RTK Standards - Revision history

Claudia.Prajanu at 15:21, 26 July 2018

2018-07-26T15:21:26Z

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	With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>		With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>

	The standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/~~overview.php#Standards~~ Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[~~http~~://www.septentrio.com/~~support/about-gnss/dgps-vs-rtk~~ DGPS vs RTK, Septentrio]</ref>		The standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/ Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[https://www.septentrio.com/ DGPS vs RTK, Septentrio]</ref>

	==RTCM Standards==		==RTCM Standards==

	The internationally accepted data transmission standards for DGNSS are defined by the [http://www.rtcm.org Radio Technical Commission for Maritime Services] organization (RTCM), particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> The protocol is a binary one designed to optimize the communication throughput.<ref>[~~http~~://~~www.hemispheregps~~.com/~~gpsreference~~/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>		The internationally accepted data transmission standards for DGNSS are defined by the [http://www.rtcm.org Radio Technical Commission for Maritime Services] organization (RTCM), particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> The protocol is a binary one designed to optimize the communication throughput.<ref>[https://hemispheregnss.com/gnssreference/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>

	The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.		The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.

Filipe.Pelica: Included editor logo.

2014-09-18T17:10:43Z

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	With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>		With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>

Filipe.Pelica: fixed broken link.

2014-09-10T11:05:38Z

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	==RTCM Standards==		==RTCM Standards==

	The internationally accepted data transmission standards for DGNSS are defined by the [http://www.rtcm.org Radio Technical Commission for Maritime Services] organization (RTCM), particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> The protocol is a binary one designed to optimize the communication throughput.<ref>[http://www.hemispheregps.com/~~gpstechinfo~~/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>		The internationally accepted data transmission standards for DGNSS are defined by the [http://www.rtcm.org Radio Technical Commission for Maritime Services] organization (RTCM), particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> The protocol is a binary one designed to optimize the communication throughput.<ref>[http://www.hemispheregps.com/gpsreference/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>

	The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.		The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.

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	The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The releases of RTCM versions 3.0 and 3.1 focus on the optimization of the use of bandwidth,<ref>[http://tekmon.gr/~~2011/03/~~rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> on higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and on the management of RTK networks. More information about RTCM messages can be found in article [[DGNSS Standards\|DGNSS Standards]].		The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The releases of RTCM versions 3.0 and 3.1 focus on the optimization of the use of bandwidth,<ref>[http://www.tekmon.gr/2-5-1-rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> on higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and on the management of RTK networks. More information about RTCM messages can be found in article [[DGNSS Standards\|DGNSS Standards]].

	==Other Standards==		==Other Standards==

Carlos.Lopez at 11:40, 23 February 2012

2012-02-23T11:40:41Z

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	{{Article Infobox2		{{Article Infobox2
	\|Category=Fundamentals		\|Category=Fundamentals
	\|~~Authors~~=GMV		\|Editors=GMV
	\|Level=Basic		\|Level=Basic
	\|YearOfPublication=2011		\|YearOfPublication=2011
	~~\|Logo=GMV~~
	}}		}}
	With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>		With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>

Jose.Caro at 17:32, 5 December 2011

2011-12-05T17:32:33Z

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	~~Unlike other~~ [[~~GNSS Augmentation~~]] ~~systems as SBAS or GBAS, Real Time Kinematic~~ (RTK) ~~satellite navigation~~ is a technique ~~used~~ in ~~land survey and in hydrographic survey~~ based on the use of carrier ~~phase~~ measurements of the ~~GPS~~, ~~GLONASS~~ and~~/or Galileo signals where~~ a ~~single reference station provides the~~ real-time ~~corrections~~, ~~providing up to centimeter-level accuracy~~.<ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref> ~~Therefore~~, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>		With origin dating back to the mid-1990s, [[Real Time Kinematics]] (RTK) is a [[Differential GNSS\|differential GNSS]] technique which provides high positioning performance in the vicinity of a base station. The technique is based on the use of carrier measurements and the transmission of corrections from the base station, whose location is well known, to the rover, so that the main errors that drive the stand-alone positioning cancel out. A RTK base station covers a service area spreading about 10 or 20 kilometres, and a real time communication channel is needed connecting base and rover. RTK, which achieves performances in the range of a few centimetres, is a technique commonly used in surveying applications.<ref name="RTKIAG">[http://www.wasoft.de/e/iagwg451/ International Association of Geodesy (IAG) Working Group 4.5.1: Network RTK ] </ref><ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref><ref name="RTKWPNC06">[http://www.wpnc.net/fileadmin/WPNC06/Proceedings/34_Precise_Positioning_in_Real-Time_using_Navigation_Satellites_and.pdf Remote Sensing 2009, A. Rietdorf et al., ''Precise Positioning in Real-Time using Navigation Satellites and Telecommunication'', Proceedings of the 3rd Workshop on Positioning, Navigation and Communication (WPNC’06) ]</ref>

