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Файл:3-курс ВО-английский-Unit_8.doc
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- •51Communication satellites and systems Part I 51.1-51.3.2 (Background)
- •51.1 Background
- •51.2 International regulations 51.2.1 Frequency bands
- •51.2.2 Constraints on frequency assignments
- •51.3 Spacecraft technology
- •51.3.1 Orbits
- •51.3.2 Launchers and launching
- •Part II 51.3.3-51.3.6 (Orbital perturbations and their correction)
- •51.3.3 Orbital perturbations and their correction
- •51.3.4 Attitude stabilisation
- •51.3.5 Electrical power supply in space
- •51.3.6 Telemetry, tracking and command
- •Part III 51.4.1-51.4.3(The communication chain)
- •51.4 The communication chain
- •51.4.1 The chain in outline
- •51.4.2 Space-earth Propagation
- •51.4.3 The transponders
- •Part IV 51.4.4-51.5( Satellite antennas and footprints)
- •51.4.4 Satellite antennas and footprints
- •51.4.5 Modulation techniques
- •51.4.6 Multiple access methods
- •51.5 Applications
- •Part V 51.6.1-51.7(Satellite systems)
- •51.6 Satellite systems
- •51.6.1 Trunk telecommunications
- •51.6.2 Thin route telecommunications
- •51.6.3 Satellite communication for mobile stations
- •51.7 Future developments
- •51.8 Acknowledgements
51.8 Acknowledgements
The author wishes to thank the Commission of the European Communities for making this work possible and Mr D Withers for his assistance.
Exercise 1.
Look through the text and write down all terms referring to communication satellites and systems.
Exercise2.
Read the text and translate it. Consult a dictionary. Be ready to translate the text in class in written form. (Translation-test)
Exercise3.
Make an oral report on one of the following problems:
The INTELSAT global network.
The main advantages of satellite communication for mobile stations.
Future developments of satellite communication.
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