GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning

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dc.contributor.authorMachado, Wagner Carrupt [UNESP]
dc.contributor.authorMonico, João Francisco Galera [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T16:14:40Z
dc.date.available2023-07-29T16:14:40Z
dc.date.issued2002-12-31
dc.description.abstractCentimeter level GPS positioning is based on the very precise carrier beat phase measurements. However, this observable is ambiguous by a number of whole cycles between the satellite and receiver antenna at the first epoch of data collecting, which is called the ambiguity. GPS ambiguities are introduced as parameters to be estimated in the observation equations. However, since they are integer numbers there is no standard techniques for solve them. One of the ways is to apply sequential conditional least-squares estimation together with integer search techniques. The ambiguity resolution can be divided in two steps: estimation and validation. The estimation is concerned with the computation of the ambiguities values. The validation step is used to infer if the estimated value can be accepted or not. From the last decade until nowadays ambiguity resolution has been one of the most important research topic in geodetic positioning and a several methods have been proposed. Special attention has been made about the fast ambiguity resolution. The aim of this paper is to investigate the ambiguity resolution in the context of relative kinematic positioning and its implementation in the GPSeq software, which is a GPS data processing software developed in academic environment. In this paper some experiments about kinematic processing are presented, whose results shown that the GPSeq solution is compatible on the centimeter level with Reliance software. The results also shown an inefficiency of the ratio and the difference between the quadratic form of the residuals of the second best and best solution tests in validating the ambiguity resolution in time limits of solution of the baselines processed.en
dc.description.affiliationUniversidade Estadual Paulista, Caixa Postal 467, SP
dc.description.affiliationUnespUniversidade Estadual Paulista, Caixa Postal 467, SP
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 1995/08775-1
dc.format.extent89-99
dc.identifierhttp://dx.doi.org/10.22456/1807-9806.19608
dc.identifier.citationPesquisas em Geociencias, v. 29, n. 2, p. 89-99, 2002.
dc.identifier.doi10.22456/1807-9806.19608
dc.identifier.issn1807-9806
dc.identifier.issn1518-2398
dc.identifier.scopus2-s2.0-85160234610
dc.identifier.urihttp://hdl.handle.net/11449/249986
dc.language.isopor
dc.relation.ispartofPesquisas em Geociencias
dc.sourceScopus
dc.subjectfast GPS ambiguity resolution
dc.subjectquality control
dc.subjectrelative kinematic positioning
dc.titleGPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioningen
dc.titleUtilização do Software GPSeq na Solução Rápida das Ambigüidades GPS no Posicionamento Relativo Cinemático de Bases Curtaspt
dc.typeArtigo
unesp.departmentCartografia - FCTpt

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Presidente Prudente - FCT - Faculdade de Ciências e Tecnologia