Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/14605 http://hdl.handle.net/11449/6705 |
Resumo: | To prevent large errors in the GPS positioning, cycle slips should be detected and corrected. Such procedure is not trivial, mainly for single frequency receivers, but normally it is not noticed by the users. Thus, it will be discussed some practical and more used methods for cycle slips detection and correction using just GPS single-frequency observations. In the detection, the triple (TD) and tetra differences were used. In relation to the correction, in general, each slip is corrected in the preprocessing. Otherwise, other strategies should be adopted during the processing. In this paper, the option was to the second option, and two strategies were tested. In one of them, the elements of the covariance matrix of the involved ambiguities are modified and new ambiguity estimation starts. In the one, a new ambiguity is introduced as additional unknown when a cycle slip is detected. These possibilities are discussed and compared in this paper, as well as the aspects related to the practicity, implementation and viability of each one. Some experiments were carried out using simulated data with cycle slips in different satellites and epochs of the data. This allowed assessing and comparing the results of different occurrence of cycle slip and correction in several conditions. |
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Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1Assessment of strategies for detection and correction of cycle slips on GPS L1 observablesCicle slipsDouble differencesTetra differencesRTKTo prevent large errors in the GPS positioning, cycle slips should be detected and corrected. Such procedure is not trivial, mainly for single frequency receivers, but normally it is not noticed by the users. Thus, it will be discussed some practical and more used methods for cycle slips detection and correction using just GPS single-frequency observations. In the detection, the triple (TD) and tetra differences were used. In relation to the correction, in general, each slip is corrected in the preprocessing. Otherwise, other strategies should be adopted during the processing. In this paper, the option was to the second option, and two strategies were tested. In one of them, the elements of the covariance matrix of the involved ambiguities are modified and new ambiguity estimation starts. In the one, a new ambiguity is introduced as additional unknown when a cycle slip is detected. These possibilities are discussed and compared in this paper, as well as the aspects related to the practicity, implementation and viability of each one. Some experiments were carried out using simulated data with cycle slips in different satellites and epochs of the data. This allowed assessing and comparing the results of different occurrence of cycle slip and correction in several conditions.Univ Estadual Paulista, Fac Ciencias & Tecnol, Dept Cartog, Presidente Prudente, SP, BrazilUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Cartog, Presidente Prudente, SP, BrazilUniversidade Federal do Paraná (UFPR), Centro PolitecnicoUniversidade Estadual Paulista (Unesp)Galera Monico, Joao Francisco [UNESP]De Souza, Eniuce Menezes [UNESP]Machado, Wagner Carrupt2014-05-20T13:22:43Z2014-05-20T13:22:43Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article178-193application/pdfhttp://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/14605Boletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 2, p. 178-193, 2009.1413-4853http://hdl.handle.net/11449/6705WOS:000268706400002WOS000268706400002.pdf7180879644760038Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBoletim de Ciências Geodésicas0,188info:eu-repo/semantics/openAccess2024-06-18T15:01:11Zoai:repositorio.unesp.br:11449/6705Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:59:08.871524Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 Assessment of strategies for detection and correction of cycle slips on GPS L1 observables |
title |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 |
spellingShingle |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 Galera Monico, Joao Francisco [UNESP] Cicle slips Double differences Tetra differences RTK |
title_short |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 |
title_full |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 |
title_fullStr |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 |
title_full_unstemmed |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 |
title_sort |
Avaliação de estratégias de detecção e correção de perdas de ciclos na portadora GPS L1 |
author |
Galera Monico, Joao Francisco [UNESP] |
author_facet |
Galera Monico, Joao Francisco [UNESP] De Souza, Eniuce Menezes [UNESP] Machado, Wagner Carrupt |
author_role |
author |
author2 |
De Souza, Eniuce Menezes [UNESP] Machado, Wagner Carrupt |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Galera Monico, Joao Francisco [UNESP] De Souza, Eniuce Menezes [UNESP] Machado, Wagner Carrupt |
dc.subject.por.fl_str_mv |
Cicle slips Double differences Tetra differences RTK |
topic |
Cicle slips Double differences Tetra differences RTK |
description |
To prevent large errors in the GPS positioning, cycle slips should be detected and corrected. Such procedure is not trivial, mainly for single frequency receivers, but normally it is not noticed by the users. Thus, it will be discussed some practical and more used methods for cycle slips detection and correction using just GPS single-frequency observations. In the detection, the triple (TD) and tetra differences were used. In relation to the correction, in general, each slip is corrected in the preprocessing. Otherwise, other strategies should be adopted during the processing. In this paper, the option was to the second option, and two strategies were tested. In one of them, the elements of the covariance matrix of the involved ambiguities are modified and new ambiguity estimation starts. In the one, a new ambiguity is introduced as additional unknown when a cycle slip is detected. These possibilities are discussed and compared in this paper, as well as the aspects related to the practicity, implementation and viability of each one. Some experiments were carried out using simulated data with cycle slips in different satellites and epochs of the data. This allowed assessing and comparing the results of different occurrence of cycle slip and correction in several conditions. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-01-01 2014-05-20T13:22:43Z 2014-05-20T13:22:43Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/14605 Boletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 2, p. 178-193, 2009. 1413-4853 http://hdl.handle.net/11449/6705 WOS:000268706400002 WOS000268706400002.pdf 7180879644760038 |
url |
http://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/14605 http://hdl.handle.net/11449/6705 |
identifier_str_mv |
Boletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 2, p. 178-193, 2009. 1413-4853 WOS:000268706400002 WOS000268706400002.pdf 7180879644760038 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Boletim de Ciências Geodésicas 0,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
178-193 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal do Paraná (UFPR), Centro Politecnico |
publisher.none.fl_str_mv |
Universidade Federal do Paraná (UFPR), Centro Politecnico |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128590173175808 |