GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning
Main Author: | |
---|---|
Publication Date: | 2002 |
Other Authors: | |
Format: | Article |
Language: | por |
Source: | Repositório Institucional da UNESP |
Download full: | http://dx.doi.org/10.22456/1807-9806.19608 http://hdl.handle.net/11449/249986 |
Summary: | Centimeter 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. |
id |
UNSP_8589dfc4c92357f7da34badf1d207c05 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/249986 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioningUtilização do Software GPSeq na Solução Rápida das Ambigüidades GPS no Posicionamento Relativo Cinemático de Bases Curtasfast GPS ambiguity resolutionquality controlrelative kinematic positioningCentimeter 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.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista, Caixa Postal 467, SPUniversidade Estadual Paulista, Caixa Postal 467, SPFAPESP: 1995/08775-1Universidade Estadual Paulista (UNESP)Machado, Wagner Carrupt [UNESP]Monico, João Francisco Galera [UNESP]2023-07-29T16:14:40Z2023-07-29T16:14:40Z2002-12-31info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article89-99http://dx.doi.org/10.22456/1807-9806.19608Pesquisas em Geociencias, v. 29, n. 2, p. 89-99, 2002.1807-98061518-2398http://hdl.handle.net/11449/24998610.22456/1807-9806.196082-s2.0-85160234610Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporPesquisas em Geocienciasinfo:eu-repo/semantics/openAccess2023-07-29T16:14:40Zoai:repositorio.unesp.br:11449/249986Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T16:14:40Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning Utilização do Software GPSeq na Solução Rápida das Ambigüidades GPS no Posicionamento Relativo Cinemático de Bases Curtas |
title |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning |
spellingShingle |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning Machado, Wagner Carrupt [UNESP] fast GPS ambiguity resolution quality control relative kinematic positioning |
title_short |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning |
title_full |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning |
title_fullStr |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning |
title_full_unstemmed |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning |
title_sort |
GPSeq software for fast GPS ambiguities resolution on short baselines using kinematic relative positioning |
author |
Machado, Wagner Carrupt [UNESP] |
author_facet |
Machado, Wagner Carrupt [UNESP] Monico, João Francisco Galera [UNESP] |
author_role |
author |
author2 |
Monico, João Francisco Galera [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Machado, Wagner Carrupt [UNESP] Monico, João Francisco Galera [UNESP] |
dc.subject.por.fl_str_mv |
fast GPS ambiguity resolution quality control relative kinematic positioning |
topic |
fast GPS ambiguity resolution quality control relative kinematic positioning |
description |
Centimeter 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. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-12-31 2023-07-29T16:14:40Z 2023-07-29T16:14:40Z |
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 |
http://dx.doi.org/10.22456/1807-9806.19608 Pesquisas em Geociencias, v. 29, n. 2, p. 89-99, 2002. 1807-9806 1518-2398 http://hdl.handle.net/11449/249986 10.22456/1807-9806.19608 2-s2.0-85160234610 |
url |
http://dx.doi.org/10.22456/1807-9806.19608 http://hdl.handle.net/11449/249986 |
identifier_str_mv |
Pesquisas em Geociencias, v. 29, n. 2, p. 89-99, 2002. 1807-9806 1518-2398 10.22456/1807-9806.19608 2-s2.0-85160234610 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Pesquisas em Geociencias |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
89-99 |
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_ |
1797789516028706816 |