Ara es mostren els items 4-10 de 10

    • Network-based ionospheric gradient monitoring to support GBAS 

      Caamaño Albuerne, María; Juan Zornoza, José Miguel; Felux, Michael; Gerbeth, Daniel; González Casado, Guillermo; Sanz Subirana, Jaume (2021-02-11)
      Article
      Accés obert
      Large ionospheric gradients acting between a Ground Based Augmentation System (GBAS) reference station and an aircraft on approach could lead to hazardous position errors if undetected. Current GBAS stations provide solutions ...
    • PAU instrument aboard INTA MicroSat-1: A GNSS-R demonstration mission for sea state correction in L-band radiometry 

      Rius, Antonio; Angulo, Manuel; Chavero, Sergio; Martinez, Pedro; Galindo, Juan Jose; Mollfulleda, Antonio; Camps Carmona, Adriano José; Marchán Hernández, Juan Fernando; Valencia Domènech, Enric; Ramos Pérez, Isaac; Bosch Lluís, Xavier; Rodríguez Álvarez, Nereida; Hyuk, Park; Alcayde Egea, Antonio (IEEE, 2011)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Global Navigation Satellite System (GNSS) Reflectometry was originally proposed for mesoscale altimetry, but today its feasibility for sea state, soil moisture, vegetation and snow height has already been demonstrated. ...
    • PAU instrument aboard INTA MicroSat-1: flight model tests 

      Alonso González, Alberto; Camps Carmona, Adriano José; Pascual Biosca, Daniel; Hyuk, Park; Alcayde Egea, Antonio; Chavero, Sergio; Martinez, Pedro; Crespo, Luis; Angulo, Manuel; Rius, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the PAU instrument aboard the satellite INTA MicroSAT-1. The PAU instrument is a combination of a Radiometer and a GNSS Reflectometer designed to study the relationship GNSS-R observables (Delay Doppler ...
    • PAU instrument aboard INTA MicroSAT-1: initial results of the FM model from an airborne experiment 

      Alonso Arroyo, Alberto; Camps Carmona, Adriano José; Pascual Biosca, Daniel; Hyuk, Park; Alcayde Egea, Antonio; Chavero, Sergio; Martinez, Pedro; Crespo, Luis; Angulo, Manuel; Rius, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the PAU instrument aboard the satellite INTA MicroSAT-1. The PAU instrument is a combination of a Radiometer and a GNSS Reflectometer designed to study the relationship GNSS-R observables (Delay Doppler ...
    • Preliminary NeQuick assessment for future single frequency users of GALILEO 

      Aragón Ángel, María Ángeles; Orús Pérez, Raül; Hernández Pajares, Manuel; Juan Zornoza, José Miguel; Sanz Subirana, Jaume (2005)
      Text en actes de congrés
      Accés obert
      The NeQuick model is the ionospheric mo del that will be used by the GALILEO single frequency user to compute ionospheric corrections. In this framework, the aim of this study is to show a preliminary assessment of the ...
    • Software prototype for the Galileo ionospheric correction model: progress report 

      Aragón Ángel, María Ángeles; Zürn, M. (2016-11-15)
      Report de recerca
      Accés obert
      The document describing the particular ionospheric model developed for the Galileo satellite navigation system has been officially released [1]. Its publication allows GNSS receiver manufacturers to start the implementation ...
    • Validation and experimental tests of the PAU-synthetic aperture radiometer 

      Ramos Pérez, Isaac; Forte Veliz, Giuseppe Francesco; Camps Carmona, Adriano José; Bosch Lluís, Xavier; Rodríguez Álvarez, Nereida; Valencia Domènech, Enric; Hyuk, Park; Vall-Llossera Ferran, Mercedes Magdalena (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents calibration and the radiometric performance of the Passive Advanced Unit Synthetic Aperture (PAU-SA) in order to verify the instrument's characterization.