Now showing items 1-8 of 8

    • A generic simulator for aperture synthesis radiometers: Radiative transfer module and end-to-end tests 

      Camps Carmona, Adriano José; Hyuk, Park; Barbosa, José; Bandeiras, J.; Sousa, Ana; d'Addio, Salvatore; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference lecture
      Restricted access - publisher's policy
      The Synthetic Aperture Interferometric Radiometer (SAIR) Performance Simulator (SAIRPS) is a very versatile software tool developed by Deimos Engenharia (Portugal) and the Universitat Politècnica de Catalunya-Barcelona ...
    • Comparison of GNSS-R processing techniques for spaceborne ocean altimetry 

      Martín Alemany, Francisco; d'Addio, Salvatore; Camps Carmona, Adriano José; Martín Neira, Manuel; Hyuk, Park; Pascual Biosca, Daniel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      Earth-reflected Global Navigation Satellite System (GNSS) have become an attractive tool to be employed in low-Earth-orbit spaceborne missions, for applications such as ocean mesoscale altimetry and scatterometry. For such ...
    • Cross-correlation waveform analysis for conventional and interferometric GNSS-R approaches 

      Martín Alemany, Francisco; Camps Carmona, Adriano José; Hyuk, Park; d'Addio, Salvatore; Martín Neira, Manuel; Pascual Biosca, Daniel (2014-05-01)
      Article
      Restricted access - publisher's policy
      Reflectometry using Global Navigation Satellite System (GNSS-R) signals has become an attractive tool for Earth remote sensing. Back to 1993, it was proposed as an alternative to the conventional spaceborne ocean altimetry ...
    • Impact of the elevation angle in the coherence time as a function of the sea wave height 

      Martín Alemany, Francisco; Camps Carmona, Adriano José; Martín-Neira, Manuel; d'Addio, Salvatore; Fabra Cervellera, Fran; Rius Jordán, Antonio; Hyuk, Park (2015)
      Conference lecture
      Restricted access - publisher's policy
      For a given geometry, the coherence time of a GNSS-R waveform can be initially related to the significant wave height.However, when the coherence time is analyzed, several issues shall be considered, such as the geometry ...
    • Microwave imaging radiometers by aperture synthesis performance simulator (part 2): instrument modeling, calibration, and image reconstruction algorithms 

      Camps Carmona, Adriano José; Hyuk, Park; Kang, Yujin; Bandeiras, J.; Barbosa, José; Vieira, Paula; Friaças, Ana; d'Addio, Salvatore (2016-05-12)
      Article
      Open Access
      The Synthetic Aperture Interferometric Radiometer Performance Simulator (SAIRPS) has been a three-year project sponsored by the European Space Agency (ESA) to develop a completely generic end-to-end performance simulator ...
    • Microwave imaging radiometers by aperture synthesis— performance simulator (part 1): radiative transfer module 

      Camps Carmona, Adriano José; Hyuk, Park; Bandeiras, J.; Barbosa, José; Sousa, Anna; d'Addio, Salvatore; Martin-Neira, Manuel (2016-05-11)
      Article
      Open Access
      The Synthetic Aperture Interferometric Radiometer Performance Simulator (SAIRPS) is a three-year project sponsored by the European Space Agency (ESA) to develop a completely generic end-to-end performance simulator of ...
    • Significant wave height retrieval based on the effective number of incoherent averages 

      Martín Alemany, Francisco; Camps Carmona, Adriano José; Martín-Neira, Manuel; d'Addio, Salvatore; Fabra, Fran; Rius Jordán, Antonio; Hyuk, Park (2015)
      Conference lecture
      Restricted access - publisher's policy
      The effectiveness of incoherent averaging depends on the level of correlation between consecutive waveforms, which can vary with the geometry and with the sea state conditions. In addition it is also dependent on the ...
    • Typhoon observations using the interferometric GNSS-R technique 

      Martín Alemany, Francisco; Camps Carmona, Adriano José; Hyuk, Park; Fabra Cervellera, Fran; Rius Jordán, Antonio; Martín Neira, Manuel; d'Addio, Salvatore; Li, Weiqiang; Yang, Dongkai (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Conference report
      Restricted access - publisher's policy
      Typhoon motoring using Global Navigation Satellite System (GNSS) signals is a new application of the GNSS-R technique, with increasing interest in the last years. Examples of that can be the CYGNSS (Cyclone Global Navigation ...