Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014)
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jastp.2019.03.013 http://hdl.handle.net/11449/187809 |
Resumo: | GNSS (Global Navigation Satellite Systems) can provide high accuracy positioning at low cost. But, depending on the sources of error, e.g. the atmospheric effects, this accuracy can be degraded. The ionosphere is one of the most important error sources in GNSS positioning. Among several effects caused by the ionosphere, irregularities such as ionospheric scintillations are very relevant. They can cause cycle slips, degrade the positioning accuracy and, when severe enough, can even lead to a complete loss of signal lock. Brazil, in particular, is located in one of the regions most affected by ionospheric scintillations and these effects were intensified during the last solar maximum. The main goal of this paper is to evaluate the impact of scintillation effects on the degradation of positioning during the last solar maximum. Data from 2012 to 2014 of three reference stations located in different regions of Brazil was used. Statistically significant correlations were identified from Spearman's correlation coefficient. Using Odds Ratio, an effect-size statistic, it was possible to see that the chance of large discrepancies in 3D positioning coordinates could be three times greater under strong scintillation effects (S4 ≥ 1) than under moderate ones (0.5<S4<1). |
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Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014)GNSS positioningIonosphereOdds ratioScintillationSpearman correlationTime seriesGNSS (Global Navigation Satellite Systems) can provide high accuracy positioning at low cost. But, depending on the sources of error, e.g. the atmospheric effects, this accuracy can be degraded. The ionosphere is one of the most important error sources in GNSS positioning. Among several effects caused by the ionosphere, irregularities such as ionospheric scintillations are very relevant. They can cause cycle slips, degrade the positioning accuracy and, when severe enough, can even lead to a complete loss of signal lock. Brazil, in particular, is located in one of the regions most affected by ionospheric scintillations and these effects were intensified during the last solar maximum. The main goal of this paper is to evaluate the impact of scintillation effects on the degradation of positioning during the last solar maximum. Data from 2012 to 2014 of three reference stations located in different regions of Brazil was used. Statistically significant correlations were identified from Spearman's correlation coefficient. Using Odds Ratio, an effect-size statistic, it was possible to see that the chance of large discrepancies in 3D positioning coordinates could be three times greater under strong scintillation effects (S4 ≥ 1) than under moderate ones (0.5<S4<1).Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)European CommissionUNESP - São Paulo State University School of Technology and Sciences, Roberto Simonsen, 305Maringa State University - UEM – Brazil, Colombo Av., 5790UNESP - São Paulo State University School of Technology and Sciences, Roberto Simonsen, 305FAPESP: 06/04008-2FAPESP: 2012/19906-7CNPq: 303079/2011-8CNPq: 304247/2012-0CNPq: 473973/2012European Commission: FP7-GALILEO-2009-GSAEuropean Commission: FP7–GALILEO–2011–GSA–1aUniversidade Estadual Paulista (Unesp)Universidade Estadual de Maringá (UEM)Alves, Daniele Barroca Marra [UNESP]de Souza, Eniuce MenezesGouveia, Tayná Aparecida Ferreira [UNESP]2019-10-06T15:47:52Z2019-10-06T15:47:52Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jastp.2019.03.013Journal of Atmospheric and Solar-Terrestrial Physics.1364-6826http://hdl.handle.net/11449/18780910.1016/j.jastp.2019.03.0132-s2.0-85067960144Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Atmospheric and Solar-Terrestrial Physicsinfo:eu-repo/semantics/openAccess2021-10-23T19:02:08Zoai:repositorio.unesp.br:11449/187809Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:58:34.018574Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
title |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
spellingShingle |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) Alves, Daniele Barroca Marra [UNESP] GNSS positioning Ionosphere Odds ratio Scintillation Spearman correlation Time series |
title_short |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
title_full |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
title_fullStr |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
title_full_unstemmed |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
title_sort |
Correlation between ionospheric scintillation effects and GNSS positioning over Brazil during the last solar maximum (2012–2014) |
author |
Alves, Daniele Barroca Marra [UNESP] |
author_facet |
Alves, Daniele Barroca Marra [UNESP] de Souza, Eniuce Menezes Gouveia, Tayná Aparecida Ferreira [UNESP] |
author_role |
author |
author2 |
de Souza, Eniuce Menezes Gouveia, Tayná Aparecida Ferreira [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Estadual de Maringá (UEM) |
dc.contributor.author.fl_str_mv |
Alves, Daniele Barroca Marra [UNESP] de Souza, Eniuce Menezes Gouveia, Tayná Aparecida Ferreira [UNESP] |
dc.subject.por.fl_str_mv |
GNSS positioning Ionosphere Odds ratio Scintillation Spearman correlation Time series |
topic |
GNSS positioning Ionosphere Odds ratio Scintillation Spearman correlation Time series |
description |
GNSS (Global Navigation Satellite Systems) can provide high accuracy positioning at low cost. But, depending on the sources of error, e.g. the atmospheric effects, this accuracy can be degraded. The ionosphere is one of the most important error sources in GNSS positioning. Among several effects caused by the ionosphere, irregularities such as ionospheric scintillations are very relevant. They can cause cycle slips, degrade the positioning accuracy and, when severe enough, can even lead to a complete loss of signal lock. Brazil, in particular, is located in one of the regions most affected by ionospheric scintillations and these effects were intensified during the last solar maximum. The main goal of this paper is to evaluate the impact of scintillation effects on the degradation of positioning during the last solar maximum. Data from 2012 to 2014 of three reference stations located in different regions of Brazil was used. Statistically significant correlations were identified from Spearman's correlation coefficient. Using Odds Ratio, an effect-size statistic, it was possible to see that the chance of large discrepancies in 3D positioning coordinates could be three times greater under strong scintillation effects (S4 ≥ 1) than under moderate ones (0.5<S4<1). |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:47:52Z 2019-10-06T15:47:52Z 2019-01-01 |
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://dx.doi.org/10.1016/j.jastp.2019.03.013 Journal of Atmospheric and Solar-Terrestrial Physics. 1364-6826 http://hdl.handle.net/11449/187809 10.1016/j.jastp.2019.03.013 2-s2.0-85067960144 |
url |
http://dx.doi.org/10.1016/j.jastp.2019.03.013 http://hdl.handle.net/11449/187809 |
identifier_str_mv |
Journal of Atmospheric and Solar-Terrestrial Physics. 1364-6826 10.1016/j.jastp.2019.03.013 2-s2.0-85067960144 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Atmospheric and Solar-Terrestrial Physics |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus 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_ |
1808129379700572160 |