Postprocessing synchronization of a laser scanning system aboard a UAV

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorGeodesy and Cartography Division (GGC)-
Autor(es): dc.creatorMachado, Marcela Do Valle [UNESP]-
Autor(es): dc.creatorTommaselli, Antonio Maria Garcia [UNESP]-
Autor(es): dc.creatorTorres, Fernanda Magri [UNESP]-
Autor(es): dc.creatorCampos, Mariana Batista [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:27:47Z-
Data de disponibilização: dc.date.available2022-02-22T00:27:47Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2019-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.14358/PERS.85.10.753-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/199592-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/199592-
Descrição: dc.descriptionSynchronization of airborne laser scanning devices is a critical process that directly affects data accuracy. This process can be more challenging with low-cost airborne laser scanning (ALS) systems because some device connections from off-the-shelf sensors are less stable. An alternative to synchronization is performing a postprocessing clock correction. This article presents a technique for postprocessing synchronization (off-line) that estimates clock differences based on the correlation between the signals from the global navigation satellite system (GNSS) trajectory and the light detection and ranging (lidar) range, followed by refinement with a least-squares method. The correlation between signals was automatically estimated considering the planned flight maneuvers, in a flat terrain, to produce altimetric trajectory variations. Experiments were performed with an Ibeo LUX laser unit integrated with a No-vAtel SPAN-IGM-S1 inertial navigation system that was transported by an unmanned aerial vehicle (UAV). The planimetric and altimetric accuracies of the point cloud obtained with the proposed postprocessing synchronization technique were 28 cm and 10 cm, respectively, at a flight height of 35 m.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Technology and Sciences Department of Cartography-
Descrição: dc.descriptionBrazilian Institute of Geography and Statistics (IBGE) Geodesy and Cartography Division (GGC)-
Descrição: dc.descriptionSão Paulo State University (UNESP) School of Technology and Sciences Department of Cartography-
Descrição: dc.descriptionCAPES: 1481339-
Descrição: dc.descriptionCNPq: 155739/2018-2-
Descrição: dc.descriptionCAPES: 1774533-
Descrição: dc.descriptionFAPESP: 2013/50426-4-
Formato: dc.format753-763-
Idioma: dc.languageen-
Relação: dc.relationPhotogrammetric Engineering and Remote Sensing-
???dc.source???: dc.sourceScopus-
Título: dc.titlePostprocessing synchronization of a laser scanning system aboard a UAV-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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