Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning

Methods based on integer ambiguity determination, such as the least-squares ambiguity decorrelation adjustment (LAMBDA) method, are currently used for precise global navigation satellite system (GNSS) differential positioning. In the present paper, the author proposes an ambiguity-free method based...

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Autor: Baselga Moreno, Sergio|||0000-0002-0492-4003
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/61535
Acceso en línea:https://riunet.upv.es/handle/10251/61535
Access Level:acceso abierto
Palabra clave:Global positioning systems
Optimization
Measurement
Satellites
INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA
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spelling Ambiguity-Free Method for Fast and Precise GNSS Differential PositioningBaselga Moreno, Sergio|||0000-0002-0492-4003Global positioning systemsOptimizationMeasurementSatellitesINGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIAMethods based on integer ambiguity determination, such as the least-squares ambiguity decorrelation adjustment (LAMBDA) method, are currently used for precise global navigation satellite system (GNSS) differential positioning. In the present paper, the author proposes an ambiguity-free method based on a dedicated mixed (stochastic/deterministic) optimization algorithm that, unlike the LAMBDA method, is capable of providing reliable and accurate results using few observation epochs (e.g., 1-cm accuracy with just two epochs), having the additional advantages of insensitivity to cycle slips and impossibility of wrong ambiguity fixation. In addition, it is demonstrated that the application of the linear (deterministic) part of this algorithm yields the correct baseline results much more easily and quickly than methods requiring integer ambiguity determination, provided the initial approximate coordinates are accurate to a few centimeters. However, the use of ambiguity-free methods requires that the integer character of the ambiguities be preserved so that they can be eliminated; therefore no ionosphere-free combination can be computed and the methods are valid only for short baselines (e.g., less than 10 km).American Society of Civil EngineersDepartamento de Ingeniería Cartográfica Geodesia y FotogrametríaEscuela Técnica Superior de Ingeniería Geodésica, Cartográfica y TopográficaGrupo de Cartografía, Geodesia y GPSRepositorio Institucional de la Universitat Politècnica de València Riunet20142014-02-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://riunet.upv.es/handle/10251/61535reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/615352026-06-13T07:49:27Z
dc.title.none.fl_str_mv Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
title Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
spellingShingle Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
Baselga Moreno, Sergio|||0000-0002-0492-4003
Global positioning systems
Optimization
Measurement
Satellites
INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA
title_short Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
title_full Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
title_fullStr Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
title_full_unstemmed Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
title_sort Ambiguity-Free Method for Fast and Precise GNSS Differential Positioning
dc.creator.none.fl_str_mv Baselga Moreno, Sergio|||0000-0002-0492-4003
author Baselga Moreno, Sergio|||0000-0002-0492-4003
author_facet Baselga Moreno, Sergio|||0000-0002-0492-4003
author_role author
dc.contributor.none.fl_str_mv Departamento de Ingeniería Cartográfica Geodesia y Fotogrametría
Escuela Técnica Superior de Ingeniería Geodésica, Cartográfica y Topográfica
Grupo de Cartografía, Geodesia y GPS
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Global positioning systems
Optimization
Measurement
Satellites
INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA
topic Global positioning systems
Optimization
Measurement
Satellites
INGENIERIA CARTOGRAFICA, GEODESIA Y FOTOGRAMETRIA
description Methods based on integer ambiguity determination, such as the least-squares ambiguity decorrelation adjustment (LAMBDA) method, are currently used for precise global navigation satellite system (GNSS) differential positioning. In the present paper, the author proposes an ambiguity-free method based on a dedicated mixed (stochastic/deterministic) optimization algorithm that, unlike the LAMBDA method, is capable of providing reliable and accurate results using few observation epochs (e.g., 1-cm accuracy with just two epochs), having the additional advantages of insensitivity to cycle slips and impossibility of wrong ambiguity fixation. In addition, it is demonstrated that the application of the linear (deterministic) part of this algorithm yields the correct baseline results much more easily and quickly than methods requiring integer ambiguity determination, provided the initial approximate coordinates are accurate to a few centimeters. However, the use of ambiguity-free methods requires that the integer character of the ambiguities be preserved so that they can be eliminated; therefore no ionosphere-free combination can be computed and the methods are valid only for short baselines (e.g., less than 10 km).
publishDate 2014
dc.date.none.fl_str_mv 2014
2014-02-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/61535
url https://riunet.upv.es/handle/10251/61535
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Society of Civil Engineers
publisher.none.fl_str_mv American Society of Civil Engineers
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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