WAAS Future and Evolutions - Revision history

Gema.Cueto at 09:11, 16 February 2021

2021-02-16T09:11:42Z

← Older revision		Revision as of 09:11, 16 February 2021
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	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
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	The Wide Area Augmentation System ([[WAAS General Introduction\|WAAS]]) is the United States [[SBAS General Introduction\|Satellite Based Augmentation System]]. The programme, started in 1992, is being carried out by the [http://www.faa.gov/ Federal Aviation Agency (FAA)]<ref name="FAA_NAV_HISTORY">[http://www.faa.gov/ Navigation Services - History - Satellite Navigation,] [http://www.faa.gov/ FAA.]</ref> and is specially developed for the civil aviation community.<ref name="FAA_WAAS">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/ Navigation Services - Wide Area Augmentation System (WAAS)], [http://www.faa.gov/ FAA.]</ref> The system, which was declared operational on July 10, 2003,<ref name="STANFORD_WAAS">[https://gps.stanford.edu/research/currentcontinuing-research/waas-sbas Wide Area Differential GPS (WADGPS), Stanford University]</ref> currently supports thousands of aircraft instrument approaches in more than one thousand airports in USA and Canada.<ref name="APPROACHES">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/index.cfm GNSS - GPS/WAAS Approaches,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> WAAS service area includes CONUS, Alaska, Canada and Mexico.<ref name="WAASExpanded">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/news/ WAAS Service Expanded into Canada and Mexico, September 28, 2007,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> The WAAS programme is continuously in evolution; ~~two~~ development phases have been already covered~~, a third is in progress~~, and there are plans to improve the capability of the system in parallel with the evolution of the SBAS standards towards a dual-frequency augmentation service.<ref name="EXTENSION">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/satnav/media/SatNav_March08.pdf SatNav News, Vol. 33, March 2008,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref>		The Wide Area Augmentation System ([[WAAS General Introduction\|WAAS]]) is the United States [[SBAS General Introduction\|Satellite Based Augmentation System]]. The programme, started in 1992, is being carried out by the [http://www.faa.gov/ Federal Aviation Agency (FAA)]<ref name="FAA_NAV_HISTORY">[http://www.faa.gov/ Navigation Services - History - Satellite Navigation,] [http://www.faa.gov/ FAA.]</ref> and is specially developed for the civil aviation community.<ref name="FAA_WAAS">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/ Navigation Services - Wide Area Augmentation System (WAAS)], [http://www.faa.gov/ FAA.]</ref> The system, which was declared operational on July 10, 2003,<ref name="STANFORD_WAAS">[https://gps.stanford.edu/research/currentcontinuing-research/waas-sbas Wide Area Differential GPS (WADGPS), Stanford University]</ref> currently supports thousands of aircraft instrument approaches in more than one thousand airports in USA and Canada.<ref name="APPROACHES">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/index.cfm GNSS - GPS/WAAS Approaches,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> WAAS service area includes CONUS, Alaska, Canada and Mexico.<ref name="WAASExpanded">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/news/ WAAS Service Expanded into Canada and Mexico, September 28, 2007,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> The WAAS programme is continuously in evolution; three development phases have been already covered, and there are on-going plans to improve the capability of the system in parallel with the evolution of the SBAS standards towards a dual-frequency augmentation service.<ref name="EXTENSION">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/satnav/media/SatNav_March08.pdf SatNav News, Vol. 33, March 2008,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref>

	==WAAS Future and Evolutions==		==WAAS Future and Evolutions==

Gema.Cueto: /* WAAS Schedule */

2021-01-28T09:59:14Z

WAAS Schedule

← Older revision		Revision as of 09:59, 28 January 2021
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	In the following figure is shown a time diagram with the FAA plans for WAAS GEOs and the Dual frequency operations for the period 2015-2022.		In the following figure is shown a time diagram with the FAA plans for WAAS GEOs and the Dual frequency operations for the period 2015-2022.

