actively involved in the design of fully integrated CMOS wireless transceivers. Offering mathematical background, as well as intuitive insight, the book is essential reading for RF design engineers and researchers and is also suitable as a text book.
Author: Zhancang Wang
Publisher: Artech House
ISBN: 1608077845
Category : Technology & Engineering
Languages : en
Pages : 363
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Book Description
Envelope tracking technology is seen as the most promising efficiency enhancement technology for RF power amplifiers for 4G and beyond wireless communications. More and more organizations are investing and researching on this topic with huge potential in academic and commercial areas. This is the first book on the market to offer complete introduction, theory, and design considerations on envelope tracking for wireless communications. This resource presents you with a full introduction to the subject and covers underlying theory and practical design considerations.
Author: Karl D. Jackson
Publisher: Univ of California Press
ISBN: 9780520042056
Category : Political Science
Languages : en
Pages : 452
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Book Description
