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