Ara es mostren els items 21-40 de 127

    • 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 ...
    • Design of single shaped reflector antennas for synthesis of shaped contour beams using genetic algorithms 

      Vall-Llossera Ferran, Mercedes Magdalena; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; Cardama Aznar, Ángel (2000-12)
      Article
      Accés restringit per política de l'editorial
      A genetic algorithm (GA) has been developed for designing single-shaped reflector antennas for the synthesis of shaped contour beams. The graphical processing technique is used in order to obtain the antenna radiation ...
    • Design of single shaped reflector antennas for synthesis of shaped contour beams using genetic algorithms 

      Vall-Llossera Ferran, Mercedes Magdalena; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; Cardama Aznar, Ángel (JOHN WILEY & SONS INC, 2000-12-31)
      Article
      Accés obert
      A genetic algorithm (GA) has been developed for designing single-shaped reflector antennas for the synthesis of shaped contour beams. The graphical processing technique is used in order to obtain the antenna radiation ...
    • Design of single shaped reflector antennas with a single feed applying genetic algorithms and graphical processing techniques 

      Vall-Llossera Ferran, Mercedes Magdalena; Rius Casals, Juan Manuel; García, M; Duffo Ubeda, Núria (SEE, 1998)
      Text en actes de congrés
      Accés obert
      A genetic algorithm GA has been de ( ) eloped for designing single-shaped reflector antennas for the synthesis of shaped contour beams. The graphical processing technique is used in order to obtain the antenna radiation ...
    • Difraccion y radiacion electromagnetica de estructuras microstrip finitas mediante el metodo de los elementos de contorno 

      Luis, P; Duffo Ubeda, Núria; Cruellas Ibarz, Juan Carlos (Universidad de Valladolid, 1995)
      Text en actes de congrés
      Accés obert
    • 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 ...
    • 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 ...
    • Examen de reavaluació 

      Duffo Ubeda, Núria; García Mateos, Jorge; Martí Espelt, Aniol; Mas Casals, Orestes Miquel (Universitat Politècnica de Catalunya, 2023-06-29)
      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 (Universitat Politècnica de Catalunya, 2015-03-23)
      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 

      Duffo Ubeda, Núria; Pradell i Cara, Lluís (Universitat Politècnica de Catalunya, 2019-01-18)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Duffo Ubeda, Núria; Pradell i Cara, Lluís (Universitat Politècnica de Catalunya, 2017-06-06)
      Examen
      Accés restringit a la comunitat UPC
    • EXAMEN FINAL 

      Duffo Ubeda, Núria; Mas Casals, Orestes Miquel; García Mateos, Jorge (Universitat Politècnica de Catalunya, 2022-06-10)
      Examen
      Accés restringit a la comunitat UPC
    • Examen final 

      Duffo Ubeda, Núria; García Mateos, Jorge; Mas Casals, Orestes Miquel; Muñoz Medina, Olga (Universitat Politècnica de Catalunya, 2019-06-11)
      Examen
      Accés restringit a la comunitat UPC
    • Examen final 

      Aguasca Solé, Alberto; Duffo Ubeda, Núria; Mas Casals, Orestes Miquel (Universitat Politècnica de Catalunya, 2021-06-15)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Duffo Ubeda, Núria; Pradell i Cara, Lluís (Universitat Politècnica de Catalunya, 2019-06-13)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Pradell i Cara, Lluís; Duffo Ubeda, Núria (Universitat Politècnica de Catalunya, 2018-06-18)
      Examen
      Accés restringit a la comunitat UPC
    • Examen Final 

      Duffo Ubeda, Núria; Pradell i Cara, Lluís (Universitat Politècnica de Catalunya, 2020-01-08)
      Examen
      Accés restringit a la comunitat UPC