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Global Navigation Satellite System (Gnss)

By Wiley Stickney

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Global Navigation Satellite System (Gnss)

Global Navigation Satellite System, or GNSS, refers to a worldwide system used for determining position, velocity, and time. It includes satellite constellations, receivers, and monitoring systems to ensure accurate navigation. Currently, there are four major GNSS implementations: the United States operates the Global Positioning System (GPS), while the European Union has developed GALILEO. Russia uses the Global Orbiting Navigation System (GLONASS), and China has the BeiDou Navigation Satellite System (BDS). As of now, GPS and GLONASS are fully operational. The Galileo system is expected to be active by 2015, and BeiDou is partially operational, with full functionality anticipated by 2020.

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