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Do aircraft systems really only use GPS and not the full constellation of navigational satellite systems? Besides GPS, the GNSS currently includes other satell
by adolph 3y ago
Do aircraft systems really only use GPS and not the full constellation of navigational satellite systems?
Besides GPS, the GNSS currently includes other satellite navigation systems, such as the Russian GLONASS, and may soon include others such as the European Union’s Galileo and China’s Beidou.
https://www.terrisgps.com/gnss-gps-differences-explained/ https://www.terrisgps.com/gnss-gps-differences-explained/
- ptaipale 3y agoThe linked page already says that it reports on the constellation, not just GPS: "The map uses are color coded overlay to indicate low (green) to high (red) levels of interference with global navigation satellite systems (GNSS). Often just referred to as GPS, there are actually multiple systems beside the US GPS constellation, such as Russia’s GLONASS, Europe’s Galileo, China’s BeiDou, and others."
- blauditore 3y agoJust came here to wonder who came up with the beautiful name of CLOWNASS... er, I mean GLONASS.
- hylaride 3y agoGLObalnaya NAvigatsionnaya Sputnikovaya Sistema in Russian.
- mNovak 3y agoLike the article states, many people use GPS as a shorthand for GNSS generally. In any case, they're all at similar frequencies, so typically they'll all go out together if there's significant interference.
- anticensor 3y agoGLONASS notoriously uses its own band and data format, while following the same basic working principle.
- kube-system 3y agoIt doesn't matter too much, aircraft don't rely solely on any GNSS for navigation, because they're all susceptible to similar availability issues. Magnetic, inertial, barometric, and land-based radio systems are also used. One or more of those other systems are used as a fallback when GNSS fails.
- runjake 3y agoThey use full constellation, in addition to Inertial Nav (INS) -- at least in the US military.
- Reason077 3y agoModern phones use all the available navigation constellations, and have done so for years. But aviation is much more conservative due to its safety-critical nature. Galileo was only just recently (2023) certified for use in aircraft systems by ICAO: https://www.esa.int/Applications/Navigation/Galileo/Galileo_now_fit_for_aviation# https://www.esa.int/Applications/Navigation/Galileo/Galileo_...
- michaelt 3y agoIn the specific case of jamming, it seems unlikely anyone would jam GPS and not also jam the other public GNSS services. The redundancy of multiple independent GNSS systems is a fine thing for dealing with unintentional failures, of course.
- seba_dos1 3y ago> may soon include others such as (...) Just for the record, this must have been written ages ago. Today you would rather look up to NavIC joining them as a global system and QZSS operating independently from GPS soon.