9. Communication Satellites

  1. Anil K. Maini and
  2. Varsha Agrawal

Published Online: 4 SEP 2010

DOI: 10.1002/9780470711736.ch9

Satellite Technology, Second Edition, Second Edition

Satellite Technology, Second Edition, Second Edition

How to Cite

Maini, A. K. and Agrawal, V. (2010) Communication Satellites, in Satellite Technology, Second Edition, Second Edition, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/9780470711736.ch9

Author Information

  1. Both of Laser Science and Technology Centre, Defence Research and Development Organization, Ministry of Defence, India

Publication History

  1. Published Online: 4 SEP 2010
  2. Published Print: 15 OCT 2010

ISBN Information

Print ISBN: 9780470660249

Online ISBN: 9780470711736

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Keywords:

  • communication satellites;
  • electromagnetic waves;
  • satellite data communication services;
  • satellite radio;
  • satellite telephony;
  • satellite television

Summary

Satellites are broadly classified as communication satellites, navigation satellites, weather forecasting satellites, Earth observation satellites, scientific satellites and military satellites. The application areas of communication satellites mainly include television broadcasting, international telephony and data communication services. Communication satellites act as repeater stations that provide either point-to-point, point-to-multipoint or multipoint interactive services. Communication satellites can be GEO satellites or a constellation of LEO, MEO or highly elliptical orbit (HEO) satellites. Satellite communication employs electromagnetic waves for transmission of information between Earth and space. Basic elements of a satellite communication system include the ground segment and the space segment. Satellites provide both long distance point-to-point trunk telephony services as well as mobile telephony services, either to complement or to bypass terrestrial networks. The role of communication satellites is expanding from the traditional telephony and TV broadcast services to newer horizons like secured user oriented data communication services.

Controlled Vocabulary Terms

electromagnetic waves; radio broadcasting; satellite communication; television broadcasting