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- Wide_Area_Augmentation_System abstract "The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration (prime contractor Raytheon Company) to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability. Essentially, WAAS is intended to enable aircraft to rely on GPS for all phases of flight, including precision approaches to any airport within its coverage area.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.The International Civil Aviation Organization (ICAO) calls this type of system a satellite-based augmentation system (SBAS). Europe and Asia are developing their own SBASs, the Indian GPS Aided Geo Augmented Navigation (GAGAN), the European Geostationary Navigation Overlay Service (EGNOS) and the Japanese Multi-functional Satellite Augmentation System (MSAS), respectively. Commercial systems include StarFire and OmniSTAR.".
- Wide_Area_Augmentation_System thumbnail WAAS-Logo.gif?width=300.
- Wide_Area_Augmentation_System wikiPageExternalLink us1996frp.pdf.
- Wide_Area_Augmentation_System wikiPageExternalLink WAAS.html.
- Wide_Area_Augmentation_System wikiPageExternalLink spacecraftDisplay.do?id=1996-070A.
- Wide_Area_Augmentation_System wikiPageExternalLink spacecraftDisplay.do?id=1997-027A.
- Wide_Area_Augmentation_System wikiPageExternalLink spacecraftDisplay.do?id=2005-036A.
- Wide_Area_Augmentation_System wikiPageExternalLink spacecraftDisplay.do?id=2005-041A.
- Wide_Area_Augmentation_System wikiPageExternalLink spacecraftDisplay.do?id=2008-039A.
- Wide_Area_Augmentation_System wikiPageExternalLink 2892bC2a.pdf.
- Wide_Area_Augmentation_System wikiPageExternalLink waas.
- Wide_Area_Augmentation_System wikiPageExternalLink waas.html.
- Wide_Area_Augmentation_System wikiPageExternalLink default.htm.
- Wide_Area_Augmentation_System wikiPageExternalLink sms.
- Wide_Area_Augmentation_System wikiPageExternalLink galaxy_15.asp.
- Wide_Area_Augmentation_System wikiPageExternalLink www.uasc.com.
- Wide_Area_Augmentation_System wikiPageID "862061".
- Wide_Area_Augmentation_System wikiPageRevisionID "605126627".
- Wide_Area_Augmentation_System hasPhotoCollection Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System subject Category:2003_in_aviation.
- Wide_Area_Augmentation_System subject Category:Aids_to_navigation.
- Wide_Area_Augmentation_System subject Category:Global_Positioning_System.
- Wide_Area_Augmentation_System comment "The Wide Area Augmentation System (WAAS) is an air navigation aid developed by the Federal Aviation Administration (prime contractor Raytheon Company) to augment the Global Positioning System (GPS), with the goal of improving its accuracy, integrity, and availability.".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System - WAAS".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "Wide Area Augmentation System".
- Wide_Area_Augmentation_System label "广域增强系统".
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System_-_WAAS.
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System sameAs Wide_Area_Augmentation_System.
- Wide_Area_Augmentation_System sameAs m.03j9ql.
- Wide_Area_Augmentation_System sameAs Q568944.
- Wide_Area_Augmentation_System sameAs Q568944.
- Wide_Area_Augmentation_System wasDerivedFrom Wide_Area_Augmentation_System?oldid=605126627.
- Wide_Area_Augmentation_System depiction WAAS-Logo.gif.
- Wide_Area_Augmentation_System isPrimaryTopicOf Wide_Area_Augmentation_System.
