Gps glonass e galileo biography
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Galileo General Introduction
| GALILEO | |
|---|---|
| Title | Galileo General Introduction |
| Edited by | GMV |
| Level | Basic |
| Year of Publication | |
Galileo is Europe’s own global navigation satellite system, providing a highly accurate, guaranteed global positioning service under civilian control. It is inter-operable with GPS and GLONASS. Galileo receivers compute their position in the Galileo Reference System using satellite technology and based on trilateration principles.
The Galileo system started its initial services on December 15th, [1] The services will evolve with the infrastructure deployment until the Full Operational Capability (FOC) is achieved.
Introduction
The Galileo program is Europe's initiative for a state-of-the-art global satellite navigation system, providing a highly accurate, guaranteed global positioning service under civilian control.[2][3] While providing auto
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Satellite navigation
Use of satellite signals for geo-spatial positioning
For maneuvering satellites to maintain orbit and station, see Orbital station-keeping.
A satellite navigation or satnav system is a system that uses satellites to provide autonomous geopositioning. A satellite navigation system with global coverage is termed global navigation satellite system (GNSS). As of [update], four global systems are operational: the United States's Global Positioning System (GPS), Russia's Global Navigation Satellite System (GLONASS), China's BeiDou Navigation Satellite System (BDS),[1] and the European Union'sGalileo.[2]
Satellite-based augmentation systems (SBAS), designed to enhance the accuracy of GNSS,[3] include Japan's Quasi-Zenith Satellite System (QZSS),[3] India's GAGAN and the European EGNOS, all of them based on GPS. Previous iterations of the BeiDou navigation system and the present Indian Regional Navigati
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Satellite Navigation System GNSS (Global Navigation Satellite System).
History
More than 43 years ago, on February 22, , the first satellite of the Navstar GPS system was launched into orbit bygd the United States Space Forces, ushering in a new era of position determination. Originally designed purely for military purposes, civilian use was permitted bygd order of then U.S. President Ronald Reagan after a Korean Air plane accident in the s. Since the GPS went into full operation in , the previous position determination systems such as SatNav (Here a position was determined by the approx. minute flyover of transit satellites several times a day) or LoranC (radio direction finding from various transmitting stations) have been completely overhauled and have almost completely disappeared.
Mode of operation
The network, consisting of currently 31 active satellites (75 satellites have been placed so far), operates on MHz (in the civilian range) and provides an accuracy of a few meter