682 resultater (0,38241 sekunder)

Mærke

Butik

Pris (EUR)

Nulstil filter

Produkter
Fra
Butikker

Virtual Radio Ga Ga, Youth and Net-Radio - Andrea Baker - Bog - Hampton Press Inc - Plusbog.dk

Global Radio - Shaheed Nick Mohammed - Bog - Lexington Books - Plusbog.dk

Global Radio - Shaheed Nick Mohammed - Bog - Lexington Books - Plusbog.dk

Global Radio: From Shortwave to Streaming chronicles the development of radio as a global medium. In this book, Shaheed Nick Mohammed examines the evolution of radio from its early uses as little more than a novelty into a set of powerful systems for international exchanges of news, culture, and political influence. In doing so, the book follows the development of radio as a wireless form of the telegraph, its evolution into a medium for sound transmission across the air, and its adaptation to digital networked audio and transmissions technologies. Mohamed also outlines the myriad changes in the radio industry in numerous contexts around the globe and over time, including the early development of commercial and non-commercial broadcasting in the United States, Europe, India, and China and the evolution of so-called “international broadcasters.” As radio played a part in colonial politics, it also figured prominently in the politics of the post-colonial. Within the broader context of global radio, this book examines several former colonies and the transformation of radio from a tool of empire into an instrument of national development. It also focuses on instances in which developing nations have used radio to bridge the gap between rural audiences and digital networked technologies, connecting them to the global information superstructure. Scholars of media studies, communication, radio studies, international relations, and political science will find this book particularly useful.

DKK 848.00
1

Fundamentals of Radio Astronomy - Jonathan Marr - Bog - Taylor & Francis Ltd - Plusbog.dk

Fundamentals of Radio Astronomy - Jonathan Marr - Bog - Taylor & Francis Ltd - Plusbog.dk

As demonstrated by five Nobel Prizes in physics, radio astronomy has contributed greatly to our understanding of the Universe. Yet for too long, there has been no comprehensive textbook on radio astronomy for undergraduate students. This two-volume set of introductory textbooks is exclusively devoted to radio astronomy, with extensive discussions of telescopes, observation methods, and astrophysical processes that are relevant for this exciting field. The first volume, Fundamentals of Radio Astronomy: Observational Methods , discusses radio astronomy instrumentation and the techniques to conduct successful observations. The second volume, Fundamentals of Radio Astronomy: Astrophysics , discusses the physical processes that give rise to radio emission, presents examples of astronomical objects that emit by these mechanisms, and illustrates how the relevant physical parameters of astronomical sources can be obtained from the radio observations. Requiring no prior knowledge of astronomy, the two volumes are ideal textbooks for radio astronomy courses at the undergraduate or graduate level, particularly those that emphasize radio wavelength instrumentation and observational techniques or the astrophysics of radio sources. The set enables instructors to pick and choose topics from the two volumes that best fit their courses. Features: - Explores radio astronomy instruments and techniques that are important to enable observations - Describes astrophysical processes that produce the radio emissions observed in different types of astronomical objects - Includes numerous worked examples to demonstrate how the methods are used to solve problems, in addition to advanced material for students with more extensive physics and mathematics backgrounds

DKK 884.00
1

Fundamentals of Radio Astronomy - Ronald Lee Snell - Bog - Taylor & Francis Inc - Plusbog.dk

Fundamentals of Radio Astronomy - Ronald Lee Snell - Bog - Taylor & Francis Inc - Plusbog.dk

As evidenced by five Nobel Prizes in physics, radio astronomy in its 80-year history has contributed greatly to our understanding of the universe. Yet for too long, there has been no suitable textbook on radio astronomy for undergraduate students. Fundamentals of Radio Astronomy: Observational Methods is the first undergraduate-level textbook exclusively devoted to radio astronomy telescopes and observation methods. This book, the first of two volumes, explains the instrumentation and techniques needed to make successful observations in radio astronomy. With examples interspersed throughout and problems at the end of each chapter, it prepares students to contribute to a radio astronomy research team. Requiring no prior knowledge of astronomy, the text begins with a review of pertinent astronomy basics. It then discusses radiation physics, the collection and detection of astronomical radio signals using radio telescopes, the functioning of various components of radio telescopes, and the processes involved in making successful radio observations. The book also provides a conceptual understanding of the fundamental principles of aperture synthesis and a more advanced undergraduate-level discussion of real-world interferometry observations. Web Resource A set of laboratory exercises is available for download on the book’s CRC Press web page. These labs use the Small Radio Telescope (SRT) and the Very Small Radio Telescope (VSRT) developed for educational use by MIT’s Haystack Observatory. The web page also includes a Java package that demonstrates the principles of Fourier transforms, which are needed for the analysis of interferometric data.

