Ara es mostren els items 49-68 de 216

    • Denormalization of visibilities for in-orbit calibration of interferometric radiometers 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Beraza Robledano, Santiago; Martín Neira, Manuel; Gutiérrez, C. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
      Article
      Accés obert
      This paper reviews the relative calibration of an interferometric radiometer taking into account the experimental results of the first batch of receivers developed in the frame of the European Space Agency's Soil Moisture ...
    • Denormalization of visibilities for in-orbit calibration of interferometric radiometers 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Beraza Robledano, Santiago; Gutiérrez, C.; Martín Neira, Manuel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-10-31)
      Article
      Accés obert
      This paper reviews the relative calibration of an interferometric radiometer taking into account the experimental results of the first batch of receivers developed in the frame of the European Space Agency's Soil Moisture ...
    • Deriving VTEC maps from SMOS radiometric data 

      Rubino, Roselena; Duffo Ubeda, Núria; González Gambau, Verónica; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Durán Martínez, Israel; Martín Neira, Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-01)
      Comunicació de congrés
      Accés obert
      In this work, a new methodology is proposed in order to derive vertical total electron content (VTEC) maps from the radiometric measurements of the Soil Moisture and Ocean Salinity (SMOS) mission as an alternative approach ...
    • Diseño de mezcladores armónicos para aplicaciones en lazos de fase PLO a 20 

      Porta, Albert; Artal, Eduardo; Corbella Sanahuja, Ignasi; Purroy, Francesc (1990)
      Text en actes de congrés
      Accés obert
    • Diseño de un PLO a 2.4 GHz con subsistemas no ideales 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi (1992)
      Text en actes de congrés
      Accés obert
      The design of a phase locked oscillator -PLO- using real components is presented. The procedure takes into account the main subsystem non-idealities: residual phase noise and high frequency parasitic behaviour of the ...
    • Downscaling SMOS-derived soil moisture using MODIS visible/infrared data 

      Piles, Maria; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Corbella Sanahuja, Ignasi; Panciera, Rocco; Ruediger, Christoph; Kerr, Yann H.; Walker, Jeffrey (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-09)
      Article
      Accés restringit per política de l'editorial
      A downscaling approach to improve the spatial resolution of Soil Moisture and Ocean Salinity (SMOS) soil moisture estimates with the use of higher resolution visible/infrared (VIS/IR) satellite data is presented. The ...
    • Dynamic range and linearity tradeoff in detectors for interferometric radiometers 

      Torres Torres, Francisco; Duffo Ubeda, Núria; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena (2003-12)
      Article
      Accés obert
      The dynamic range and error performance of the diode power detector used to denormalise the digital correlations in interferometric radiometers is analysed by means of a second-order model of the diode response. This ...
    • El "Olympus Propagation Experiment (OPEX)". Aspectos del cabezal de R.F. de las estaciones receptoras 

      Comerón Tejero, Adolfo; Bara, Javier; Elias Fusté, Antoni; Corbella Sanahuja, Ignasi; Artal, Eduardo (1985)
      Text en actes de congrés
      Accés obert
      The design guidelines for a coherent receiver for the Olympus propagation experiment at 12.5, 20 and 30 GHz are discussed. The receiver channels can be locked to a main PLL in the 12.5 GHz channel, thus decreasing the loss ...
    • End-to-end Simulator of 2-D Interferometric Radiometry 

      Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Zapata González, Miguel; Marcos, Fernando; Martínez, Francisco; Torres Torres, Francisco; Vall-Llossera Ferran, Mercedes Magdalena; Duffo Ubeda, Núria; Bará Temes, Francisco Javier (AMER GEOPHYSICAL UNION, 2003-07-31)
      Article
      Accés obert
      An end-to-end simulator for the assessment of the performances of a spaceborne interferometric radiometer measuring the brightness temperature of Earth’s surface (ground and sea) is presented. The tool covers the complete ...
    • Evaluation of MIRAS space borne instrument performance: snap shot radiometric accuracy and its improvement by means of pixel averaging 

      Camps Carmona, Adriano José; Torres Torres, Francisco; Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Martín Neira, Manuel (1997)
      Text en actes de congrés
      Accés obert
    • Exact representation of antenna system diversity performance from input parameter description 

      Blanch Boris, Sebastián; Romeu Robert, Jordi; Corbella Sanahuja, Ignasi (2003-05-31)
      Article
      Accés obert
      A simplc formulation Io compute thc envelope correlation of an antenna divemiry system is dcrired. 11 is shown how to compute the envelope correlation hom the S-parameter descnplian of the antenna system. This approach ...
    • Examen Final 

      Aguasca Solé, Alberto; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Mateu, J.; O'Callaghan Castellà, Juan Manuel; Pradell i Cara, Lluís (Universitat Politècnica de Catalunya, 2015-03-23)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Vall-Llossera Ferran, Mercedes Magdalena; Torres Torres, Francisco; López, C.; Corbella Sanahuja, Ignasi; Fàbregas Bargalló, Xavier (Universitat Politècnica de Catalunya, 2017-01-13)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi; Fabregas Canovas, Francisco Javier; López Martínez, Carlos; Vall-Llossera Ferran, Mercedes Magdalena (Universitat Politècnica de Catalunya, 2021-01-23)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Aguasca Solé, Alberto; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Mateu, J.; O'Callaghan Castellà, Juan Manuel; Pradell i Cara, Lluís; Torres Torres, Francisco (Universitat Politècnica de Catalunya, 2014-01-10)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Corbella Sanahuja, Ignasi; López Martínez, Carlos; Mallorquí Franquet, Jordi Joan; Vall-Llossera Ferran, Mercedes Magdalena (Universitat Politècnica de Catalunya, 2020-06-09)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Corbella Sanahuja, Ignasi; Fàbregas Bargalló, Xavier; Lopez, C.; Perez, J.; Torres Torres, Francisco (Universitat Politècnica de Catalunya, 2014-01-13)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Torres Torres, Francisco; López, C.; Fàbregas Bargalló, Xavier; Corbella Sanahuja, Ignasi; Vall-Llossera Ferran, Mercedes Magdalena (Universitat Politècnica de Catalunya, 2015-01-19)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Aguasca Solé, Alberto; Corbella Sanahuja, Ignasi (Universitat Politècnica de Catalunya, 2013-06-10)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Corbella Sanahuja, Ignasi; Fàbregas Bargalló, Xavier; López, C; Torres Torres, Francisco; Vall-Llossera Ferran, Mercedes Magdalena (Universitat Politècnica de Catalunya, 2016-06-08)
      Examen
      Accés restringit a la comunitat UPC