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Ara es mostren els items 139-158 de 206

    • Radiació i propagació. Fulls de resposta laboratori 

      Corbella Sanahuja, Ignasi; Fabregas Canovas, Francisco Javier; Torres Torres, Francisco; Vall-Llossera Ferran, Mercedes Magdalena (2013-07-09)
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    • Radiació i propagació. Pràctiques de laboratori 

      Corbella Sanahuja, Ignasi; Fabregas Canovas, Francisco Javier; Torres Torres, Francisco; Vall-Llossera Ferran, Mercedes Magdalena (2013-07-03)
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    • Radiación y propagación (RP): colección de problemas 

      Corbella Sanahuja, Ignasi; Fabregas Canovas, Francisco Javier; Torres Torres, Francisco; Vall-Llossera Ferran, Mercedes Magdalena (2013-09-02)
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    • Radiation and Propagation (RP-2B). Exercises. October 2013 

      Corbella Sanahuja, Ignasi; Fabregas Canovas, Francisco Javier; Torres Torres, Francisco; Vall-Llossera Ferran, Mercedes Magdalena (2013-10-07)
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    • Radiation and Propagation: Test on Linear Circuits (English) 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Fabregas Canovas, Francisco Javier; López Martínez, Carlos (2014-01-07)
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    • Radiometric and spatial resolution constraints in millimeter-mave close-range passive screener systems 

      Nova, Enrique; Romeu Robert, Jordi; Torres Torres, Francisco; Pablos Hernández, Miriam; Riera, Jose Manuel; Broquetas Ibars, Antoni; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2013-04)
      Article
      Accés restringit per política de l'editorial
      This paper presents a comparative study of the radiometric sensitivity and spatial resolution of three near-field (NF) passive screener systems: real aperture, 1-D synthetic aperture (SA), and 2-D SA radiometers are compared. ...

    • Radiometric performance of SMOS full polarimetric imaging 

      Wu, Lin; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Durán Martínez, Israel; Vall-Llossera Ferran, Mercedes Magdalena; Camps, Adiano; Delwart, Steven; Martín Neira, Manuel (2013-11)
      Article
      Accés restringit per política de l'editorial
      This work has been conducted in the framework of several projects devoted to assess the performance of the Soil Moisture and Ocean Salinity (SMOS) mission full-pol measurement mode. Since its launch in November 2009, SMOS ...

    • Radiometric sensitivity computation in aperture synthesis interferometric radiometry 

      Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Torres Torres, Francisco (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-03-01)
      Article
      Accés obert
      This paper is concerned with the radiometric sensitivity computation of an aperture synthesis interferometric radiometer devoted to Earth observation. The impact of system parameters and the use of simultaneous redundant ...

    • Radiometric Sensitivity Computation in Aperture Synthesis Interferometric Radiometry 

      Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Torres Torres, Francisco (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-03-31)
      Article
      Accés obert
      This paper is concerned with the radiometric sensitivity computation of an aperture synthesis interferometric radiometer devoted to Earth observation. The impact of system parameters and the use of simultaneous redundant ...

    • Radiometric sensitivity computation in aperture synthesis interferometric radiometry 

      Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Bará Temes, Francisco Javier; Torres Torres, Francisco (Institute of Electrical and Electronics Engineers (IEEE), 1998-03)
      Article
      Accés obert
      This paper is concerned with the radiometric sensitivity computation of an aperture synthesis interferometric radiometer devoted to Earth observation. The impact of system parameters and the use of simultaneous redundant ...

    • Receiver specifications of the MIRAS demonstrator 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Bará Temes, Francisco Javier; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Borges, A. (SPIE The International Society for Optical Engineering, 2000)
      Text en actes de congrés
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      Improved weather forecast and climate monitoring rely on a better quantification of soil moisture (SM) and sea surface salinity (SSS). The most accurate way to measure them from remote sensors is by using radiometers at L ...

