Annex 1 Fade
countermeasures in satellite communication systems
1 Site diversity
operation
1.1
General design considerations
1.2
Site diversity switch-over operation
1.3
Diversity interconnect link
1.3.1 Basic configuration
1.3.2 Technical factors
1.3.3 General
considerations
2 Uplink
transmitting power control
2.1
Introduction
2.2
Implementation of UPC
2.2.1 Open-loop UPC
method
2.2.2 Closed-loop UPC
method
2.3
Uplink power control (UPC) experiment
2.4
Open-loop UPC using a radiometer
2.5
Conclusion
3 Adaptive
transmission systems
3.1
Introduction
3.2
Adaptive modulation systems
3.3
Adaptive coding system
3.4
Variable transmission rate system using spread spectrum and
synchronization sum techniques
3.5
Control algorithms
3.5.1 Signal quality
estimation
3.5.2 Signal quality
prediction
3.5.3 Radio format
selection
3.6
Conclusion
4 Fade
countermeasures using time division multiple access techniques (FCM-TDMA)
4.1
Introduction
4.2
Time space statistics of atmospheric fading at 30/20 GHz
4.3
Methods of using an expanded burst to provide a level of noise
immunity
4.4
System control
4.5
Conclusions
5 Frequency
diversity technique
5.1
Introduction
5.2
System analysis
5.3
Operation of adaptive control system and simulation results
5.4
Simulation results
5.5
Conclusion
6 List of
acronyms/abbreviations