Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/231892 |
Resumo: | Brazil follows the tendency of some countries to update and/or review their fundamental geodetic network. The adoption of geocentric referentials like SIRGAS 2000, the new official reference system of the Geodetic Brazilian System has been an advance. Changes in referential implies in coordinates changes on the network stations as well as the network geometry. To make use of analogical and digital products which are already known in the old referentials are necessary approaches to the coordinate conversion, which minimize the distortions between the used reference frames. This paper presents a distortion modeling approach between reference frames, based on distortion grid generation by using the Shepard's method. To analyze the approach some experiments were performed with the generation of a 1°×1° distortion grid to model the distortions between SAD 69 (1996) and SIRGAS (2000) frames. The results in the test stations were promising, with an average reduction of 50% in the RMS coordinates after the distortions modeling. |
id |
UNSP_26638d596f5e2710a38b60bdcb0f092c |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/231892 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regularesDistortion modeling between SAD 69 and SIRGAS 2000 based on Shepard method and regular gridsDistortion modelingReference systemsShepard's interpolatorBrazil follows the tendency of some countries to update and/or review their fundamental geodetic network. The adoption of geocentric referentials like SIRGAS 2000, the new official reference system of the Geodetic Brazilian System has been an advance. Changes in referential implies in coordinates changes on the network stations as well as the network geometry. To make use of analogical and digital products which are already known in the old referentials are necessary approaches to the coordinate conversion, which minimize the distortions between the used reference frames. This paper presents a distortion modeling approach between reference frames, based on distortion grid generation by using the Shepard's method. To analyze the approach some experiments were performed with the generation of a 1°×1° distortion grid to model the distortions between SAD 69 (1996) and SIRGAS (2000) frames. The results in the test stations were promising, with an average reduction of 50% in the RMS coordinates after the distortions modeling.FCT/UNESP, Rua Roberto Simonsen, 305, CEP: 19060-900, Presidente Prudente-SPFCT/UNESP, Rua Roberto Simonsen, 305, CEP: 19060-900, Presidente Prudente-SPUniversidade Estadual Paulista (UNESP)Magna Júnior, João Paulo [UNESP]Camargo, Paulo de Oliveira [UNESP]Galo, Maurício [UNESP]2022-04-29T08:47:56Z2022-04-29T08:47:56Z2009-10-21info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBoletim de Ciencias Geodesicas, v. 15, n. 3, 2009.1413-4853http://hdl.handle.net/11449/2318922-s2.0-70350006982Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBoletim de Ciencias Geodesicasinfo:eu-repo/semantics/openAccess2024-06-18T15:01:11Zoai:repositorio.unesp.br:11449/231892Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:00:18.534029Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares Distortion modeling between SAD 69 and SIRGAS 2000 based on Shepard method and regular grids |
title |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares |
spellingShingle |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares Magna Júnior, João Paulo [UNESP] Distortion modeling Reference systems Shepard's interpolator |
title_short |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares |
title_full |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares |
title_fullStr |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares |
title_full_unstemmed |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares |
title_sort |
Modelagem de distorções entre sad 69 e sirgas 2000 pelo método de shepard e grades regulares |
author |
Magna Júnior, João Paulo [UNESP] |
author_facet |
Magna Júnior, João Paulo [UNESP] Camargo, Paulo de Oliveira [UNESP] Galo, Maurício [UNESP] |
author_role |
author |
author2 |
Camargo, Paulo de Oliveira [UNESP] Galo, Maurício [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Magna Júnior, João Paulo [UNESP] Camargo, Paulo de Oliveira [UNESP] Galo, Maurício [UNESP] |
dc.subject.por.fl_str_mv |
Distortion modeling Reference systems Shepard's interpolator |
topic |
Distortion modeling Reference systems Shepard's interpolator |
description |
Brazil follows the tendency of some countries to update and/or review their fundamental geodetic network. The adoption of geocentric referentials like SIRGAS 2000, the new official reference system of the Geodetic Brazilian System has been an advance. Changes in referential implies in coordinates changes on the network stations as well as the network geometry. To make use of analogical and digital products which are already known in the old referentials are necessary approaches to the coordinate conversion, which minimize the distortions between the used reference frames. This paper presents a distortion modeling approach between reference frames, based on distortion grid generation by using the Shepard's method. To analyze the approach some experiments were performed with the generation of a 1°×1° distortion grid to model the distortions between SAD 69 (1996) and SIRGAS (2000) frames. The results in the test stations were promising, with an average reduction of 50% in the RMS coordinates after the distortions modeling. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-10-21 2022-04-29T08:47:56Z 2022-04-29T08:47:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Boletim de Ciencias Geodesicas, v. 15, n. 3, 2009. 1413-4853 http://hdl.handle.net/11449/231892 2-s2.0-70350006982 |
identifier_str_mv |
Boletim de Ciencias Geodesicas, v. 15, n. 3, 2009. 1413-4853 2-s2.0-70350006982 |
url |
http://hdl.handle.net/11449/231892 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Boletim de Ciencias Geodesicas |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128591566733312 |