Satellite Communication Engineering (Signal Processing and by Michael O. Kolawole

By Michael O. Kolawole

This up to date reference offers an easy and concise review of the elemental ideas universal to info communications-highlighting satellite tv for pc and earth station layout, hyperlinks and conversation platforms, blunders detection and correction, and rules and approaches for procedure modeling, integrations, checking out, and overview. It offers a skill comparability of a number of entry methods."Satellite verbal exchange Engineering" discusses block and suggestions ciphering; covers orbital mistakes; evaluates geometric zone assurance and multi-beam satellite tv for pc networks; illustrates bus, electric, and mechanical platforms layout; analyzes process reliability and availability; elucidates reflector/lens, phased array, and helical antenna platforms; explores channel filters and multiplexers; explains low-noise and high-power amplifiers; assesses procedure means, expense, and availability antenna monitoring; considers fiber optic and microwave terrestrial hyperlinks; reports convolutional codes; addresses mobile cellular platforms; and, comprises end-of-chapter difficulties for additional research.

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All Rights Reserved. width of 1:73 with reduced coverage and increased gain, are used. This scheme permits multibeam satellite configuration. This scheme includes the following advantages: 1. 2. 3. 4. 4 Power is divided among the beams, and the bandwidth remains constant for each beam. As a result, the total bandwidth increases by the number of beams. Performance improves as the number of beams increases although limited by technology and the complexity of the satellite, which increases with the number of beams.

W. (1985). Elements of Digital Satellite Communication. Computer Science Press. PROBLEMS 1. The role of telecommunications networks has changed over the last decade. (a) Discuss the role of telecommunications networks in modern society. (b) How has this changed your perception in terms of security, social cohesion, and commerce? Copyright © 2002 by Marcel Dekker, Inc. All Rights Reserved. 2. Your task is to develop a communication network covering some inhospitable terrain. What sort of telecommunication infrastructure would you suggest?

5 À1     Re À1 Re ¼ sin h0 þ R e r Complete coverage of the earth’s surface from three satellites. Copyright © 2002 by Marcel Dekker, Inc. All Rights Reserved. 6 An illustration of coverage area and apex angle. Using empirical values (Re ¼ 6;378 km, r ¼ 42;162 km), the apex angle 2a equals 17:33 , the planar angle beamwidth. It follows that an ‘‘earth coverage’’ satellite antenna must have a minimum beamwidth yBW of 17:33 . In practice, an antenna of 18 or 19 beamwidth is used to allow for directional misalignment.

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