			[[File:WAAS_schedule.png\|700px\| WAAS Schedule<ref>[https://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/briefings/media/WAAS_Program_Status_Update_Feb_2020.pdf WAAS Overview February 2020, Federal Aviation Administration]</ref> \|none\|thumb]]

	In addition, the transition between phase A and B of the Phase IV takes place during 2020 and 2021. This transition entails the following points:		In addition, the transition between phase A and B of the Phase IV takes place during 2020 and 2021. This transition entails the following points:

Gema.Cueto: /* WAAS Future and Evolutions */

2021-01-28T09:52:03Z

WAAS Future and Evolutions

← Older revision		Revision as of 09:52, 28 January 2021
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	Dual frequency WAAS offers great potential to eliminate the current system’s vulnerability to ionospheric storms. The removal of ionospheric uncertainty, coupled with other improvements to integrity monitoring, may allow guidance under even more demanding environments than currently allowed. Further, elimination of dependency on ionospheric corrections allows for better coverage at the edges of the current system. However, the change to ionospheric-free combination in the aircraft introduces some changes that must be overcome. Accuracy will be degraded, but still within specifications for all known operations. However, certain threats, most notably code-carrier divergence and signal deformations, runs the risk of now dominating and determining availability.<ref>[https://www.researchgate.net/publication/261537494_Evolving_WAAS_to_serve_L1L5_users Walter, Todd & Blanch, Juan & Phelts, R. & Enge, Per. (2012). Evolving WAAS to serve L1/L5 users. Navigation. 59. 10.1002/navi.21.]</ref>		Dual frequency WAAS offers great potential to eliminate the current system’s vulnerability to ionospheric storms. The removal of ionospheric uncertainty, coupled with other improvements to integrity monitoring, may allow guidance under even more demanding environments than currently allowed. Further, elimination of dependency on ionospheric corrections allows for better coverage at the edges of the current system. However, the change to ionospheric-free combination in the aircraft introduces some changes that must be overcome. Accuracy will be degraded, but still within specifications for all known operations. However, certain threats, most notably code-carrier divergence and signal deformations, runs the risk of now dominating and determining availability.<ref>[https://www.researchgate.net/publication/261537494_Evolving_WAAS_to_serve_L1L5_users Walter, Todd & Blanch, Juan & Phelts, R. & Enge, Per. (2012). Evolving WAAS to serve L1/L5 users. Navigation. 59. 10.1002/navi.21.]</ref>

			==WAAS Schedule==

			In the following figure is shown a time diagram with the FAA plans for WAAS GEOs and the Dual frequency operations for the period 2015-2022.

			In addition, the transition between phase A and B of the Phase IV takes place during 2020 and 2021. This transition entails the following points:
			* Two year continuation of the WAAS program prior to Phase 4B FID
			* Two releases to focused on continued sustainment of the operational WAAS (Releases 6 and 7)
			** Release 6 will improve WAAS performance enhancements by correcting anomalies to the O&M, Test Support Software (TSS) and network critical message logging capabilities
			** Release 7 will integrate GEO 7 into WAAS and upgrade with new Signal Generator including the retrofitting of new
			** SIGGENs at the GEO 5 and GEO 6 legacy GUS sites. GEO 7 projected to be operational by September 2021
			* Continued definition of DFO Phase 4B requirements and alignment with GPS modernization schedule
			* Demonstration of alternatives to transition the communications network from Time Division Multiplexing (TDM) to Internet Protocol (IP)
			* Additional work will include:
			** Completion of L5 Dual Frequency (DF) signal analysis and support Minimal Operational Performance Standards (MOPS) development to facilitate requirements definition
			** Resolution of WAAS Operations & Maintenance software reliability and maintainability issues
			** Integration of GEO 7
			** Replacement of obsolete Signal Generator (SIGGEN)
			** Generation of WAAS Phase 4B FID Artifacts

	==Notes==		==Notes==

Gema.Cueto: /* WAAS Future and Evolutions */

2021-01-28T09:23:29Z

WAAS Future and Evolutions

← Older revision		Revision as of 09:23, 28 January 2021
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	*Expanded coverage to Mexico and Canada		*Expanded coverage to Mexico and Canada

	Phase III, ~~currently under development, implies~~ the following changes:<ref name="FAA_WAAS_LAAS"/><ref name="DoS"/>		Phase III, implied the following changes:<ref name="FAA_WAAS_LAAS"/><ref name="DoS"/>

	*Technology refresh covering development, modifications, and enhancements in the system.		*Technology refresh covering development, modifications, and enhancements in the system.
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	*Improve service during severe solar activity.		*Improve service during severe solar activity.

