Global Navigation SystemSunday, April 8, 2012 0:13
GLONASS The Global Navigation System Satellite
By uJaNk From Wikipedia[dot]org
Global Navigation System – A satellite navigation or SAT NAV system is a system of satellites that provide autonomous geo-spatial positioning with global coverage.
It allows small electronic receivers to determine their location (longitude, latitude, and altitude) to within a few metres using time signals transmitted along a line-of-sight by radio from satellites.
Global Navigation System, is a radio-based satellite navigation system operated for the Russian government by the Russian Aerospace Defence Forces.
global navigation systems
Global Navigation System both complements and provides an alternative to the United States’ Global Positioning System (GPS) and is currently the only alternative navigational system in operation with global coverage and of the same precision.
As of October 2011, only the United States NAVSTAR Global Positioning System (GPS) and the Russian Global Navigation System are fully globally operational GNSSs. China is in the process of expanding its regional Beidou navigation system into the global Compass navigation system by 2020. The European Union’s Galileo Positioning System is a GNSS in initial deployment phase, scheduled to be fully operational by 2020 at the earliest. Several countries including France, Japan and India are in the process of developing regional navigation systems.
For Global Navigation System GLONASS began in the Soviet Union in 1976. Beginning on 12 October 1982, numerous rocket launches added satellites to the system until the “constellation” was completed in 1995. In the 2000s (decade), under Vladimir Putin’s presidency, the restoration of the system was made a top government priority and funding was substantially increased. GLONASS is currently the most expensive program of the Russian Federal Space Agency, consuming a third of its budget in 2010.
By 2010, GLONASS Global Navigation System had achieved 100% coverage of Russia’s territory and in October 2011, the full orbital constellation of 24 satellites was restored, enabling full global coverage. The Global Navigation System satellites’ designs have undergone several upgrades, with the latest version being GLONASS-K.