Now showing items 17-23 of 23

  • Retracking considerations in spaceborne GNSS-R altimetry 

    Hyuk, Park; Camps Carmona, Adriano José; Valencia Domènech, Enric; Rodríguez Álvarez, Nereida; Bosch Lluís, Xavier; Ramos Pérez, Isaac; Carrero Luengo, Hugo (2012-10)
    Article
    Restricted access - publisher's policy
    The European Space Agency Passive Reflectometry and Interferometry System In-orbit Demonstrator (IoD) aims to perform mesoscale altimetric observations by measuring the Global Navigation Satellite System (GNSS) opportunity ...
  • Review of GNSS-R instruments and tools developed at the Universitat Politecnica de Catalunya-Barcelona Tech 

    Camps Carmona, Adriano José; Marchán Hernández, Juan Fernando; Bosch Lluís, Xavier; Rodríguez Álvarez, Nereida; Ramos Pérez, Isaac; Valencia Domènech, Enric; Tarongí Bauzá, José Miguel; Hyuk, Park; Carreño Luengo, Hugo; Alonso Arroyo, Alberto; Pascual Biosca, Daniel; Onrubia Ibáñez, Raúl; Forte Veliz, Giuseppe Francesco; Querol Borràs, Jorge (2014)
    Conference lecture
    Restricted access - publisher's policy
    Reflectometry using Global Navigation Satellite System's signals of opportunity (GNSS-R) was originally conceived in the early 90s for mesoscale altimetry, and since then, many studies have shown its applicability to other ...
  • Snow monitoring using GNSS-R techniques 

    Rodríguez Álvarez, Nereida; Aguasca Solé, Alberto; Valencia Domènech, Enric; Bosch Lluís, Xavier; Ramos Pérez, Isaac; Hyuk, Park; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena (IEEE, 2011)
    Conference report
    Restricted access - publisher's policy
    GNSS-R techniques are currently being studied to remotely sense a number of geophysical parameters over different types of surfaces [1-6]. The Interference Pattern Technique (IPT) is based on the measurement of the ...
  • Study of maize plants effects in the retrieval of soil moisture using the interefence Ppttern GNSS-R technique 

    Rodríguez Álvarez, Nereida; Bosch Lluís, Xavier; Acevo Herrera, René; Aguasca Solé, Alberto; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Ramos Pérez, Isaac; Valencia Domènech, Enric (2010)
    Conference lecture
    Open Access
    The use of Global Navigation Satellite Signals Reflections (GNSS-R) techniques to retrieve geophysical parameters from surfaces has been increased in the recent years. These techniques have resulted in suitable tools to ...
  • El uso de señales de oportunidad GPS para observación de la Tierra 

    Camps, Adriano; Marchán-Hernández, Juan Fernando; Rodríguez Álvarez, Nereida; Bosch, Xavier; Valencia i Domènech, Enric; Ramos Pérez, Isaac (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2010)
    Article
    Open Access
  • 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)
    Conference report
    Restricted access - publisher's policy
    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.
  • Vegetation water content estimation using GNSS measurements 

    Rodríguez Álvarez, Nereida; Bosch Lluís, Xavier; Camps Carmona, Adriano José; Ramos Pérez, Isaac; Valencia Domènech, Enric; Hyuk, Park; Vall-Llossera Ferran, Mercedes Magdalena (2012-03)
    Article
    Restricted access - publisher's policy
    Global Navigation Satellite Systems (GNSS) opportunity signals reflected at or near the Earth's surface have already shown their potential to perform retrievals of a number of geophysical parameters. Radio occultations ...