Parametric tradeoffs were performed for candidate technologies to support an orbiting relay satellite for communication with spacecraft in deep-space in the early 21st century. Both RF and optical system architectures were examined with a methodology which equitably compared the performance and attractivness for the deep-space communication mission. Two candidate system architectures based on optical technologies were recommended for more detailed design - a system using coherent detection with an astronomical quality 4 meter telescope, and a system using direct detection with a 10 meter photon bucket telescope. Both of these systems appear capable of providing more than an order of magnitude improvement in communication performance over the DSN after it is upgraded to Ka Band.
Comparison of radio frequency and optical architectures for deep-space communications via a relay satellite
Vergleich zwischen Hochfrequenzarchitekturen und optischen Architekturen für die tiefe Weltraumkommunikation über einen Relaissatelliten
1994
18 Seiten, 12 Bilder, 6 Tabellen, 13 Quellen
Conference paper
English
Direct detection optical relay satellite for deep-space communication
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