Now showing items 1-5 of 5

  • Advances in calibration of the SMOS zero-baseline radiometers 

    Colliander, Andreas; Chae, Chunsik; Dinnat, Emmanuel Philippe; Oliva, Roger; Kainulainen, Juha; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Over the course of the more than four-year mission several enhancements have been developed for the calibration of the zero-baseline radiometers of ESA's SMOS (Soil Moisture Ocean Salinity) mission. Here a particular ...
  • Analysis of Correlation and Total Power Radiometer Front-Ends Using Noise Waves 

    Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Rautiainen, Kimmo; Martín Neira, Manuel; Colliander, Andreas (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-11-30)
    Article
    Open Access
    A complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in ...
  • Analysis of correlation and total power radiometer front-ends using noise waves 

    Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Rautiainen, Kimmo; Martín Neira, Manuel; Colliander, Andreas (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-11-30)
    Article
    Open Access
    A complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in ...
  • Correlation denormalization in interferometric or polarametric radiometers: a unified approach 

    Colliander, Andreas; Torres Torres, Francisco; Corbella Sanahuja, Ignasi (IEEE, 2009-02)
    Article
    Open Access
    This paper presents a general analysis of correlation measurements in an interferometer or a radiometer based on noise injection and/or switching and measurement of normalized correlations (e.g., imaging synthetic aperture ...
  • MIRAS End-to-End Calibration: Application to SMOS L1 Processor 

    Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Colliander, Andreas; Martín Neira, Manuel; Ribó i Vedrilla, Serni; Rautiainen, Kimmo; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-05-31)
    Article
    Open Access
    End-to-end calibration of the Microwave Imaging Radiometer by Aperture Synthesis (MIRAS) radiometer refers to processing the measured raw data up to dual-polarization brightness temperature maps over the earth's surface, ...