			The standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>

	==RTCM Standards==		==RTCM Standards==

	The internationally accepted data transmission standards for DGNSS are defined by RTCM, particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> RTCM SC-104 is a standard that defines the data structure for differential correction information for a variety of differential correction applications. It was developed by the [http://www.rtcm.org~~/overview.php#Standards~~ Radio Technical Commission for Maritime Services] (RTCM) ~~and has become an industry standard for communication of correction information~~. ~~Note that RTCM~~ is a binary ~~data protocol~~.<ref>[http://www.hemispheregps.com/gpstechinfo/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>		The internationally accepted data transmission standards for DGNSS are defined by the [http://www.rtcm.org Radio Technical Commission for Maritime Services] organization (RTCM), particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> The protocol is a binary one designed to optimize the communication throughput.<ref>[http://www.hemispheregps.com/gpstechinfo/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>

	The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.		The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.
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	The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The ~~release~~ of RTCM ~~version~~ 3.1 ~~is developed to be more efficient in terms~~ of ~~broadcast~~ bandwidth,<ref>[http://tekmon.gr/2011/03/rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> ~~provides~~ higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and ~~allow~~ the ~~implementation~~ of ~~the~~ RTK networks. More information about RTCM messages can be found in article [[DGNSS Standards\|DGNSS Standards]].		The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The releases of RTCM versions 3.0 and 3.1 focus on the optimization of the use of bandwidth,<ref>[http://tekmon.gr/2011/03/rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> on higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and on the management of RTK networks. More information about RTCM messages can be found in article [[DGNSS Standards\|DGNSS Standards]].

	==Other Standards==		==Other Standards==

	The Compact Measurement Record (CMR) was developed by and initially used by [http://www.trimble.com Trimble] in 1992. The format was developed as a method of transmitting code and carrier phase correction data in a compact format from GPS base stations to GPS rovers for [[Real Time Kinematics\|RTK]] GPS surveying. In 2009, Trimble has introduced a new broadcast		The Compact Measurement Record (CMR) was developed by and initially used by [http://www.trimble.com Trimble] in 1992. The format was developed as a method of transmitting code and carrier phase correction data in a compact format from GPS base stations to GPS rovers for [[Real Time Kinematics\|RTK]] GPS surveying. In 2009, Trimble has introduced a new broadcast
	observation format called [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf CMRx], this has been developed to support significant changes to GNSS constellations which are currently underway. CMRx ~~will allow Real-Time Kinematic (RTK) users~~ to ~~utilize more~~ constellations, ~~satellites,~~ and ~~signals as they become available,~~ to ~~give users faster initializations, improved statistical outputs, and improved~~ performance in ~~canyons~~ and under canopy.<ref>[https://sites.aces.edu/group/crops/precisionag/Publications/Timely%20Information/GPS-GNSS%20Related%20Terminology.pdf GPS/GNSS Related Terminology], [http://www.alabamaprecisionagonline.com www.alabamaprecisionagonline.com].</ref>		observation format called [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf CMRx], this has been developed to support significant changes to GNSS constellations which are currently underway. The purpose of CMRx is to improve the initialization time, to cover additional GNSS core constellations, to deal with new GNSS signals and to improve performance in urban environments and user under canopy.<ref>[https://sites.aces.edu/group/crops/precisionag/Publications/Timely%20Information/GPS-GNSS%20Related%20Terminology.pdf GPS/GNSS Related Terminology], [http://www.alabamaprecisionagonline.com www.alabamaprecisionagonline.com].</ref>