			In addition, space segment updates are foreseen in this timeframe.
	In April 2015, the Federal Aviation Administration (FAA) ~~has~~ awarded a $103-million contract to the Raytheon Company to maintain the GPS Wide Area Augmentation System (WAAS).		In April 2015, the Federal Aviation Administration (FAA) awarded a $103-million contract to the Raytheon Company to maintain the GPS Wide Area Augmentation System (WAAS).
	The company ~~will~~ develop a payload to be incorporated into a new geostationary satellite and two associated ground uplink stations to support the WAAS system within U.S. airspace.		The company would develop a payload to be incorporated into a new geostationary satellite and two associated ground uplink stations to support the WAAS system within U.S. airspace.
	The WAAS GEO 6 payload ~~will be~~ hosted aboard a commercial host satellite in a geostationary earth orbit (GEO). The GEO 6 system, along with GEO 5 (under a contract awarded to Raytheon in 2012), will replace two WAAS GEO payloads that are approaching the end of their service leases.		The WAAS GEO 6 payload is hosted aboard a commercial host satellite in a geostationary earth orbit (GEO). The GEO 6 system, along with GEO 5 (under a contract awarded to Raytheon in 2012), will replace two WAAS GEO payloads that are approaching the end of their service leases.
	Projected launch of the WAAS GEO 6 payload ~~will occur~~ in the second quarter of ~~2017~~.		Projected launch of the WAAS GEO 6 payload occurred in the second quarter of 2019.
			Three more GEO satellites (GEO 7/8/9) are going to be developped to replace legacy GEO's upon lease expiration. The first of them, GEO 7, is expected to be operational in 2022.<ref>[https://www.gps.gov/multimedia/presentations/2020/CSNC/auerbach.pdf China Satellite Naviation Conference, November 2020]</ref>
	The agency is in the process of converting WAAS from a single-frequency (L1) system to dual-frequency (L1/L5) operation.		The agency is in the process of converting WAAS from a single-frequency (L1) system to dual-frequency (L1/L5) operation.
	The FAA plans to sustain dual-frequency WAAS GEOs until at least 2044.<ref name="WAAS_GEO6_AWARD">[http://www.insidegnss.com FAA Awards New GPS WAAS Contract to Raytheon]</ref>		The FAA plans to sustain dual-frequency WAAS GEOs until at least 2044.<ref name="WAAS_GEO6_AWARD">[http://www.insidegnss.com FAA Awards New GPS WAAS Contract to Raytheon]</ref>

			Dual frequency WAAS offers great potential to eliminate the current system’s vulnerability to ionospheric storms. The removal of ionospheric uncertainty, coupled with other improvements to integrity monitoring, may allow guidance under even more demanding environments than currently allowed. Further, elimination of dependency on ionospheric corrections allows for better coverage at the edges of the current system. However, the change to ionospheric-free combination in the aircraft introduces some changes that must be overcome. Accuracy will be degraded, but still within specifications for all known operations. However, certain threats, most notably code-carrier divergence and signal deformations, runs the risk of now dominating and determining availability.<ref>[https://www.researchgate.net/publication/261537494_Evolving_WAAS_to_serve_L1L5_users Walter, Todd & Blanch, Juan & Phelts, R. & Enge, Per. (2012). Evolving WAAS to serve L1/L5 users. Navigation. 59. 10.1002/navi.21.]</ref>

	==Notes==		==Notes==

Gema.Cueto: /* WAAS Future and Evolutions */

2021-01-28T09:09:53Z

WAAS Future and Evolutions

← Older revision		Revision as of 09:09, 28 January 2021
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	#Phase I –Initial Operating Capability (IOC). Completed in 2003.		#Phase I –Initial Operating Capability (IOC). Completed in 2003.
	#Phase II -Full LPV Performance. Completed in 2008.		#Phase II -Full LPV Performance. Completed in 2008.
	#Phase III -Full LPV-200 Performance. ~~Planned for 2009-~~2013.		#Phase III -Full LPV-200 Performance. Completed in 2013.
	#Phase IV -Dual Frequency Operations. Planned for 2014-2028.		#Phase IV -Dual Frequency Operations. Planned for 2014-2028.

