Experimental advanced mobile satellite communications system in mm-wave and Ka-band using Japan's COMETS

Details Experimental advanced mobile satellite communications system in mm-wave and Ka-band using Japan's COMETS Experimental advanced mobile satellite communications system in mm-wave and Ka-band using Japan's COMETS

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991esasp.332..487i&link_type=abstract

In ESA, Second European Conference on Satellite Communications (ECSC-2) p 487-490 (SEE N92-15210 06-32)

Physics

Extremely High Frequencies, Infrared Filters, Millimeter Waves, Mobile Communication Systems, Regeneration (Engineering), Satellite Communication, Transponders, Vsat (Network), Broadcasting, Japanese Space Program, Modems, Multibeam Antennas, Onboard Data Processing, Single Channel Per Carrier Transmission, Time Division Multiplexing

Scientific paper

The Communications Research Laboratory (CRL) has been studying an advanced mobile satellite communications system using millimeter wave and Ka band in the Communications and Broadcasting Engineering Test Satellite (COMETS) project. The project started in 1990 and the satellite will be launched in 1997. Onboard multibeam interconnecting is one of the basic functions to realize onehop connection among mobile and hand held terminals and Very Small Aperture Terminals (VSAT's) in future mobile satellite communications systems. An intermediate frequency (IF) filter bank and regenerative transponder are suitable for this function. The transponder configuration of an advanced mobile communications mission of the COMETS for experiment is shown. High power transmitters of millimeter wave and Ka bands, a 3 by 3 IF filter bank, and Single Channel Per Carrier/Time Division Multiplexing (SCPC/TDM) regenerative modems are the purpose of studying the feasibility of advanced mobile communications systems.

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