Initial results of typhoon wind speed observation using coastal GNSS-R of BeiDou GEO satellite

Sea surface-reflected signals of global navigation satellite system (GNSS) were collected during a coastal experiment to evaluate the potential use of these signals on typhoon investigation. This work focuses on processing the signals from BeiDou geostationary Earth orbit (GEO) satellites and assess...

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Detalles Bibliográficos
Autores: Li, Weiqiang, Fabra Cervellera, Fran, Yang, Dongkai, Rius, Antonio, Martín-Neira, Manuel, Yin, Cong, Wang, Qiang, Cao, Yunchang
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/377620
Acceso en línea:http://hdl.handle.net/10261/377620
https://api.elsevier.com/content/abstract/scopus_id/84959378140
Access Level:acceso abierto
Palabra clave:BeiDou navigation satellite system (BDS)
Geostationary earth orbit (GEO)
Global navigation satellite system reflectometry (GNSS-R)
Scatterometry
Tropical cyclone
Descripción
Sumario:Sea surface-reflected signals of global navigation satellite system (GNSS) were collected during a coastal experiment to evaluate the potential use of these signals on typhoon investigation. This work focuses on processing the signals from BeiDou geostationary Earth orbit (GEO) satellites and assessing the sensitivities of waveform observables to the wind speed evolution during the typhoons. After the processing of the raw samples, both the delay-and spectral-related observables are obtained from the complex waveforms and then compared with in situ wind measurement collected during two tropical cyclones. Results from the data analysis are presented, confirming that the proposed observables are well correlated with the wind speed evolution and suitable for coastal wind speed retrieval.