Onboard processing for millimeter-wave personal satellite communications system
Abstract
The present investigation of the implementation of a mm-wave personal satellite communications system by the first decade of the next century notes that it is necessary to develop a lightweight onboard processor capable of furnishing demand assignment for the 100 channels/beam that would be required to assign, for 20 beams, over 2000 channels; these would serve over 200,000 users. An onboard processor with baseband switching allows a choice to be made as to the best scheme for up and down links. Proof-of-concept digital demodulators, and a multichannel group frequency demultiplexer, have been constructed for the onboard processor.
- Publication:
-
Space Technology and Science
- Pub Date:
- 1990
- Bibcode:
- 1990spte.conf.1747K
- Keywords:
-
- Communication Satellites;
- Demand Assignment Multiple Access;
- Onboard Data Processing;
- Switching Circuits;
- Frequency Stability;
- Ground Stations;
- Millimeter Waves;
- Space Communications, Spacecraft Communications, Command and Tracking