Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region

Detalhes bibliográficos
Autor(a) principal: Matsuoka, Marcelo Tomio
Data de Publicação: 2007
Outros Autores: Camargo, Paulo de Oliveira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Boletim de Ciências Geodésicas
Texto Completo: https://revistas.ufpr.br/bcg/article/view/10727
Resumo: One of the main drawbacks of the GPS accuracy for L1 users is the error due toionosphere. This error depends on the total electron content presents in theionosphere, as well as of the carrier frequency. Some models have been developedto correct GPS observables of the systematic error due to the ionosphere. The modelmore known and used is the Klobuchar model, which corrected 50-60% of theionospheric error approximately. Alternatively, IGS (International GNSS Service)also has developed a model called Global Ionospheric Map (GIM). These maps, informat IONEX, are available in the site of the IGS, and one of the applications ofthem is to correct the GPS observables of the error due to ionosphere. This workaims at evaluating the quality of GPS point positioning using the IGS ionosphericmodel in the Brazilian region. Tests carried out had shown an average improvementin the horizontal and vertical determination of 72% and 26%, respectively, whenGIM is used in the point positioning.
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spelling Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian regionCORREÇÃO IONOSFÉRICA UTILIZANDO OS MAPAS GLOBAIS DO TEC DO IGS: Avaliação no posicionamento por ponto na região brasileiraPosicionamento com GPS; Ionosfera; Modelo da Ionosfera do IGS; GPS Positioning; Ionosphere; IGS Ionospheric ModelOne of the main drawbacks of the GPS accuracy for L1 users is the error due toionosphere. This error depends on the total electron content presents in theionosphere, as well as of the carrier frequency. Some models have been developedto correct GPS observables of the systematic error due to the ionosphere. The modelmore known and used is the Klobuchar model, which corrected 50-60% of theionospheric error approximately. Alternatively, IGS (International GNSS Service)also has developed a model called Global Ionospheric Map (GIM). These maps, informat IONEX, are available in the site of the IGS, and one of the applications ofthem is to correct the GPS observables of the error due to ionosphere. This workaims at evaluating the quality of GPS point positioning using the IGS ionosphericmodel in the Brazilian region. Tests carried out had shown an average improvementin the horizontal and vertical determination of 72% and 26%, respectively, whenGIM is used in the point positioning.Um dos principais fatores que limita a acurácia do posicionamento com receptoresGPS de uma freqüência é o erro devido à ionosfera. Este erro é proporcional aoconteúdo total de elétrons presente na ionosfera e inversamente proporcional aoquadrado da freqüência do sinal. Alguns modelos têm sido desenvolvidos para acorreção das observáveis GPS do erro sistemático devido à ionosfera. O exemplomais conhecido e utilizado é o modelo de Klobuchar que corrigi algo em torno de50 a 60% do erro ionosférico. Alternativamente, o IGS (International GNSSService) também possui um modelo conhecido como Mapa Global da Ionosfera(GIM – Global Ionospheric Map). Estes mapas são disponibilizados gratuitamentepelo IGS na internet a partir de arquivos no formato IONEX e, uma das aplicações,é utilizá-los para realizar a correção das observáveis GPS do erro devido àionosfera. Este trabalho tem como objetivo avaliar a qualidade do posicionamentopor ponto utilizando as pseudodistâncias corrigidas do efeito da ionosfera, a partirdos arquivos IONEX do IGS, para a região brasileira. Os experimentos realizadosmostraram uma melhora média na determinação planimétrica de 26% e na altitudegeométrica de 72%, quando utilizado o modelo da ionosfera do IGS.Boletim de Ciências GeodésicasBulletin of Geodetic Sciences2007-12-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufpr.br/bcg/article/view/10727Boletim de Ciências Geodésicas; Vol 13, No 2 (2007)Bulletin of Geodetic Sciences; Vol 13, No 2 (2007)1982-21701413-4853reponame:Boletim de Ciências Geodésicasinstname:Universidade Federal do Paraná (UFPR)instacron:UFPRporhttps://revistas.ufpr.br/bcg/article/view/10727/7127Matsuoka, Marcelo TomioCamargo, Paulo de Oliveirainfo:eu-repo/semantics/openAccess2008-05-12T17:32:11Zoai:revistas.ufpr.br:article/10727Revistahttps://revistas.ufpr.br/bcgPUBhttps://revistas.ufpr.br/bcg/oaiqdalmolin@ufpr.br|| danielsantos@ufpr.br||qdalmolin@ufpr.br|| danielsantos@ufpr.br1982-21701413-4853opendoar:2008-05-12T17:32:11Boletim de Ciências Geodésicas - Universidade Federal do Paraná (UFPR)false
