Communication Services via Satellite

Communication Services via Satellite PDF

Author: Geoffrey E. Lewis

Publisher: Elsevier

Published: 2014-05-12

Total Pages: 401

ISBN-13: 1483183750

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Communication Services via Satellite: A Handbook for Design, Installation, and Service Engineers, Second Edition focuses on the innovations made by satellites in the field of communications. The publication first elaborates on basic concepts, noise and interference, and electromagnetic waves, propagation, and antennas. Discussions focus on frequency-selective surfaces and planar antennas, reflection, refraction, depolarization, and feeds, primary properties of antennas, energy in free space, comparison of noise factor and temperature, and system constraints imposed by transponder characteristics. The text then examines microwave circuit elements, digital signal processing, and digital and digital/analogue communications systems. Concerns include bandwidth compression video codec, satellite weather and environmental services, quadrature mirror filters and sub-band coding, baseband code formats, coupling to cavities and waveguides, and circulators and isolators. The manuscript takes a look at installation and servicing, information security and conditional access, television and radio audio channels, television receivers and distribution systems, and television systems. The publication is a dependable source of information for communication experts and researchers interested in the use of satellites in communications.

Space and the Global Village: Tele-services for the 21st Century

Space and the Global Village: Tele-services for the 21st Century PDF

Author: G. Haskell

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 282

ISBN-13: 9401148120

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Recent developments in telecommunications have led to new developments in tele-services, particularly tele-health and tele-education, for the benefit of those living in either the developed world or the less developed world. The benefits accrue to individuals and also to society at large. An international and interdisciplinary Symposium was organized by the International Space University to bring together technical and non-technical people to consider the future applications of space techniques to tele-services. The Proceedings of this Symposium are essential reading for all who need to appreciate the broad range of issues involved in this developing area.

Handbook on Satellite Communications

Handbook on Satellite Communications PDF

Author: International Telecommunications Union

Publisher: John Wiley & Sons

Published: 2002-04-04

Total Pages: 1123

ISBN-13: 0471221899

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An essential overview of satellite communications from the organization that sets the international standards Since their introduction in the mid-1960s, satellite communications have grown from a futuristic experiment into an integral part of today's "wired world." Satellite communications are at the core of a global, automatically switched telephony network. Assembled by the International Telecommunication Union--the international organization that sets the standards for this rapidly growing industry--the Handbook on Satellite Communications, Third Edition brings together basic facts about satellite communications as related to the fixed-satellite service (FSS). It covers the main principles, technologies, and operation of equipment in a tutorial form. Updated to include the latest technologies and information, the Third Edition provides both the standards and technical information needed to implement and interact with satellite communication systems, including: * The components and basic characteristics of a satellite communication system * Regulatory considerations and system planning * SDH and ATM satellite transmissions * Analog and digital baseband signal processing and multiplexing * Carrier modulation techniques * Geostationary and non-geostationary systems * Interconnection of satellite and terrestrial networks * LEOS satellite networks and other recent developments As digital modulation and transmission replace analog techniques, and as satellites in non-geostationary and lower-altitude orbits open the way to new applications, satellite communications will continue to grow in use and importance. Everyone involved in the administration and operation of satellite communications will find this a crucial resource.

NASA in the World

NASA in the World PDF

Author: John Krige

Publisher: Springer

Published: 2013-08-20

Total Pages: 353

ISBN-13: 1137340932

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Since its inception, NASA has participated in over 4,000 international projects, yet historians have almost entirely neglected this remarkable aspect of the agency's work. This groundbreaking work is the first to trace NASA's history in a truly international context, drawing on unprecedented access to agency archives and personnel.