Gema.Cueto at 09:09, 28 January 2021

2021-01-28T09:09:25Z

← Older revision		Revision as of 09:09, 28 January 2021
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	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	The Wide Area Augmentation System ([[WAAS General Introduction\|WAAS]]) is the United States [[SBAS General Introduction\|Satellite Based Augmentation System]]. The programme, started in 1992, is being carried out by the [http://www.faa.gov/ Federal Aviation Agency (FAA)]<ref name="FAA_NAV_HISTORY">[http://www.faa.gov/ Navigation Services - History - Satellite Navigation,] [http://www.faa.gov/ FAA.]</ref> and is specially developed for the civil aviation community.<ref name="FAA_WAAS">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/ Navigation Services - Wide Area Augmentation System (WAAS)], [http://www.faa.gov/ FAA.]</ref> The system, which was declared operational ~~in late~~ 2003,<ref name="STANFORD_WAAS">[~~http~~://~~waas~~.stanford.edu/research/waas~~.htm~~ Wide Area Differential GPS (WADGPS), Stanford University]</ref> currently supports thousands of aircraft instrument approaches in more than one thousand airports in USA and Canada.<ref name="APPROACHES">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/index.cfm GNSS - GPS/WAAS Approaches,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> WAAS service area includes CONUS, Alaska, Canada and Mexico.<ref name="WAASExpanded">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/news/ WAAS Service Expanded into Canada and Mexico, September 28, 2007,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> The WAAS programme is continuously in evolution; two development phases have been already covered, a third is in progress, and there are plans to improve the capability of the system in parallel with the evolution of the SBAS standards towards a dual-frequency augmentation service.<ref name="EXTENSION">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/satnav/media/SatNav_March08.pdf SatNav News, Vol. 33, March 2008,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref>		The Wide Area Augmentation System ([[WAAS General Introduction\|WAAS]]) is the United States [[SBAS General Introduction\|Satellite Based Augmentation System]]. The programme, started in 1992, is being carried out by the [http://www.faa.gov/ Federal Aviation Agency (FAA)]<ref name="FAA_NAV_HISTORY">[http://www.faa.gov/ Navigation Services - History - Satellite Navigation,] [http://www.faa.gov/ FAA.]</ref> and is specially developed for the civil aviation community.<ref name="FAA_WAAS">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/ Navigation Services - Wide Area Augmentation System (WAAS)], [http://www.faa.gov/ FAA.]</ref> The system, which was declared operational on July 10, 2003,<ref name="STANFORD_WAAS">[https://gps.stanford.edu/research/currentcontinuing-research/waas-sbas Wide Area Differential GPS (WADGPS), Stanford University]</ref> currently supports thousands of aircraft instrument approaches in more than one thousand airports in USA and Canada.<ref name="APPROACHES">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/index.cfm GNSS - GPS/WAAS Approaches,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> WAAS service area includes CONUS, Alaska, Canada and Mexico.<ref name="WAASExpanded">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/news/ WAAS Service Expanded into Canada and Mexico, September 28, 2007,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> The WAAS programme is continuously in evolution; two development phases have been already covered, a third is in progress, and there are plans to improve the capability of the system in parallel with the evolution of the SBAS standards towards a dual-frequency augmentation service.<ref name="EXTENSION">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/satnav/media/SatNav_March08.pdf SatNav News, Vol. 33, March 2008,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref>

