High-Rate Altimetry in SNR-Based GNSS-R: Proof-of-Concept of a Synthetic Vertical Array

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorYamawaki, M. K.-
Autor(es): dc.creatorGeremia-Nievinski, F.-
Autor(es): dc.creatorMonico, J. F.G.-
Data de aceite: dc.date.accessioned2022-08-04T22:09:34Z-
Data de disponibilização: dc.date.available2022-08-04T22:09:34Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1109/LGRS.2021.3068091-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/221718-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/221718-
Descrição: dc.descriptionGlobal Navigation Satellite System Reflectometry (GNSS-R) has emerged as a promising remote sensing technique for coastal sea level monitoring. GNSS-R based on signal-to-noise ratio (SNR) observations employs a single antenna and a conventional receiver. It performs best for low elevation satellites, where direct and reflected radio waves are very similar in polarization and direction of arrival. One of the disadvantages of SNR-based GNSS-R for sea level altimetry is its low temporal resolution, which is of the order of 1 h for each independent satellite pass. Here, we present a proof-of-concept based on a synthetic vertical array. It exploits the mechanical movement of a single antenna at a high rate (about 1 Hz). SNR observations can then be fit to a known modulation, of the order of the antenna sweeping rate. We demonstrate that centimetric altimetry precision can be achieved in a 5-min session.-
Descrição: dc.descriptionPostgraduate Program in Remote Sensing, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre 91509-900, Brazil (e-mail: kenji.yamawaki@ufrgs.br)-
Descrição: dc.descriptionDepartment of Geodesy and Postgraduate Program in Remote Sensing, Federal University of Rio Grande do Sul, Porto Alegre 91509-900, Brazil.-
Descrição: dc.descriptionDepartment of Cartography and Postgraduate Program in Cartographic Sciences, São Paulo State University, São Paulo 19060-900, Brazil.-
Idioma: dc.languageen-
Relação: dc.relationIEEE Geoscience and Remote Sensing Letters-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAltimetry-
Palavras-chave: dc.subjectAntennas-
Palavras-chave: dc.subjectGlobal navigation satellite system-
Palavras-chave: dc.subjectGlobal Navigation Satellite System (GNSS)-
Palavras-chave: dc.subjectGNSS reflectometry (GNSS-R).-
Palavras-chave: dc.subjectSatellite antennas-
Palavras-chave: dc.subjectSatellites-
Palavras-chave: dc.subjectSignal to noise ratio-
Palavras-chave: dc.subjectSurface waves-
Título: dc.titleHigh-Rate Altimetry in SNR-Based GNSS-R: Proof-of-Concept of a Synthetic Vertical Array-
Tipo de arquivo: dc.typelivro digital-
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