At present, in the world, only China's Beidou, the United States' GPS, Russia's GLONASS and the European Union's Galileo positioning system are enough to be called the global system  It can be said that a perfect satellite navigation system is a display of a country's comprehensive strength  Beidou system implements the deployment of mixed heterogeneous constellations for the first time in the world  The GPS of the United States and the Galileo positioning system of Europe are composed of medium-high orbit satellites, while Beidou is composed of geostationary orbit satellites, tilted geosynchronous orbit satellites and medium-high orbit satellites
The Beidou system can not only achieve global coverage, but also provide higher precision and better performance services for the mainland because some of the satellites are located over Chinese territory
Where is the good of Beidou system.