GNSS (Global Navigation Satellite System) is a satellite system that is used to pinpoint the geographic location of a user's receiver anywhere in the world.
The main GNSS systems are currently in operation are the US' Global Positioning System (GPS), the Russia's Global Orbiting Navigation Satellite System (GLONASS) and Europe's Galileo, which is still adding to it's satellite constellation. China also have their own GNSS, BeiDou, which they are also still adding to but will contain a network of 35 satellites once complete.
Each of these GNSS systems are made from a constellation of satellites working in conjunction with a network of ground stations.
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Russia's GLONASS (Global Navigation Satellite System) is an array consisting of 24 satellites, providing a robust alternative to GPS. Many of our modules operate over multiple constellations, allowing you to benefit from greater coverage and faster time to first fix.
Still under construction by the European Space Agency, the Galileo Satellite network currently consists of 14 operational satellites, being expanded to 30 over time. Galileo is intended to provide horizontal and vertical position measurements within 1-metre precision, and better positioning services at high latitudes than other positioning systems.
China's BeiDou navigation satellite network is made of two constellations and will total 35 active satellites when complete (14 satellites currently active). Currently, the constellation has excellent coverage of Asian regions, with total global coverage being completed by 2020, but can be used in conjunction with other satellite constellations with many of our modules.