dc.title.none.fl_str_mv Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
CORREÇÃO IONOSFÉRICA UTILIZANDO OS MAPAS GLOBAIS DO TEC DO IGS: Avaliação no posicionamento por ponto na região brasileira
title Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
spellingShingle Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
Matsuoka, Marcelo Tomio
Posicionamento com GPS; Ionosfera; Modelo da Ionosfera do IGS; GPS Positioning; Ionosphere; IGS Ionospheric Model
title_short Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
title_full Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
title_fullStr Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
title_full_unstemmed Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
title_sort Ionospheric correction using IGS Global TEC Maps: Evaluation at the GPS point positioning in the Brazilian region
author Matsuoka, Marcelo Tomio
author_facet Matsuoka, Marcelo Tomio
Camargo, Paulo de Oliveira
author_role author
author2 Camargo, Paulo de Oliveira
author2_role author
dc.contributor.author.fl_str_mv Matsuoka, Marcelo Tomio
Camargo, Paulo de Oliveira
dc.subject.por.fl_str_mv Posicionamento com GPS; Ionosfera; Modelo da Ionosfera do IGS; GPS Positioning; Ionosphere; IGS Ionospheric Model
topic Posicionamento com GPS; Ionosfera; Modelo da Ionosfera do IGS; GPS Positioning; Ionosphere; IGS Ionospheric Model
description One of the main drawbacks of the GPS accuracy for L1 users is the error due toionosphere. This error depends on the total electron content presents in theionosphere, as well as of the carrier frequency. Some models have been developedto correct GPS observables of the systematic error due to the ionosphere. The modelmore known and used is the Klobuchar model, which corrected 50-60% of theionospheric error approximately. Alternatively, IGS (International GNSS Service)also has developed a model called Global Ionospheric Map (GIM). These maps, informat IONEX, are available in the site of the IGS, and one of the applications ofthem is to correct the GPS observables of the error due to ionosphere. This workaims at evaluating the quality of GPS point positioning using the IGS ionosphericmodel in the Brazilian region. Tests carried out had shown an average improvementin the horizontal and vertical determination of 72% and 26%, respectively, whenGIM is used in the point positioning.
publishDate 2007
dc.date.none.fl_str_mv 2007-12-31
dc.type.none.fl_str_mv

dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufpr.br/bcg/article/view/10727
url https://revistas.ufpr.br/bcg/article/view/10727
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufpr.br/bcg/article/view/10727/7127
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Boletim de Ciências Geodésicas
Bulletin of Geodetic Sciences
publisher.none.fl_str_mv Boletim de Ciências Geodésicas
Bulletin of Geodetic Sciences
dc.source.none.fl_str_mv Boletim de Ciências Geodésicas; Vol 13, No 2 (2007)
Bulletin of Geodetic Sciences; Vol 13, No 2 (2007)
1982-2170
1413-4853
reponame:Boletim de Ciências Geodésicas
instname:Universidade Federal do Paraná (UFPR)
instacron:UFPR
instname_str Universidade Federal do Paraná (UFPR)
instacron_str UFPR
institution UFPR
reponame_str Boletim de Ciências Geodésicas
collection Boletim de Ciências Geodésicas
repository.name.fl_str_mv Boletim de Ciências Geodésicas - Universidade Federal do Paraná (UFPR)
repository.mail.fl_str_mv qdalmolin@ufpr.br|| danielsantos@ufpr.br||qdalmolin@ufpr.br|| danielsantos@ufpr.br
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