Enviaments recents

  • Impact of amplitude calibration errors on SMOS global images 

    Durán Martínez, Israel; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Duffo Ubeda, Núria; Oliva, Roger; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Some of the artifacts observed in SMOS brightness temperature images are originated in an inconsistency between correlation and antenna temperature calibration errors, which produces a multiplicative bias that scales with ...
  • Mitigation of cross-polar antenna pattern errors in SMOS: simplified approach 

    Durán Martínez, Israel; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Lin, Wu; Martín Neira, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    This paper analyzes a simplified image reconstruction method that exclusively takes into account the dominant antenna pattern terms to model image inversion artifacts and mitigate SMOS polarimetric spatial bias over the ...
  • Circuit model for coplanar-slotline tees 

    Ribó i Pal, Miquel; Pradell i Cara, Lluís (2000-05)
    Article
    Accés obert
    Coplanar-slotline tees have been used in a number of microwave circuits, although no complete models were available to explain their behavior. In this letter, a new
  • Millimeter-wave aperture synthesis radiometry for snow and ice mapping 

    Harvey, A.R.; Greenaway, A.H.; Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Bara Temes, Francisco Javier; Martín Neira, Manuel (1999)
    Text en actes de congrés
    Accés obert
    An outline design for a dual-band mm-wave polarimetric SAIR has been presented and is considered to be tractable. The envisaged application is for snow and ice mapping and ocean wind vector measurement. The vastly increased ...
  • From field experiments to salinity products: a tribute to the contributions of Jordi Font to the SMOS mission 

    Camps Carmona, Adriano José; Gabarró Prats, Carolina; Vall-Llossera Ferran, Mercedes Magdalena; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Torres Torres, Francisco; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Turiel Martínez, Antonio; Portabella, Marcos; Ballabrera Poy, Joaquim; González Gambau, V.; Martinez, Justino; Villarino Villarino, Ramon; Monerris Belda, Sandra; Bosch Lluis, Xavier; Sabia, Roberto; Talone, Marco; Piles Guillem, Maria; Pablos Hernánez, Miriam; Valencia Domenech, Enric (2016-09-01)
    Article
    Accés obert
    This article summarizes some of the activities in which Jordi Font, research professor and head of the Department of Physical and Technological Oceanography, Institut de Ciències del Mar (CSIC, Spanish National Research ...
  • Circuit model for a coplanar-slotline cross 

    Miquel, Ribó; Pradell i Cara, Lluís (2000-12)
    Article
    Accés obert
    A new 6-port
  • Generalized transverse resonance analysis of planar discontinuities considering the edge effect 

    Barlabe Dalmau, Antoni; Comerón Tejero, Adolfo; Pradell i Cara, Lluís (2000-12)
    Article
    Accés obert
    Abstract: Mode-matching related techniques such as the Generalized Transverse Resonance Method (GTR) suffer from the relative convergence phenomenon. To reduce its influence, we present a technique consisting of the ...
  • Circuit model for mode conversion in coplanar waveguide assymmetric shunt impedances 

    Miquel, Ribó; Pradell i Cara, Lluís (Institution of Electrical Engineers, 1999-04)
    Article
    Accés obert
    A new 'circuit model' for the conversion between even and odd modes in coplanar waveguide asymmetric shunt impedances is presented. The model is based on the separation of modes into two input and two output ports. In ...
  • Numerical optimization of hybrid dielectric/HTS resonators for surface impedance evaluation of HTS films 

    Collado Gómez, Juan Carlos; Gonzalo, David; Rozan, Edouard; O'Callaghan Castellà, Juan Manuel; Sans, C (1999-06)
    Article
    Accés obert
    This work describes an alternative to the traditional dielectric resonator topology used for measuring surface impedance in high temperature superconducting (HTS) films. A gap is introduced above the dielectric so that ...
  • Circuit model for slotline-to-coplanar waveguide asymmetrical transitions 

    Ribó i Pal, Miquel; Cruz, J De La; Pradell i Cara, Lluís (Institution of Electrical Engineers, 1999-07)
    Article
    Accés obert
    A new 'circuit-model' for slotline-to-coplanar waveguide asymmetrical transitions is presented and applied to the design of slotline resonators. The model, based on the separation of coplanar-waveguide (CPW) modes into two ...

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