Synchronisation and acquisition problems for SDMA/SS-TDMA - Results of hardware studies
Abstract
A new system called the SDMA/SS-TDMA (Space Division Multiple Access/Spacecraft Switched Time Division Multiple Access) system is proposed as a large-capacity satellite communication system based on the TDMA system. Since the satellite-borne switching sequence provides an absolute reference differing from the conventional TDMA system, a scheme of synchronization and acquisition peculiar to the SDMA system is necessary. These various technical items on the earth station FSBC (Frame and Sync Burst Control) timer, which handles the synchronization and acquisition to the satellite switch, have been studied previously by Asahara et al. (1974). Based on these study results, an FSBC timer has been developed and experimented in the laboratory. This paper describes the various experimental results of the SDMA/SS-TDMA system, particularly focusing on the synchronization accuracy and acquisition time.
- Publication:
-
Institution of Electrical Engineers Proceedings
- Pub Date:
- 1975
- Bibcode:
- 1975IEEP..126..220A
- Keywords:
-
- Communication Satellites;
- Data Acquisition;
- Switching;
- Synchronism;
- Time Division Multiplexing;
- Ground Stations;
- Multichannel Communication;
- Phase Shift Keying;
- Satellite Communication;
- Satellite Networks;
- Systems Engineering;
- Communications and Radar