Enviaments recents

  • Adaptive us-mrac for disturbance cancellation 

    Bertran Albertí, Eduardo; Montoro López, Gabriel (Institution of Electrical Engineers, 1995-01)
    Article
    Accés obert
    A variable structure, model reference adaptive control (VS-MRAC) devoted to cancel interferences without the requirement of an auxiliary input is proposed. This method is an improved alternative to the strategies recently ...
  • Fast precise point positioning: a system to provide corrections for single and multi-frequency navigation 

    Rovira Garcia, Adrià; Juan Zornoza, José Miguel; Sanz Subirana, Jaume; González Casado, Guillermo; Bertran Albertí, Eduardo (2016-09)
    Article
    Accés obert
    Fast Precise Point Positioning (Fast-PPP) provides Global Navigation Satellite System corrections in real-time. Satellite orbits and clock corrections are shown to be accurate to a few centimeters and a few tenths of a ...
  • A microprocessor-based speed controller for DC motors 

    Bertran Albertí, Eduardo; Herranz, J; Martinez, L; Miguel, J; Munilla, I. (1983-07)
    Article
    Accés obert
    The introduction of microprocessors into electric vehicles has opened many interesting possibilities for improving the operation and maintenance of such automotive systems. On the other hand, microcomputer-based motor ...
  • A microcomputer-based control system for electric vehicles 

    Bertran Albertí, Eduardo; Martinez, L; Miguel López, José María; Munilla, I (1982-07)
    Article
    Accés obert
    This paper describes a microcomputer-based algorithm used to control a dc separately excited motor for electric vehicle drive. The control programme consists essentially of two secondary programmes which perform respectively ...
  • Mechanical tuning of substrate integrated waveguide resonators 

    Mira, Fermín; Mateu, Joan; Collado Gómez, Juan Carlos (2012)
    Article
    Accés restringit per política de l'editorial
    This letter presents a novel approach for providing substrate-integrated waveguide tunable resonators by means of placing an additional metalized via-hole on the waveguide cavity. The via-hole contains an open-loop slot ...
  • Resource management implications and strategies for SDR clouds 

    Gómez Miguelez, Ismael; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Gelonch Bosch, Antonio José; Marojevic, Vuk (2012-09-19)
    Article
    Accés restringit per política de l'editorial
    This paper analyzes the computing resource management implications of SDR base stations implemented as SDR clouds. SDR clouds describe distributed antennas that connect to a data center for digital signal processing. ...
  • Superconducting Multiplexer Filter Bank for a Frequency-Selective Power Limiter 

    Padilla Díaz, Alberto; Mateu Mateu, Jordi; Orloff, Nathan D.; O'Callaghan Castellà, Juan Manuel; Collado Gómez, Juan Carlos; Booth, James C.; Rocas Cantenys, Eduard (2011-06)
    Article
    Accés obert
    This work proposes a superconducting multiplexer filter bank configuration to be used as a frequency-selective power limiter. The proposed configuration limits narrowband high-power signals within a single frequency band ...
  • A General approach for the calculation of intermodulation distortion in cavities with superconducting endplates 

    Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Menéndez, O; O'Callaghan Castellà, Juan Manuel (2003-01)
    Article
    Accés obert
    We report on a general procedure to calculate intermodulation distortion in cavities with superconducting endplates that is applicable to the dielectric-loaded cavities currently used for measurement of surface resistance ...
  • General electromagnetic simulation tool to predict the microwave nonlinear response of planar, arbitrarily-shaped HTS structures 

    Parrón Granados, Josep; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Rius Casals, Juan Manuel; Duffo Ubeda, Núria; O'Callaghan Castellà, Juan Manuel (2001-03)
    Article
    Accés obert
    This work describes a simulation tool being developed at UPC to predict the microwave nonlinear behavior of planar superconducting structures with very few restrictions on the geometry of the planar layout. The software ...
  • Numerical Optimization of Hybrid Dielectric/HTS Resonator for Surface Impedance Evaluation of HTS Films 

    Collado Gómez, Juan Carlos; Gonzalo, D; Rozan, E; O'Callaghan Castellà, Juan Manuel (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 ...

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