WARTK Systems - Revision history

Filipe.Pelica: Included editor logo.

2014-09-18T17:16:01Z

Included editor logo.

← Older revision		Revision as of 17:16, 18 September 2014
Line 4:		Line 4:
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
			\|Logo=GMV
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}

Filipe.Pelica: fixed broken link.

2014-09-08T17:25:51Z

fixed broken link.

← Older revision		Revision as of 17:25, 8 September 2014
Line 6:		Line 6:
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems<ref>[http://www.gsa.europa.eu/~~index.cfm?objectid=42B6F1B2~~-~~A906~~-~~2D88~~-~~C40D0B75612EDD2D~~ WARTK-EGAL Project]</ref>. Its potential use is in high-precision navigation/surveying applications.		The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems<ref>[http://www.gsa.europa.eu/wartk-based-egnos-and-galileo-technical-feasibility-study WARTK-EGAL Project]</ref>. Its potential use is in high-precision navigation/surveying applications.

	==WARTK Systems==		==WARTK Systems==

Carlos.Lopez at 11:42, 23 February 2012

2012-02-23T11:42:28Z

← Older revision		Revision as of 11:42, 23 February 2012
Line 1:		Line 1:
	{{Article Infobox2		{{Article Infobox2
	\|Category=Fundamentals		\|Category=Fundamentals
	\|~~Authors~~=GMV		\|Editors=GMV
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
	~~\|Logo=GMV~~
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}

Irene.Hidalgo at 09:05, 27 November 2011

2011-11-27T09:05:32Z

← Older revision		Revision as of 09:05, 27 November 2011
Line 7:		Line 7:
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems <ref>[http://www.gsa.europa.eu/index.cfm?objectid=42B6F1B2-A906-2D88-C40D0B75612EDD2D WARTK-EGAL Project]</ref>. Its potential use is in high-precision navigation/surveying applications.		The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems<ref>[http://www.gsa.europa.eu/index.cfm?objectid=42B6F1B2-A906-2D88-C40D0B75612EDD2D WARTK-EGAL Project]</ref>. Its potential use is in high-precision navigation/surveying applications.

	==WARTK Systems==		==WARTK Systems==

Irene.Hidalgo at 09:05, 27 November 2011

2011-11-27T09:05:15Z

← Older revision		Revision as of 09:05, 27 November 2011
Line 7:		Line 7:
	\|Title={{PAGENAME}}		\|Title={{PAGENAME}}
	}}		}}
	The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems. Its potential use is in high-precision navigation/surveying applications.		The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems <ref>[http://www.gsa.europa.eu/index.cfm?objectid=42B6F1B2-A906-2D88-C40D0B75612EDD2D WARTK-EGAL Project]</ref>. Its potential use is in high-precision navigation/surveying applications.

	==WARTK Systems==		==WARTK Systems==

Rui.Pereira at 18:08, 8 November 2011

2011-11-08T18:08:18Z

← Older revision		Revision as of 18:08, 8 November 2011
Line 1:		Line 1:
	{{Article Infobox2		{{Article Infobox2
	\|Category=Fundamentals		\|Category=Fundamentals
	~~\|Title={{PAGENAME}}~~
	\|Authors=GMV		\|Authors=GMV
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
	\|Logo=GMV		\|Logo=GMV
			\|Title={{PAGENAME}}
	}}		}}
			The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems. Its potential use is in high-precision navigation/surveying applications.
	The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[~~Work in Progress:~~WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems. Its potential use is in high-precision navigation/surveying applications.

	==WARTK Systems==		==WARTK Systems==

Rui.Pereira: moved Work in Progress:WARTK Systems to WARTK Systems

2011-06-30T12:36:51Z

moved Work in Progress:WARTK Systems to WARTK Systems

← Older revision	Revision as of 12:36, 30 June 2011
(No difference)

Rui.Pereira at 14:28, 28 June 2011

2011-06-28T14:28:31Z

← Older revision		Revision as of 14:28, 28 June 2011
Line 8:		Line 8:
	}}		}}

	The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems. Its potential use is in high-precision navigation/surveying applications.		The Wide Area RTK (WARTK) concept was introduced in the late 1990s by the [http://www.gage.es/ Research Group of Astronomy and Geomatics (gAGE)] from the Technical University of Catalonia (UPC). The WARTK method increases the RTK/NRTK service area, with permanent stations separated by up to 500–900 kilometers. RTK reference stations should be of the order of ten km distance from rover, because the ionosphere produces ambiguity estimation biases that lead to positioning error above 1 meter. The main [[Work in Progress:WARTK Fundamentals\|WARTK techniques]] are related to an accurate real-time computation of ionospheric corrections, combined with an optimal processing of GNSS observables (carrier phases in particular) in both 2 and 3-frequency GNSS systems. Its potential use is in high-precision navigation/surveying applications.

	==WARTK Systems==		==WARTK Systems==

Jose.Caro at 16:14, 21 June 2011

2011-06-21T16:14:19Z

← Older revision		Revision as of 16:14, 21 June 2011
Line 21:		Line 21:
	*An Internal Communication Subsystem (ICS), connecting the reference station network and the Central Processing Facility.		*An Internal Communication Subsystem (ICS), connecting the reference station network and the Central Processing Facility.
	*A Broadcast Communication Subsystem (BCS), distributing the ionospheric corrections and the reference station data to the users.		*A Broadcast Communication Subsystem (BCS), distributing the ionospheric corrections and the reference station data to the users.
	*User receivers, able to receive the data and to apply the corresponding algorithms.		*User receivers, able to receive the data and to apply the corresponding algorithms, according to the corresponding Interface Control Document.

			The final profile and complexity of the system could be highly affected by key characteristics, such as the requested level of reliability, availability, security or safety.

	==Notes==		==Notes==

Jose.Caro: /* WARTK Systems */

2011-06-21T16:00:05Z

WARTK Systems

← Older revision		Revision as of 16:00, 21 June 2011
Line 17:		Line 17:

	A typical implementation of a WARTK system could include the following components:		A typical implementation of a WARTK system could include the following components:
	*A Reference Stations Network (RSN), composed of a set of multi-frequency GNSS receivers covering the service area separated a few hundreds of kilometers away. For a region like ~~western~~ Europe, a few tens of receivers would be enough. The system could take benefit of already deployed stations, provided they met the needed technical and environmental requirements.		*A Reference Stations Network (RSN), composed of a set of multi-frequency GNSS receivers covering the service area separated a few hundreds of kilometers away. For a region like Western Europe, a few tens of receivers would be enough. The system could take benefit of already deployed stations, provided they met the needed technical and environmental requirements.
	*A Central Processing Facility (CPF), connected to the reference station network with the capability to estimate the ionospheric correction with the required accuracy, and possibly with the function to re-distribute corrections from the reference stations to the users.		*A Central Processing Facility (CPF), connected to the reference station network with the capability to estimate the ionospheric correction with the required accuracy, and possibly with the function to re-distribute corrections from the reference stations to the users.
	*An Internal Communication Subsystem (ICS), connecting the reference station network and the Central Processing Facility.		*An Internal Communication Subsystem (ICS), connecting the reference station network and the Central Processing Facility.