Spatial Telecommunications

Objectifs

This course insists on the communications, data transmissions and payloads techniques, provided on satellites environment. In particular the performance of link and its power balance sheet in the context of TDMA, FDMA, CDMA (Time, Frequency, Code Division Multiple Access) is exposed. The problematic of the tropospheric and ionospheric propagation effect will be explained. The proposed case study will allow to apprehend the rough value of the present characteristic parameters. The earth station aspect and the main mission of Satellitecommunication will be presented, as VSAT (Very Small Aperture Terminal) Application, Broadcast and Internet / Multicast Service.

Participants

Engineers and executives.

Contenu

1. Introduction, Definition, Characteristics of Space System :
  • Main Missions and Services.

  • R.F Link and Principles.

  • Characteristics of a SAT and Payload.

  • Launcher.

2. Space and Satellites Environment :
  • On board Receivers / Transmitters.

  • Antenna.

  • General propagation effects.

  • Spectral Management and organisation.

3. Communications and Access Techniques for Physical Layers :
  • Budget / Balance sheet and associated performances of a link satellite transmission.

  • Multiple Access, problematic (TDMA, FDMA, CDMA) of network.

  • Example and Case study of ink Power Budget.

4. Earth Stations :
  • Standard Architecture.

  • Antenna, RF Equipment.

5. Aeronautical mobile satellite Systems :
  • Standards, service and performances.

  • Systems concepts and architectures (LEO/GEO).

  • Overview of ground and airborne components (AES/GES).

6. Provided Service of Communication :
  • Broadcast Service (Multimedia Application).

  • Provision with VSAT Implementation.

  • Mobile Earth Satation.

  • Quality of service.

For information only : 26 hours