📜  卫星系统的历史

📅  最后修改于: 2021-01-07 05:31:50             🧑  作者: Mango

卫星系统的历史

从通信的角度看,卫星系统的发展历史悠久。下面以表格形式显示了一些重要事件:

Year Description
1945 Arthur C. Clarke publishes an essay titled “Extra Terrestrial Relays”
1957 First satellite, SPUTNIK
1960 First Reflecting communication satellite, ECHO
1963 First Geostationary satellite, SYNCOM
1965 First Commercial geostationary satellite, “Early Bird” (INTEKSAT I): 240 duplex telephone channels or 1 TV channel, 1.5 year lifetime.
1976 Three MARISAT satellites for maritime communication.
1982 First mobile satellite telephone system, INMARSAT – A
1988 First satellite system for mobile phones and data communication, INMARSAT -C
1993 First digital satellite telephone system
1998 Global satellite systems for small mobile phones.