	~~In Europe~~, ~~a particular type of Network~~ RTK ~~based on so-called~~ FKP (Flaechen-Korrektur-Parameter, ~~the German word for~~ spatial correction parameter~~) corrections is widely used~~. ~~FKP corrections~~<ref> Wubenna G., Bagge A., Seeber G., Volker B., Hankemeier P. (1996). ''Reducing Distance Dependent Errors for Real Time Precise DGPS Applications by Establishing Reference Station Networks.'' In Proc. Institute of Navigation National GPS 1996 Kansas, 17-20 September, Vol 2, 1845-1852.</ref> ~~contain information~~, ~~which allows~~ the ~~user to compensate satellite orbit and~~ ionospheric ~~errors as a function of baseline length and effectively fix~~ ambiguities for longer baselines than ~~with~~ a ~~usual RTK~~.<ref name=SEPT_DGPS_RTK/> ~~These parameters can be transmitted~~ to the ~~users through the~~ [http://www.geopp.de/download/geopp-rtcm-fkp59-1.1.pdf RTCM proprietary message type 59.]		According to the company [http://www.septentrio.com/ Septentrio], another RTK standard widely used in Europe is FKP,<ref name=SEPT_DGPS_RTK/> named after the German ''Flaechen-Korrektur-Parameter'', or ''spatial correction parameter''.<ref> Wubenna G., Bagge A., Seeber G., Volker B., Hankemeier P. (1996). ''Reducing Distance Dependent Errors for Real Time Precise DGPS Applications by Establishing Reference Station Networks.'' In Proc. Institute of Navigation National GPS 1996 Kansas, 17-20 September, Vol 2, 1845-1852.</ref> As RTCM 3.0 and 3.1, FKP covers networks of base RTK stations, and, because of the broadcast of ionospheric corrections, allows fixing ambiguities for longer baselines than when a single base station is used.<ref name=SEPT_DGPS_RTK/> In order to provide corrections, FKP makes use of the RTCM proprietary message type 59.<ref>[http://www.geopp.de/download/geopp-rtcm-fkp59-1.1.pdf Gerhard Wübbena, Andreas Bagge, ''RTCM proprietary message type 59'', Geo++® White Paper, Nr. 2006.01, 2006.]</ref>

	==Notes==		==Notes==

Rui.Pereira at 17:56, 8 November 2011

2011-11-08T17:56:35Z

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	{{Article Infobox2}}		{{Article Infobox2
			\|Category=Fundamentals
			\|Authors=GMV
			\|Level=Basic
			\|YearOfPublication=2011
			\|Logo=GMV
			}}
	Unlike other [[GNSS Augmentation]] systems as SBAS or GBAS, Real Time Kinematic (RTK) satellite navigation is a technique used in land survey and in hydrographic survey based on the use of carrier phase measurements of the GPS, GLONASS and/or Galileo signals where a single reference station provides the real-time corrections, providing up to centimeter-level accuracy.<ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref> Therefore, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>		Unlike other [[GNSS Augmentation]] systems as SBAS or GBAS, Real Time Kinematic (RTK) satellite navigation is a technique used in land survey and in hydrographic survey based on the use of carrier phase measurements of the GPS, GLONASS and/or Galileo signals where a single reference station provides the real-time corrections, providing up to centimeter-level accuracy.<ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref> Therefore, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>

Rui.Pereira at 17:54, 8 November 2011

2011-11-08T17:54:05Z

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			{{Article Infobox2}}
	Unlike other [[GNSS Augmentation]] systems as SBAS or GBAS, Real Time Kinematic (RTK) satellite navigation is a technique used in land survey and in hydrographic survey based on the use of carrier phase measurements of the GPS, GLONASS and/or Galileo signals where a single reference station provides the real-time corrections, providing up to centimeter-level accuracy.<ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref> Therefore, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>		Unlike other [[GNSS Augmentation]] systems as SBAS or GBAS, Real Time Kinematic (RTK) satellite navigation is a technique used in land survey and in hydrographic survey based on the use of carrier phase measurements of the GPS, GLONASS and/or Galileo signals where a single reference station provides the real-time corrections, providing up to centimeter-level accuracy.<ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref> Therefore, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>

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	The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The release of RTCM version 3.1 is developed to be more efficient in terms of broadcast bandwidth,<ref>[http://tekmon.gr/2011/03/rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> provides higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and allow the implementation of the RTK networks. More information about RTCM messages can be found in article [[~~Work in Progress:~~DGNSS Standards\|DGNSS Standards]].		The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The release of RTCM version 3.1 is developed to be more efficient in terms of broadcast bandwidth,<ref>[http://tekmon.gr/2011/03/rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> provides higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and allow the implementation of the RTK networks. More information about RTCM messages can be found in article [[DGNSS Standards\|DGNSS Standards]].

