Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares

Detalhes bibliográficos
Autor(a) principal: de Souza, Eniuce Menezes [UNESP]
Data de Publicação: 2009
Outros Autores: Monico, João Francisco Galera [UNESP], Pagamisse, Aylton [UNESP]
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/226566
Resumo: Multipath reduction from GPS signal has become essential for any highly precise applications. The high-frequency multipath from far surfaces, which causes the smaller errors, is easier to be mitigated. But the low-frequency multipath from near surfaces, which causes the major errors, is very difficult to be reduced or modeled, mainly in kinematic applications. A possible multipath reduction that has showed promising performance in static relative positioning is the Multiresolution Analysis (MRA) using wavelets. Thus, the aim of this paper is to investigate the possibility of extending this wavelet method to reduce multipath effects for kinematic applications. An experiment was carried out using objects placed close to the receiver antenna to cause, mainly, low-frequency multipath. The multipath effects impeded the reliable ambiguity resolution during the processed data period. With the multipath mitigation using the proposed method based on wavelets, ambiguities could be fixed with reliably in beginning of the processing and the coordinates became much more accurate. It was obtained up to 1.29 m of improvement on the resulting coordinates.
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spelling Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminaresMultipath reduction effect of the high and low frequency in static relative positioning by using wavelets: Preliminary resultsAmbiguitiesGps kinematic positioningMultipathWaveletMultipath reduction from GPS signal has become essential for any highly precise applications. The high-frequency multipath from far surfaces, which causes the smaller errors, is easier to be mitigated. But the low-frequency multipath from near surfaces, which causes the major errors, is very difficult to be reduced or modeled, mainly in kinematic applications. A possible multipath reduction that has showed promising performance in static relative positioning is the Multiresolution Analysis (MRA) using wavelets. Thus, the aim of this paper is to investigate the possibility of extending this wavelet method to reduce multipath effects for kinematic applications. An experiment was carried out using objects placed close to the receiver antenna to cause, mainly, low-frequency multipath. The multipath effects impeded the reliable ambiguity resolution during the processed data period. With the multipath mitigation using the proposed method based on wavelets, ambiguities could be fixed with reliably in beginning of the processing and the coordinates became much more accurate. It was obtained up to 1.29 m of improvement on the resulting coordinates.Departamento de Cartografia Universidade Estadual Paulista - Unesp Faculdade de Ciências e Tecnologia - FCT, Presidente Prudente - SPDepartamento de Matemática Universidade Estadual Paulista - Unesp Faculdade de Ciências e Tecnologia - FCT, Presidente Prudente - SPDepartamento de Cartografia Universidade Estadual Paulista - Unesp Faculdade de Ciências e Tecnologia - FCT, Presidente Prudente - SPDepartamento de Matemática Universidade Estadual Paulista - Unesp Faculdade de Ciências e Tecnologia - FCT, Presidente Prudente - SPUniversidade Estadual Paulista (UNESP)de Souza, Eniuce Menezes [UNESP]Monico, João Francisco Galera [UNESP]Pagamisse, Aylton [UNESP]2022-04-29T01:26:52Z2022-04-29T01:26:52Z2009-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article142-156Boletim de Ciencias Geodesicas, v. 15, n. 1, p. 142-156, 2009.1413-48531982-2170http://hdl.handle.net/11449/2265662-s2.0-80054695507Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengporBoletim de Ciencias Geodesicasinfo:eu-repo/semantics/openAccess2024-06-19T14:32:06Zoai:repositorio.unesp.br:11449/226566Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:48:20.216903Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
Multipath reduction effect of the high and low frequency in static relative positioning by using wavelets: Preliminary results
title Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
spellingShingle Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
de Souza, Eniuce Menezes [UNESP]
Ambiguities
Gps kinematic positioning
Multipath
Wavelet
title_short Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
title_full Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
title_fullStr Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
title_full_unstemmed Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
title_sort Redução do efeito do multicaminho de freqüências alta e baixa no posicionamento relativo cinemático utilizando wavelets: Resultados preliminares
author de Souza, Eniuce Menezes [UNESP]
author_facet de Souza, Eniuce Menezes [UNESP]
Monico, João Francisco Galera [UNESP]
Pagamisse, Aylton [UNESP]
author_role author
author2 Monico, João Francisco Galera [UNESP]
Pagamisse, Aylton [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv de Souza, Eniuce Menezes [UNESP]
Monico, João Francisco Galera [UNESP]
Pagamisse, Aylton [UNESP]
dc.subject.por.fl_str_mv Ambiguities
Gps kinematic positioning
Multipath
Wavelet
topic Ambiguities
Gps kinematic positioning
Multipath
Wavelet
description Multipath reduction from GPS signal has become essential for any highly precise applications. The high-frequency multipath from far surfaces, which causes the smaller errors, is easier to be mitigated. But the low-frequency multipath from near surfaces, which causes the major errors, is very difficult to be reduced or modeled, mainly in kinematic applications. A possible multipath reduction that has showed promising performance in static relative positioning is the Multiresolution Analysis (MRA) using wavelets. Thus, the aim of this paper is to investigate the possibility of extending this wavelet method to reduce multipath effects for kinematic applications. An experiment was carried out using objects placed close to the receiver antenna to cause, mainly, low-frequency multipath. The multipath effects impeded the reliable ambiguity resolution during the processed data period. With the multipath mitigation using the proposed method based on wavelets, ambiguities could be fixed with reliably in beginning of the processing and the coordinates became much more accurate. It was obtained up to 1.29 m of improvement on the resulting coordinates.
publishDate 2009
dc.date.none.fl_str_mv 2009-01-01
2022-04-29T01:26:52Z
2022-04-29T01:26:52Z
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. 1, p. 142-156, 2009.
1413-4853
1982-2170
http://hdl.handle.net/11449/226566
2-s2.0-80054695507
identifier_str_mv Boletim de Ciencias Geodesicas, v. 15, n. 1, p. 142-156, 2009.
1413-4853
1982-2170
2-s2.0-80054695507
url http://hdl.handle.net/11449/226566
dc.language.iso.fl_str_mv eng
por
language eng
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.format.none.fl_str_mv 142-156
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
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