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Communications satellites : the technology of space communications /
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
London :
Heinemann,
1987.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Communications Satellites: The Technology of Space Communications; Copyright Page; Dedication; Preface; Table of Contents; List of photographs; Acknowledgements; Introduction; Chapter 1. Getting a crate into orbit; Chapter 2. The geosynchronous orbit; Chapter 3. From low orbit to geosynchronous altitude; Chapter 4. Disturbances in orbit; Chapter 5. Turning a crate into a satellite; Staying in one place-station-keeping; Lining up to the Earth-'pointing'; Electrical power; Thermal control; Nearly a working satellite; Chapter 6. On-board communications equipment; Transponders.
- AntennasThe complete satellite; Chapter 7. Logarithms and decibels; Chapter 8. Radio frequencies and wavelengths, and their allocations; Fixed services; Broadcast services; Mobile services; Chapter 9. Coverage, gain and EIRP; Chapter 10. Earth stations; Types, construction and sizes; Performance; Up-link transmission; Pointing an Earth station; Chapter 11. Traffic capacity and quality; Quality; EIRP and G/T; Space loss; Boltzmann's constant; Capacity; Other losses; Estimating traffic capacity and quality; Chapter 12. Selecting a satellite; Chapter 13. Economic system optimisation.
- Access methodsModulation techniques; Compression techniques; Encryption; Echo and delay; Chapter 14. Encryption; One-way functions; Modulo arithmetic; Example of encryption and decryption; Scrambling; Chapter 15. Operational systems; Chapter 16. The economics of satellite communications; Satellite prices; System prices; System income and profit; User profit; Chapter 17. Future trends; Satellite size; Sun-pointing satellites; Solar arrays; Batteries; Transponder efficiency; Antennas; Satellite switching; Operating frequencies; Low noise amplifiers; Modulation and compression techniques.
- Fibre opticsEconomics; Further reading; Appendix: Manufacturers and owners; Index.