GIS and Land Surveyor
However, the Russian GLONASS is the only other system that offers global coverage, though slightly less accurately than GPS. The Galileo system is expected to reach global operational capacity by 2019, and BeiDou by 2020.
GPS is just one of several space-based radio navigation systems. Russian has its GLONASS system, the European Union has its Galileo system, and China has its BeiDo…