1.
GPS
— (NAVSTAR) Global Positioning System is the US owned constellation of satellites that
became fully operational in 1995. GPS is the most widely used GNSS constellation and the term
GPS has become synonymous with GNSS.
2.
Galileo
— EU owned satellite constellation that became fully operational in 2019.
3.
BeiDou
— Chinese Regional Navigation Satellite System, currently in its third generation, became
fully operational in 2020.
4.
GLONASS
— (
GLO
GLO
GLObalnaya NA
NA
NAavigatsionnayaS
S
Sputnikovaya S
S
Sistema
" or “Global Navigation
Satellite System”) is the Russian owned constellation of satellites that has offered global
coverage since 2010.
Satellite based augmentation systems (SBAS)
Satellite based augmentation systems (SBAS) are systems that are used to compliment existing
GNSS by providing differential corrections that improve a GNSS’s attributes such as accuracy,
availability and reliability.
The image below shows approximate coverage of the SBASs available on the MFD:
1.
ALCOMSAT
(Algeria)
2.
AUS-NZ
(Australia / New Zealand)
3.
BDSBAS
(China)
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