Transformação de coordenadas com modelagem de distorções entre SAD69 e SIRGAS2000 com o uso de Thin-Plate Splines

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMagna Junior, Joao Paulo
dc.creatorCamargo, Paulo de Oliveira
dc.creatorGalo, Mauricio
dc.date2014-12-03T13:11:38Z
dc.date2016-10-25T20:14:42Z
dc.date2014-12-03T13:11:38Z
dc.date2016-10-25T20:14:42Z
dc.date2014-01-01
dc.date.accessioned2017-04-06T06:32:40Z
dc.date.available2017-04-06T06:32:40Z
dc.identifierBoletim De Ciencias Geodesicas. Curitiba Pr: Univ Federal Parana, Centro Politecnico, v. 20, n. 1, p. 19-38, 2014.
dc.identifier1982-2170
dc.identifierhttp://hdl.handle.net/11449/113364
dc.identifierhttp://acervodigital.unesp.br/handle/11449/113364
dc.identifier10.1590/S1982-21702014000100002
dc.identifierS1982-21702014000100002
dc.identifierWOS:000333326500002
dc.identifierS1982-21702014000100002.pdf
dc.identifier0000-0002-0104-9960
dc.identifierhttp://dx.doi.org/10.1590/S1982-21702014000100002
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/924106
dc.descriptionSeveral countries have been passed by change processes in their fundamental geodesic structure with the focus on the adoption of geocentric reference systems. In Brazil, the adoption of the SIRGAS2000 evolves the coexistence of two realizations from the COrrego Alegre system, two realizations from the SAD69 system and one realization from the SIRGAS2000 system. To make use of products in the old reference systems, methods of coordinate transformation between the existent reference frames are necessary. So, in this paper one solution for the transformation between coordinates from different reference frames, based on Thin-Plate Splines (TPS), that allows the estimation of parameters from one linear transformation and also one non-linear model is presented. The TPS model was developed to work with tridimensional coordinates and in this paper the results and analysis are performed with simulated data and also with data from the official Brazilian Geodetic System (SGB). In the check points from SAD69 stations (realization of 1996 - SAD69/96), the values of RMSE obtained were of 78,2 mm in latitude and 67,5 mm in longitude, before the transformation to the SIRGAS2000. In the comparison between the TPS model and ProGriD (Brazilian software provided by IBGE), the statistical indicators were reduced in 97%, by using the TPS model. Based in the obtained results from real dataset, the TPS model appears to be promising, since it allows improving the quality of transformation process with simultaneous distortion modeling.
dc.languagepor
dc.publisherUniv Federal Parana, Centro Politecnico
dc.relationBoletim de Ciências Geodésicas
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectThin-Plate Splines
dc.subjectDistortion Modeling
dc.subjectCoordinate Transformation
dc.subjectReference Systems
dc.titleTransformação de coordenadas com modelagem de distorções entre SAD69 e SIRGAS2000 com o uso de Thin-Plate Splines
dc.typeOtro


Este ítem pertenece a la siguiente institución