Publicação:
Second and Third Order Ionospheric Effects on GNSS Positioning: A Case Study in Brazil

dc.contributor.authorMarques, H. A. [UNESP]
dc.contributor.authorMonico, J. F. G. [UNESP]
dc.contributor.authorRosa, G. P. S. [UNESP]
dc.contributor.authorChuerubim, M. L. [UNESP]
dc.contributor.authorAquino, Marcio
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:22:38Z
dc.date.available2014-05-20T13:22:38Z
dc.date.issued2012-01-01
dc.description.abstractThe Global Positioning System (GPS) transmits signals in two frequencies. It allows the correction of the first order ionospheric effect by using the ionosphere free combination. However, the second and third order ionospheric effects, which combined may cause errors of the order of centimeters in the GPS measurements, still remain. In this paper the second and third order ionospheric effects, which were taken into account in the GPS data processing in the Brazilian region, were investigated. The corrected and not corrected GPS data from these effects were processed in the relative and precise point positioning (PPP) approaches, respectively, using Bernese V5.0 software and the PPP software (GPSPPP) from NRCAN (Natural Resources Canada). The second and third order corrections were applied in the GPS data using an in-house software that is capable of reading a RINEX file and applying the corrections to the GPS observables, creating a corrected RINEX file. For the relative processing case, a Brazilian network with long baselines was processed in a daily solution considering a period of approximately one year. For the PPP case, the processing was accomplished using data collected by the IGS FORT station considering the period from 2001 to 2006 and a seasonal analysis was carried out, showing a semi-annual and an annual variation in the vertical component. In addition, a geographical variation analysis in the PPP for the Brazilian region has confirmed that the equatorial regions are more affected by the second and third order ionospheric effects than other regions.en
dc.description.affiliationUniv Estadual Paulista, Dept Cartog, BR-19060080 São Paulo, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Cartog, BR-19060080 São Paulo, Brazil
dc.format.extent619-625
dc.identifierhttp://dx.doi.org/10.1007/978-3-642-20338-1_76
dc.identifier.citationGeodesy For Planet Earth: Proceedings of The 2009 Iag Symposium. Berlin: Springer-verlag Berlin, v. 136, p. 619-625, 2012.
dc.identifier.doi10.1007/978-3-642-20338-1_76
dc.identifier.issn0939-9585
dc.identifier.lattes7180879644760038
dc.identifier.urihttp://hdl.handle.net/11449/6677
dc.identifier.wosWOS:000300433100076
dc.language.isoeng
dc.publisherSpringer-verlag Berlin
dc.relation.ispartofGeodesy For Planet Earth: Proceedings of The 2009 Iag Symposium
dc.relation.ispartofsjr0,403
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.titleSecond and Third Order Ionospheric Effects on GNSS Positioning: A Case Study in Brazilen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer-verlag Berlin
dspace.entity.typePublication
unesp.author.lattes7180879644760038
unesp.author.orcid0000-0003-4101-9261[2]
unesp.author.orcid0000-0002-2019-9198[4]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências e Tecnologia, Presidente Prudentept
unesp.departmentCartografia - FCTpt

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