	==WAAS Future and Evolutions==		==WAAS Future and Evolutions==

Claudia.Prajanu at 11:34, 28 September 2018

2018-09-28T11:34:25Z

← Older revision		Revision as of 11:34, 28 September 2018
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	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	The Wide Area Augmentation System ([[WAAS General Introduction\|WAAS]]) is the United States [[SBAS General Introduction\|Satellite Based Augmentation System]]. The programme, started in 1992, is being carried out by the [http://www.faa.gov/ Federal Aviation Agency (FAA)]<ref name="FAA_NAV_HISTORY">[http://www.faa.gov/~~about/office_org/headquarters_offices/ato/service_units/techops/navservices/history/satnav/index.cfm~~ Navigation Services - History - Satellite Navigation,] [http://www.faa.gov/ FAA.]</ref> and is specially developed for the civil aviation community.<ref name="FAA_WAAS">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/ Navigation Services - Wide Area Augmentation System (WAAS)], [http://www.faa.gov/ FAA.]</ref> The system, which was declared operational in late 2003,<ref name="STANFORD_WAAS">[http://waas.stanford.edu/research/waas.htm Wide Area Differential GPS (WADGPS), Stanford University]</ref> currently supports thousands of aircraft instrument approaches in more than one thousand airports in USA and Canada.<ref name="APPROACHES">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/index.cfm GNSS - GPS/WAAS Approaches,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> WAAS service area includes CONUS, Alaska, Canada and Mexico.<ref name="WAASExpanded">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/news/ WAAS Service Expanded into Canada and Mexico, September 28, 2007,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> The WAAS programme is continuously in evolution; two development phases have been already covered, a third is in progress, and there are plans to improve the capability of the system in parallel with the evolution of the SBAS standards towards a dual-frequency augmentation service.<ref name="EXTENSION">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/satnav/media/SatNav_March08.pdf SatNav News, Vol. 33, March 2008,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref>		The Wide Area Augmentation System ([[WAAS General Introduction\|WAAS]]) is the United States [[SBAS General Introduction\|Satellite Based Augmentation System]]. The programme, started in 1992, is being carried out by the [http://www.faa.gov/ Federal Aviation Agency (FAA)]<ref name="FAA_NAV_HISTORY">[http://www.faa.gov/ Navigation Services - History - Satellite Navigation,] [http://www.faa.gov/ FAA.]</ref> and is specially developed for the civil aviation community.<ref name="FAA_WAAS">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/ Navigation Services - Wide Area Augmentation System (WAAS)], [http://www.faa.gov/ FAA.]</ref> The system, which was declared operational in late 2003,<ref name="STANFORD_WAAS">[http://waas.stanford.edu/research/waas.htm Wide Area Differential GPS (WADGPS), Stanford University]</ref> currently supports thousands of aircraft instrument approaches in more than one thousand airports in USA and Canada.<ref name="APPROACHES">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/approaches/index.cfm GNSS - GPS/WAAS Approaches,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> WAAS service area includes CONUS, Alaska, Canada and Mexico.<ref name="WAASExpanded">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/waas/news/ WAAS Service Expanded into Canada and Mexico, September 28, 2007,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref> The WAAS programme is continuously in evolution; two development phases have been already covered, a third is in progress, and there are plans to improve the capability of the system in parallel with the evolution of the SBAS standards towards a dual-frequency augmentation service.<ref name="EXTENSION">[http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/satnav/media/SatNav_March08.pdf SatNav News, Vol. 33, March 2008,] [http://www.faa.gov/ Federal Aviation Agency (FAA).]</ref>

	==WAAS Future and Evolutions==		==WAAS Future and Evolutions==
	The WAAS Development Phases are:<ref name="FAA_WAAS_LAAS">WAAS and LAAS Status,FAA presentation at 47th meeting of the Civil Global Positioning System Service Interface Committee, September 25, 2008</ref><ref name="WAAS STATUS">[http://www.afceaboston.com~~/documents/events/cnsatm2011/Briefs/03-Wednesday/Wednesday-AM/04-Eldredge-FAA%20SAT%20NAV.pdf~~ WAAS Program Update, 2011, FAA]</ref><ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System Wide Area Augmentation System in Wikipedia]</ref><ref name="DoS">[http://www.gps.gov/multimedia/presentations/2011/06/moscow/clore.pdf U.S. GPS Policy and Constellation Status, 5th International Satellite Navigation Forum Moscow, Russia June 1-2, 2011, by U.S. Department of State]</ref>		The WAAS Development Phases are:<ref name="FAA_WAAS_LAAS">WAAS and LAAS Status,FAA presentation at 47th meeting of the Civil Global Positioning System Service Interface Committee, September 25, 2008</ref><ref name="WAAS STATUS">[http://www.afceaboston.com WAAS Program Update, 2011, FAA]</ref><ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System Wide Area Augmentation System in Wikipedia]</ref><ref name="DoS">[http://www.gps.gov/multimedia/presentations/2011/06/moscow/clore.pdf U.S. GPS Policy and Constellation Status, 5th International Satellite Navigation Forum Moscow, Russia June 1-2, 2011, by U.S. Department of State]</ref>

