Physics
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993staa.conf..393i&link_type=abstract
In Science and Technology Agency, Asia-Pacific ISY Conference, Volume 2 p 393-396 (SEE N94-14209 02-43)
Physics
Data Transmission, Pulse Communication, Radio Communication, Satellite Communication, Satellite Transmission, Transmission Lines, Antennas, Broadcasting, Communication Networks, International Cooperation, International Space Year, Japanese Spacecraft, Mobile Communication Systems, Optical Communication, Ultrahigh Frequencies
Scientific paper
This report overviews the current research of space communications technology in Communications Research Laboratory (CRL), Ministry of Posts, and Telecommunications. The Engineering Test Satellite-5 (ETS-5) project has been conducted these five years for mobile communications development. The international cooperations using ETS-5 has been performed. It describes the project of Communications and Broadcasting Engineering Test Satellite (COMETS) to be launched in 1997 for experiments of advanced mobile satellite communication and advanced broadcasting. It also mentions the project of Engineering Test Satellite-6 (ETS-6), to be launched in 1994, in which the CRL's missions of ETS-6 are the inter-satellite communication of S-band, millimeter-wave, and optical. Finally, this report describes the technologies of large antenna assembly experiment, small satellite communications, and cluster satellite briefly.
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