	==Other Standards==		==Other Standards==

	The Compact Measurement Record (CMR) was developed by and initially used by [http://www.trimble.com Trimble] in 1992. The format was developed as a method of transmitting code and carrier phase correction data in a compact format from GPS base stations to GPS rovers for [[~~Work in Progress:~~Real Time Kinematics\|RTK]] GPS surveying. In 2009, Trimble has introduced a new broadcast		The Compact Measurement Record (CMR) was developed by and initially used by [http://www.trimble.com Trimble] in 1992. The format was developed as a method of transmitting code and carrier phase correction data in a compact format from GPS base stations to GPS rovers for [[Real Time Kinematics\|RTK]] GPS surveying. In 2009, Trimble has introduced a new broadcast
	observation format called [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf CMRx], this has been developed to support significant changes to GNSS constellations which are currently underway. CMRx will allow Real-Time Kinematic (RTK) users to utilize more constellations, satellites, and signals as they become available, to give users faster initializations, improved statistical outputs, and improved performance in canyons and under canopy.<ref>[https://sites.aces.edu/group/crops/precisionag/Publications/Timely%20Information/GPS-GNSS%20Related%20Terminology.pdf GPS/GNSS Related Terminology], [http://www.alabamaprecisionagonline.com www.alabamaprecisionagonline.com].</ref>		observation format called [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf CMRx], this has been developed to support significant changes to GNSS constellations which are currently underway. CMRx will allow Real-Time Kinematic (RTK) users to utilize more constellations, satellites, and signals as they become available, to give users faster initializations, improved statistical outputs, and improved performance in canyons and under canopy.<ref>[https://sites.aces.edu/group/crops/precisionag/Publications/Timely%20Information/GPS-GNSS%20Related%20Terminology.pdf GPS/GNSS Related Terminology], [http://www.alabamaprecisionagonline.com www.alabamaprecisionagonline.com].</ref>

Jose.Caro at 18:11, 29 September 2011

2011-09-29T18:11:13Z

← Older revision		Revision as of 18:11, 29 September 2011
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	Unlike other [[GNSS Augmentation]] systems as SBAS or GBAS, Real Time Kinematic (RTK) satellite navigation is a technique used in land survey and in hydrographic survey based on the use of carrier phase measurements of the GPS, GLONASS and/or Galileo signals where a single reference station provides the real-time corrections, providing up to centimeter-level accuracy. Therefore, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).		Unlike other [[GNSS Augmentation]] systems as SBAS or GBAS, Real Time Kinematic (RTK) satellite navigation is a technique used in land survey and in hydrographic survey based on the use of carrier phase measurements of the GPS, GLONASS and/or Galileo signals where a single reference station provides the real-time corrections, providing up to centimeter-level accuracy.<ref name="RTK_WIKI">[http://en.wikipedia.org/wiki/Real_Time_Kinematic RTK in Wikipedia]</ref> Therefore, the standards applying to RTK systems are the same of classical DGNSS systems, i.e. the ones of data transmission standards defined by the Special Committee 104 on DGNSS of the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM). Besides RTCM, there exist other proprietary DGPS/RTK standards, such as [http://www.trimble.com Trimble] [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf Compact Measurement Record] (CMR).<ref name=SEPT_DGPS_RTK>[http://www.septentrio.com/support/about-gnss/dgps-vs-rtk DGPS vs RTK, Septentrio]</ref>

	==RTCM Standards==		==RTCM Standards==

	The internationally accepted data transmission standards for DGNSS are defined by RTCM, particularly by its Special Committee SC-104. RTCM SC-104 is a standard that defines the data structure for differential correction information for a variety of differential correction applications. It was developed by the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM) and has become an industry standard for communication of correction information. Note that RTCM is a binary data protocol.		The internationally accepted data transmission standards for DGNSS are defined by RTCM, particularly by its Special Committee SC-104.<ref name=SEPT_DGPS_RTK/> RTCM SC-104 is a standard that defines the data structure for differential correction information for a variety of differential correction applications. It was developed by the [http://www.rtcm.org/overview.php#Standards Radio Technical Commission for Maritime Services] (RTCM) and has become an industry standard for communication of correction information. Note that RTCM is a binary data protocol.<ref>[http://www.hemispheregps.com/gpstechinfo/RTCM_SC-104_Protocol.htm RTCM SC-104 Protocol], in [http://www.hemispheregps.com/ Hemisphere GPS] homepage</ref>