	#Phase I –Initial Operating Capability (IOC). Completed in 2003.		#Phase I –Initial Operating Capability (IOC). Completed in 2003.
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	Projected launch of the WAAS GEO 6 payload will occur in the second quarter of 2017.		Projected launch of the WAAS GEO 6 payload will occur in the second quarter of 2017.
	The agency is in the process of converting WAAS from a single-frequency (L1) system to dual-frequency (L1/L5) operation.		The agency is in the process of converting WAAS from a single-frequency (L1) system to dual-frequency (L1/L5) operation.
	The FAA plans to sustain dual-frequency WAAS GEOs until at least 2044.<ref name="WAAS_GEO6_AWARD">[http://www.insidegnss.com~~/node/4483~~ FAA Awards New GPS WAAS Contract to Raytheon]</ref>		The FAA plans to sustain dual-frequency WAAS GEOs until at least 2044.<ref name="WAAS_GEO6_AWARD">[http://www.insidegnss.com FAA Awards New GPS WAAS Contract to Raytheon]</ref>

	==Notes==		==Notes==

Paulo.Pombal: /* WAAS Future and Evolutions */

2015-06-01T13:53:21Z

WAAS Future and Evolutions

← Older revision		Revision as of 13:53, 1 June 2015
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	*High availability performance, with steady operations and smooth maintenance.		*High availability performance, with steady operations and smooth maintenance.
	*Improve service during severe solar activity.		*Improve service during severe solar activity.


			In April 2015, the Federal Aviation Administration (FAA) has awarded a $103-million contract to the Raytheon Company to maintain the GPS Wide Area Augmentation System (WAAS).
			The company will develop a payload to be incorporated into a new geostationary satellite and two associated ground uplink stations to support the WAAS system within U.S. airspace.
			The WAAS GEO 6 payload will be hosted aboard a commercial host satellite in a geostationary earth orbit (GEO). The GEO 6 system, along with GEO 5 (under a contract awarded to Raytheon in 2012), will replace two WAAS GEO payloads that are approaching the end of their service leases.
			Projected launch of the WAAS GEO 6 payload will occur in the second quarter of 2017.
			The agency is in the process of converting WAAS from a single-frequency (L1) system to dual-frequency (L1/L5) operation.
			The FAA plans to sustain dual-frequency WAAS GEOs until at least 2044.<ref name="WAAS_GEO6_AWARD">[http://www.insidegnss.com/node/4483 FAA Awards New GPS WAAS Contract to Raytheon]</ref>

	==Notes==		==Notes==

Filipe.Pelica: Included editor logo.

2014-09-18T17:13:51Z

Included editor logo.

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Filipe.Pelica: removed broken link.

2014-09-08T16:13:54Z

removed broken link.

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	==WAAS Future and Evolutions==		==WAAS Future and Evolutions==
	The WAAS Development Phases are:<ref name="FAA_WAAS_LAAS">~~[http://www.navcen.uscg.gov/pdf/cgsicMeetings/47/%5B12%5D%20WAAS-LAAS-CGSIC-07.pdf~~ WAAS and LAAS Status],FAA presentation at 47th meeting of the Civil Global Positioning System Service Interface Committee, September 25, 2008</ref><ref name="WAAS STATUS">[http://www.afceaboston.com/documents/events/cnsatm2011/Briefs/03-Wednesday/Wednesday-AM/04-Eldredge-FAA%20SAT%20NAV.pdf WAAS Program Update, 2011, FAA]</ref><ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System Wide Area Augmentation System in Wikipedia]</ref><ref name="DoS">[http://www.gps.gov/multimedia/presentations/2011/06/moscow/clore.pdf U.S. GPS Policy and Constellation Status, 5th International Satellite Navigation Forum Moscow, Russia June 1-2, 2011, by U.S. Department of State]</ref>		The WAAS Development Phases are:<ref name="FAA_WAAS_LAAS">WAAS and LAAS Status,FAA presentation at 47th meeting of the Civil Global Positioning System Service Interface Committee, September 25, 2008</ref><ref name="WAAS STATUS">[http://www.afceaboston.com/documents/events/cnsatm2011/Briefs/03-Wednesday/Wednesday-AM/04-Eldredge-FAA%20SAT%20NAV.pdf WAAS Program Update, 2011, FAA]</ref><ref>[http://en.wikipedia.org/wiki/Wide_Area_Augmentation_System Wide Area Augmentation System in Wikipedia]</ref><ref name="DoS">[http://www.gps.gov/multimedia/presentations/2011/06/moscow/clore.pdf U.S. GPS Policy and Constellation Status, 5th International Satellite Navigation Forum Moscow, Russia June 1-2, 2011, by U.S. Department of State]</ref>

	#Phase I –Initial Operating Capability (IOC). Completed in 2003.		#Phase I –Initial Operating Capability (IOC). Completed in 2003.