    • Redundant space calibration of hexagonal and Y-shaped beamforming radars and interferometric radiometers 

      Camps Carmona, Adriano José; Torres Torres, Francisco; López Dekker, Francisco J.; Frasier, S. J. (TAYLOR & FRANCIS LTD, 2003-12-31)
      Article
      Accés obert

    • Refining the methodology to correct the faraday rotation angle from SMOS measurements 

      Rubino, Roselena; Duffo Ubeda, Núria; González Gambau, Verónica; Corbella Sanahuja, Ignasi; Durán Martínez, Israel; Torres Torres, Francisco; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this work, a refined methodology to correct the Faraday Rotation angle (FRA) for the SMOS mission is proposed. The method is based on calculating the FRA using the SMOS full-pol radiometric data to obtain VTEC maps ...

    • Reliability analysis in aperture synthesis interferometric radiometers: application to L-Band microwave imaging radiometer with aperture synthesis instruments 

      Vall-Llossera Ferran, Mercedes Magdalena; Duffo Ubeda, Núria; Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Bará Temes, Francisco Javier (AMER GEOPHYSICAL UNION, 2001-03-31)
      Article
      Accés obert
      The Microwave Imaging Radiometer with Aperture Synthesis (MIRAS) instrument will be the first radiometer using aperture synthesis techniques for Earth observation. It will be boarded in the Soil Moisture and Ocean Salinity ...

    • Remote sensing of hydrometeors by means of interfermotric radiometry: theory and experimental results 

      Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Martín Neira, Manuel; Nesti, G; Olhmer, E (2000-05)
      Article
      Accés restringit per política de l'editorial
      Spaceborne and ground-based radiometric measurements at microwave and millimeterwave frequencies have proved able to monitor hydrometeors, but at present the angular resolution of those systems is limited by the radiometer's ...

    • Residual calibration error impact on SMOS SLL performance 

      Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Durán Martínez, Israel; Lin, Wu; Duffo Ubeda, Núria; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
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      Accés restringit per política de l'editorial
      SMOS Side Lobe Level (SLL), which is caused by the limited coverage of the measured visibility samples in the frequency domain, is responsible for non-negligible radiometric errors at pixels placed close to large brightness ...

    • Retrieving Sea Surface Salinity With Multi-Angular L-band Brightness Temperatures: Improvement By Spatio-Temporal Averaging. 

      Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Duffo Ubeda, Núria; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Batres Gonzalez, Luis (AMER GEOPHYSICAL UNION, 2005-03-31)
      Article
      Accés obert
      The Soil Moisture and Ocean Salinity (SMOS) mission was selected in May 1999 by the European Space Agency to provide global and frequent soil moisture and sea surface salinity maps. SMOS' single payload is Microwave Imaging ...

    • RF interference analisys in aperture synthesis interferometric radiometers: Application to L-band MIRAS instrument 

      Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Bará Temes, Francisco Javier; Capdevila Vives, Joan (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-03-31)
      Article
      Accés obert
      Current spaceborne radiometers do not achieve the required spatial resolution demanded by the scientific community due to antenna-size technological limitations. In recent years, several space agencies have been studying ...

    • Robust array configuration for a microwave interferometric radiometer: application to the geoSTAR project 

      Torres Torres, Francisco; Tanner, Alan B.; Brown, S. T.; Lambrigsten, Bjorn H. (IEEE Institute of Electrical and Electronics Engineers, 2007-01-31)
      Article
      Accés obert
      The Geostationary Synthetic Thinned Array Radiometer represents a promising new approach to microwave atmospheric sounding from geostationary orbit based on passive interferometry. One of the major concerns about the ...

    • RP: anàlisi de rendiment acadèmic i satisfacció 2012-13 Q2 

      Torres Torres, Francisco; Fabregas Canovas, Francisco Javier; López Martínez, Carlos (2013-07-08)
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