	The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.		The applicable documents to DGNSS systems are listed in the following table and constitute the current version of the core set of documents to be used for the development of a new DGNSS system.
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	The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The release of RTCM version 3.1 is developed to be more efficient in terms of broadcast bandwidth, provides higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and allow the implementation of the RTK networks. More information about RTCM messages can be found in article [[Work in Progress:DGNSS Standards\|DGNSS Standards]].		The RTCM 10402.3 standards defined the messages for differential correction information. The messages 1 to 17 are available in older RTCM versions, while messages 18-21 have been added in version 2.3 to make the standard applicable to RTK corrections. The release of RTCM version 3.1 is developed to be more efficient in terms of broadcast bandwidth,<ref>[http://tekmon.gr/2011/03/rtcm-sc-104-transmission-protocols/ RTCM SC-104 transmission protocols], by [http://tekmon.gr/ TEKMON Geomatics]</ref> provides higher integrity<ref> Lin Minmin (2006). ''RTCM 3.0 Implementation in Network RTK and Performance Analysis.'' Msc Thesis, University of Calgary, Dept of Geomatic Engineering.</ref> and allow the implementation of the RTK networks. More information about RTCM messages can be found in article [[Work in Progress:DGNSS Standards\|DGNSS Standards]].

	==Other Standards==		==Other Standards==

	The Compact Measurement Record (CMR) was developed by and initially used by [http://www.trimble.com Trimble] in 1992. The format was developed as a method of transmitting code and carrier phase correction data in a compact format from GPS base stations to GPS rovers for [[Work in Progress:Real Time Kinematics\|RTK]] GPS surveying. In 2009, Trimble has introduced a new broadcast		The Compact Measurement Record (CMR) was developed by and initially used by [http://www.trimble.com Trimble] in 1992. The format was developed as a method of transmitting code and carrier phase correction data in a compact format from GPS base stations to GPS rovers for [[Work in Progress:Real Time Kinematics\|RTK]] GPS surveying. In 2009, Trimble has introduced a new broadcast
	observation format called [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf CMRx], this has been developed to support significant changes to GNSS constellations which are currently underway. CMRx will allow Real-Time Kinematic (RTK) users to utilize more constellations, satellites, and signals as they become available, to give users faster initializations, improved statistical outputs, and improved performance in canyons and under canopy.		observation format called [http://trl.trimble.com/docushare/dsweb/Get/Document-469944/WhitePaper_HeavyHighway_CMRxrev1.pdf CMRx], this has been developed to support significant changes to GNSS constellations which are currently underway. CMRx will allow Real-Time Kinematic (RTK) users to utilize more constellations, satellites, and signals as they become available, to give users faster initializations, improved statistical outputs, and improved performance in canyons and under canopy.<ref>[https://sites.aces.edu/group/crops/precisionag/Publications/Timely%20Information/GPS-GNSS%20Related%20Terminology.pdf GPS/GNSS Related Terminology], [http://www.alabamaprecisionagonline.com www.alabamaprecisionagonline.com].</ref>

	In Europe, a particular type of Network RTK based on so-called FKP (Flaechen-Korrektur-Parameter, the German word for spatial correction parameter) corrections is widely used. FKP corrections<ref> Wubenna G., Bagge A., Seeber G., Volker B., Hankemeier P. (1996). ''Reducing Distance Dependent Errors for Real Time Precise DGPS Applications by Establishing Reference Station Networks.'' In Proc. Institute of Navigation National GPS 1996 Kansas, 17-20 September, Vol 2, 1845-1852.</ref> contain information, which allows the user to compensate satellite orbit and ionospheric errors as a function of baseline length and effectively fix ambiguities for longer baselines than with a usual RTK. These parameters can be transmitted to the users through the [http://www.geopp.de/download/geopp-rtcm-fkp59-1.1.pdf RTCM proprietary message type 59.]		In Europe, a particular type of Network RTK based on so-called FKP (Flaechen-Korrektur-Parameter, the German word for spatial correction parameter) corrections is widely used. FKP corrections<ref> Wubenna G., Bagge A., Seeber G., Volker B., Hankemeier P. (1996). ''Reducing Distance Dependent Errors for Real Time Precise DGPS Applications by Establishing Reference Station Networks.'' In Proc. Institute of Navigation National GPS 1996 Kansas, 17-20 September, Vol 2, 1845-1852.</ref> contain information, which allows the user to compensate satellite orbit and ionospheric errors as a function of baseline length and effectively fix ambiguities for longer baselines than with a usual RTK.<ref name=SEPT_DGPS_RTK/> These parameters can be transmitted to the users through the [http://www.geopp.de/download/geopp-rtcm-fkp59-1.1.pdf RTCM proprietary message type 59.]

	==Notes==		==Notes==

Rui.Pereira: moved Work in Progress:RTK Standards to RTK Standards

2011-06-30T12:32:33Z

moved Work in Progress:RTK Standards to RTK Standards

← Older revision	Revision as of 12:32, 30 June 2011
(No difference)