Now showing items 21-25 of 25

    • SMOS simplified iterative full-pol brightness temperature retrieval 

      Durán Martínez, Israel; Lin, Wu; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Restricted access - publisher's policy
      SMOS is the acronym for the Soil Moisture and Ocean Salinity mission by the European Space Agency (ESA) [1]. Its single payload, the Microwave Imaging Radiometer using Aperture Synthesis (MIRAS), was successfully launched ...
    • Spatial biases analysis and mitigation methods in SMOS images 

      Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Wu, Lin; Duffo Ubeda, Núria; Durán Martínez, Israel; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference report
      Restricted access - publisher's policy
      SMOS brightness temperature images show some residual artifacts as a function of spatial directions. Due to having different antenna patterns in each element, even if knowing them perfectly, a minimum reconstruction error ...
    • Technology developments for an advanced L-band radiometer mission 

      Martín Neira, Manuel; Catalán Artigas, Albert; Corbella Sanahuja, Ignasi; Durán Martínez, Israel; Duffo Ubeda, Núria (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference lecture
      Open Access
      ESA’s Soil Moisture and Ocean Salinity (SMOS) mission was launched 2 Nov 2009 and, to date, is still in good health, providing valuable L-band observations of the Earth surface [1]. A number of products are obtained from ...
    • The MIRAS “all-licef” calibration mode 

      Corbella Sanahuja, Ignasi; González Gambau, V.; Torres Torres, Francisco; Duffo Ubeda, Núria; Durán Martínez, Israel; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Conference report
      Open Access
      Since each of the individual elements of the MIRAS array is a total power radiometer, the zero-spacing visibility can be obtained by the average of all the corresponding antenna temperatures. The main advantage of this ...
    • Wide field of view microwave interferometric radiometer imaging 

      Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Durán Martínez, Israel; González Gambau, Verónica; Martín Neira, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2019-03-02)
      Article
      Open Access
      In microwave interferometric radiometers with a large field of view, as for example the Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) onboard the Soil Moisture and Ocean Salinity (SMOS) satellite, one of the ...