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WAAS Signal Structure: Difference between revisions
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The Wide Area Augmentation System (WAAS) is | The Wide Area Augmentation System (WAAS) is a [[GNSS Augmentation|GPS Augmentation]] system developed by the [http://www.faa.gov Federal Aviation Administration (FAA)], WAAS is an extremely accurate navigation system developed for civil aviation, it provides service for all classes of aircraft in all phases of flight - including en route navigation, airport departures, and airport arrivals. | ||
WAAS uses a network of ground-based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites' signals in the western hemisphere. Measurements from the reference stations are routed to master stations, which queue the received Deviation Correction (DC) and send the correction messages to geostationary WAAS satellites in a timely manner (every 5 seconds or better). Those satellites broadcast the correction messages back to Earth, where WAAS-enabled GPS receivers use the corrections while computing their positions to improve accuracy.<ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System WAAS in Wikipedia]</ref> | WAAS uses a network of ground-based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites' signals in the western hemisphere. Measurements from the reference stations are routed to master stations, which queue the received Deviation Correction (DC) and send the correction messages to geostationary WAAS satellites in a timely manner (every 5 seconds or better). Those satellites broadcast the correction messages back to Earth, where WAAS-enabled GPS receivers use the corrections while computing their positions to improve accuracy.<ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System WAAS in Wikipedia]</ref> | ||
Revision as of 10:15, 21 June 2011
| WAAS | |
|---|---|
| Title | WAAS Signal Structure |
| Author(s) | GMV. |
| Level | Basic |
| Year of Publication | 2011 |
The Wide Area Augmentation System (WAAS) is a GPS Augmentation system developed by the Federal Aviation Administration (FAA), WAAS is an extremely accurate navigation system developed for civil aviation, it provides service for all classes of aircraft in all phases of flight - including en route navigation, airport departures, and airport arrivals.
WAAS uses a network of ground-based reference stations, in North America and Hawaii, to measure small variations in the GPS satellites' signals in the western hemisphere. Measurements from the reference stations are routed to master stations, which queue the received Deviation Correction (DC) and send the correction messages to geostationary WAAS satellites in a timely manner (every 5 seconds or better). Those satellites broadcast the correction messages back to Earth, where WAAS-enabled GPS receivers use the corrections while computing their positions to improve accuracy.[1]