Análise e comparação do comportamento da ionosfera e do posicionamento por ponto em períodos de alta e baixa atividade solar

dc.contributor.authorSalomoni, Christiane Silva
dc.contributor.authorMatsuoka, Marcelo Tomio
dc.contributor.authorDe Souza, Sergio Florencio
dc.contributor.authorCamargo, Paulo de Oliveira [UNESP]
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul (UFRGS)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:22:44Z
dc.date.available2014-05-20T13:22:44Z
dc.date.issued2009-07-01
dc.description.abstractThe ionosphere is a major source of systematic error in the GPS observables. As this error is directly proportional to the TEC (Total Electron Content), the quality of GPS positioning (especially with single frequency receivers) can be significantly affected by regular changes of TEC. The ionosphere factor is even more relevant in the Brazilian region, where ionospheric phenomena, such as the Equatorial Anomaly, intensify these variations. Taking the above mentioned factors into account, experiments were conducted in this research to evaluate the daily and seasonal behavior of the TEC and the point positioning with GPS (single frequency) in periods of high and low solar activity in the Brazilian region. The results showed a direct correlation between the decrease in electrons density in the ionosphere (period of low solar activity) and improvement in positioning accuracy, as well as a large influence of Equatorial Anomaly on the results of point positioning.en
dc.description.affiliationUniversidade Federal do Rio Grande do Sul (UFRGS), Inst Geociencias, Dept Geodesia, Lab Pesquisas Geodesia, BR-91501970 Porto Alegre, RS, Brazil
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Cartog, BR-19060900 Presidente Prudente, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Cartog, BR-19060900 Presidente Prudente, SP, Brazil
dc.format.extent333-351
dc.identifierhttp://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/article/view/15511
dc.identifier.citationBoletim de Ciências Geodesicas. Curitiba Pr: Universidade Federal do Paraná (UFPR), Centro Politecnico, v. 15, n. 3, p. 333-351, 2009.
dc.identifier.fileWOS000270983800003.pdf
dc.identifier.issn1413-4853
dc.identifier.lattes6790708247598813
dc.identifier.orcid0000-0001-7648-1291
dc.identifier.urihttp://hdl.handle.net/11449/6709
dc.identifier.wosWOS:000270983800003
dc.language.isopor
dc.publisherUniversidade Federal do Paraná (UFPR), Centro Politecnico
dc.relation.ispartofBoletim de Ciências Geodésicas
dc.relation.ispartofsjr0,188
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectGPS Positioningen
dc.subjectIonosphereen
dc.subjectTECen
dc.titleAnálise e comparação do comportamento da ionosfera e do posicionamento por ponto em períodos de alta e baixa atividade solarpt
dc.title.alternativeAnalysis and comparison of ionosphere behavior and point positioning in periods of high and low solar activityen
dc.typeArtigo
dcterms.licensehttp://ojs.c3sl.ufpr.br/ojs2/index.php/bcg/about/submissions#copyrightNotice
dcterms.rightsHolderUniversidade Federal do Paraná (UFPR), Centro Politecnico
unesp.author.lattes6790708247598813[4]
unesp.author.orcid0000-0001-7648-1291[4]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências e Tecnologia, Presidente Prudentept

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