BeiDou
BeiDou is a Chinese satellite navigation system that provides global coverage. It consists of two separate satellite constellations, namely BeiDou-1 and BeiDou-2. The first generation BeiDou-1 system was a regional system that covered China and neighboring countries. The second generation BeiDou-2 system is a global navigation system that provides positioning, navigation, and timing services to users worldwide. The system uses a combination of geostationary and inclined geosynchronous satellite orbits, as well as medium Earth orbit satellites. The system also includes ground-based stations and user terminals. BeiDou is designed to provide an alternative to the US GPS system and the Russian GLONASS system, and is expected to have military and civilian applications.
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