DKK 976.00
1

Recent Wireless Power Transfer Technologies via Radio Waves - - Bog - River Publishers - Plusbog.dk

Recent Wireless Power Transfer Technologies via Radio Waves - - Bog - River Publishers - Plusbog.dk

Wireless Power Transfer (WPT) is considered to be an innovative game changing technology. The same radio wave and electromagnetic field theory and technology for wireless communication and remote sensing is applied for WPT. In conventional wireless communication systems, information is “carried” on a radio wave and is then transmitted over a distance. In WPT however, the energy of the radio wave itself is transmitted over a distance. Wireless communication technology has proven to be extremely useful, however in future it should be even more useful to apply both wireless communication and wireless power technologies together.There are various WPT technologies, e.g. inductive near field WPT, resonance coupling WPT, WPT via radio waves, and laser power transfer. Recent Wireless Power Transfer Technologies via Radio Waves focusses on recent technologies and applications of the WPT via radio waves in far field. The book also covers the history, and future, of WPT via radio waves, as well as safety, EMC and coexistence of radio waves for WPT.Technical topics discussed in the book include: Radio Wave Generation Radio Wave Amplification with Solid States Circuit and Microwave Tubes Antenna and Beam Forming Technologies Radio Wave Conversion/Rectification to Electricity Battery-less Sensor Applications toward Internet of Things (IoT) Solar Power Satellite Application Safety, EMC, Coexistence of Radio Waves for the WPTWPT is an old technology based on the basic theory of radio waves, however WPT is also a state-of-the-art technology for the latest applications in IoT, sensor networks, wireless chargers for mobile phones, and solar power satellite. The theory behind these technologies, as well as applications, are explained in this book.

DKK 825.00
1

Foundations of Radio for Scientists and Technologists - Christopher John (university Of Adelaide) Coleman - Bog - Cambridge University Press -

George Orwell on the Radio - Tim Crook - Bog - Taylor & Francis Ltd - Plusbog.dk

Communication Systems Engineering with GNU Radio - Jean Michel Friedt - Bog - John Wiley & Sons Inc - Plusbog.dk

Communication Systems Engineering with GNU Radio - Jean Michel Friedt - Bog - John Wiley & Sons Inc - Plusbog.dk

An approachable guide to an invaluable radio frequency communication toolkit Software-defined radio (SDR), which emerged in the 1990s, has become a core development method in certain high-profile fields, including military and space communications. High cost and problems with hardware availability, however, prevented this technology from being widely disseminated. The advent of low-cost hardware beginning in the 2010s, however, has made GNU Radio—the leading open-source software toolkit for developing SDR systems—an increasingly viable and even critical tool for a new generation of radio frequency communication engineers. Communication Systems Engineering with GNU Radio provides an accessible overview of this toolkit and its applications. Beginning with the fundamentals of using GNU radio for digital signal processing, the volume then moves to the practicalities of decoding data and the advantages of accessing raw data normally unavailable in hardware-defined radio frequency receivers. The result is a potentially crucial tool for engineers looking to adopt this cost-effective and flexible standard for transmitting and processing radio frequency signals. Readers will also find: A careful balance of radio communications theory with GNU Radio practicalitiesPractical implementation examples employing well-developed open-source GNU Radio platformsExtensive accompanying documentation and explanation Communication Systems Engineering with GNU Radio is ideal for graduate and undergraduate students in communications systems courses, as well as professionals working in SDR.

DKK 953.00
1

Cooperative Radio Communications for Green Smart Environments - - Bog - River Publishers - Plusbog.dk

Cooperative Radio Communications for Green Smart Environments - - Bog - River Publishers - Plusbog.dk

The demand for mobile connectivity is continuously increasing, and by 2020 Mobile and Wireless Communications will serve not only very dense populations of mobile phones and nomadic computers, but also the expected multiplicity of devices and sensors located in machines, vehicles, health systems and city infrastructures. Future Mobile Networks are then faced with many new scenarios and use cases, which will load the networks with different data traffic patterns, in new or shared spectrum bands, creating new specific requirements. This book addresses both the techniques to model, analyse and optimise the radio links and transmission systems in such scenarios, together with the most advanced radio access, resource management and mobile networking technologies. This text summarises the work performed by more than 500 researchers from more than 120 institutions in Europe, America and Asia, from both academia and industries, within the framework of the COST IC1004 Action on "Cooperative Radio Communications for Green and Smart Environments". The book will have appeal to graduates and researchers in the Radio Communications area, and also to engineers working in the Wireless industry. Topics discussed in this book include: • Radio waves propagation phenomena in diverse urban, indoor, vehicular and body environments• Measurements, characterization, and modelling of radio channels beyond 4G networks• Key issues in Vehicle (V2X) communication• Wireless Body Area Networks, including specific Radio Channel Models for WBANs• Energy efficiency and resource management enhancements in Radio Access Networks• Definitions and models for the virtualised and cloud RAN architectures• Advances on feasible indoor localization and tracking techniques• Recent findings and innovations in antenna systems for communications• Physical Layer Network Coding for next generation wireless systems• Methods and techniques for MIMO Over the Air (OTA) testing

DKK 873.00
1

The Evolution of British Asian Radio in England - Gloria Khamkar - Bog - Springer International Publishing AG - Plusbog.dk

Cooperative Cognitive Radio Networks - Mohamed (queen's University Ibnkahla - Bog - Taylor & Francis Ltd - Plusbog.dk

Jazz Radio America - Aaron J. Johnson - Bog - University of Illinois Press - Plusbog.dk