Wide Area Augmentation System

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Link Semantic Value
Term Wide Area Augmentation System
Status


Mandatory for


Contexts


Categories
Synonyms


Related entries

Local Area Augmentation System (LAAS)

Broader term

Satellite Based Augmentation System (SBAS)

Narrower term


Abbreviation

WAAS

Definition

a GPS-based navigation and landing system that provides precision guidance to aircraft at thousands of airports and airstrips where there is currently no precision landing capability.

Definition Source

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 WAAS are known as satellite-based augmentation systems (SBAS). WAAS is designed to improve the accuracy and ensure the integrity of information coming from GPS satellites.