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Local Area Augmentation System
Abbreviation LAAS  +
Definition an augmentation to GPS that focuses its service on the airport area (approximately a 20-30 mile radius).  +
Defsource FAA (2009) homepage, Navigation Services, URL: http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/hill/index.cfm#waas  +
Note Systems such as LAAS are known as ground-b
Systems such as LAAS are known as ground-based augmentation systems (GBAS). LAAS broadcasts its correction message via a very high frequency (VHF) radio data link from a ground-based transmitter. LAAS will yield the extremely high accuracy, availability, and integrity necessary for Category I, II, and III precision approaches, and will provide the ability for more flexible, curved approach paths. LAAS demonstrated accuracy is less than 1 meter in both the horizontal and vertical axis.
in both the horizontal and vertical axis.  +
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5 July 2016 12:33:14  +
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