VSATs : very small aperture terminals
著者
書誌事項
VSATs : very small aperture terminals
（IEE telecommunications series, 28）
Peregrinus on behalf of the Institution of Electrical Engineers, c1992
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内容説明・目次
内容説明
One of the most significant developments in telecommunications in the last decade, the very small aperture terminal (VSAT), as part of a satellite communications network, is the culmination of technology that allows earth terminals to be located on users' premises to provide data, voice and even video services. Networks based on VSATs can be established rapidly and reconfigured to respond to changing communications needs in a flexible and cost-effective manner.
In 28 chapters written by individuals who have made major contributions to the VSAT scene, Very Small Aperture Terminals describes the key technology underlying these systems, representative systems from leading vendors, link budgets, system protocols, data distribution based on television broadcasting, service provision, economic and, perhaps most importantly, regulatory issues.
Very Small Aperture Terminals is essential reading for anyone involved in telecommunications systems management or the engineering aspects, from equipment manufacturers to those who will use the systems. The technology and systems chapters will be of interest to practising engineers and postgraduate engineering students who require an introduction to the subject. Those with responsibilities for licensing and regulation will find their functions put into context.
目次
Chapter 1: Introduction to VSATs
Chapter 2: Antennas for VSAT systems
Chapter 3: Semiconductor devices for VSAT systems
Chapter 4: Travelling wave tubes and amplifiers for VSAT systems
Chapter 5: VSAT low noise downconverters
Chapter 6: Modems and codecs for VSAT systems
Chapter 7: Multiaccess protocols for VSAT networks
Chapter 8: Protocol software in Ku-band VSAT network systems
Chapter 9: VSAT data networks: system design
Chapter 10: The policing of VSAT networks
Chapter 11: The PANDATA system
Chapter 12: The PolyCom system
Chapter 13: APOLLO: a satellite-based information distribution system
Chapter 14: Data broadcasting within a satellite television channel
Chapter 15: The AT&T Tridom VSAT system
Chapter 16: The HNS family of VSAT systems
Chapter 17: The NEC NEXTAR VSAT system
Chapter 18: The Fastar VSAT system
Chapter 19: Satellite based messaging systems
Chapter 20: Ka-band VSAT system
Chapter 21: Small aperture military ground terminals
Chapter 22: Link budgets for VSAT systems
Chapter 23: VSATs and developmental communications
Chapter 24: VSATs and their international applications
Chapter 25: Capabilities and experience of a VSAT service provider
Chapter 26: Economic considerations between VSAT systems and terrestrial networks
Chapter 27: Developments in VSAT regulation
Chapter 28: VSATs: the future
Appendix A: Glossary
Appendix B: Civil satellite frequency bands
Appendix C: Satellites that may support VSAT services
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