Enviaments recents

  • An application oriented short course in image recognition 

    Tarrés Ruiz, Francisco; Bertran Albertí, Eduardo; Montoro López, Gabriel; Barbosa de Souza, Alisson (1998)
    Text en actes de congrés
    Accés obert
    An experimental course on Digital Image Processing and Recognition, together with its associated implementation, are described. The program is a user-friendly interface running under Matlab 4.0, which allows easy-control ...
  • Order reduction of wideband digital predistorters using principal component analysis 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; López Bueno, David; Bartzoudis, Nikolaos; Bertran Albertí, Eduardo; Payaró Llisterri, Miquel; Hourtane, Alain (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper presents how to apply order reduction in wide-band digital predistortion (DPD) linearizers using the principal component analysis (PCA) technique. This method is tested in a wireless backhauling transmitter ...
  • 3D digital predistortion for dual-band envelope tracking power amplifiers 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; López Bueno, David; García García, José Ángel (2013)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This paper proposes a novel three-dimensional digital predistorter (3D-DPD) suitable for compensating nonlinear distortion in dual-band (DB) envelope tracking (ET) power amplifiers (PAs). By taking into account the ...
  • Comprehensive circuit model of auto-limiting superconductor devices and systems 

    Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes Escobar, Alberto; O'Callaghan Castellà, Juan Manuel; García Pastor, David; Perea Robles, Rafael; Joshi, N.; Lu, X.; Orloff, Nathan D.; Booth, James C. (Institute of Electrical and Electronics Engineers (IEEE), 2016)
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    Accés restringit per política de l'editorial
    This paper presents a phenomenological equivalent circuit to model the phenomenon occurring when a section of superconducting transmission line transits from a superconducting state to a normal state. This phenomenon allows ...
  • Multi-dimensional LUT-based digital predistorter for concurrent dual-band envelope tracking power amplifier linearization 

    Pham, Thi Quynh Anh; López Bueno, David; Wang, Teng; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés obert
    This paper presents a multi lookup table (LUT) implementation scheme for the 3D distributed memory polynomial (3D-DMP) behavioral model used in Digital Predistortion (DPD) linearization for concurrent dual-band envelope ...
  • How to extract distributed circuit parameters from the scattering parameters of a transmission line 

    Orloff, Nathan D.; Popovic, Nina; Drisko, Jasper A.; Mateu Mateu, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    Distributed circuit parameters parameterize the transmission and reflection off a given transmission line in terms of a distributed resistance, inductance, capacitance, and conductance, which are per-unit-length, ...
  • A Ku band circularly polarized 2×2 microstrip antenna array for remote sensing applications 

    Ferré, Roger; Mira, Fermín; Luzi, Guido; Mateu Mateu, Jordi; Kalialakis, C. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
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    Accés restringit per política de l'editorial
    This paper reports the development of a Circularly Polarized (CP) microstrip patch array working at Ku band and in particular between 16.9-17.2GHz for remote sensing applications. The design is based on a sequential ...
  • Nonlinear effects of electrode and bragg reflector materials in BAW resonators 

    García Pastor, David; González Rodríguez, Marta; Hueltes Escobar, Alberto; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Kreuzer, Susanne; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2017)
    Comunicació de congrés
    Accés restringit per política de l'editorial
    This work presents a broadband characterization and modeling of the second harmonic nonlinear response in Bulk acoustic wave (BAW) resonators. The proposed circuit model is based on the constitutive equations describing ...
  • A real time emulator of the UMTS lower layers for the wineglass demonstrator 

    Gelonch Bosch, Antonio José; Revés Ballesté, Xavier; Umbert Juliana, Anna; Ferrús Ferré, Ramón Antonio; Casadevall Palacio, Fernando José (European Commission, 2000)
    Text en actes de congrés
    Accés obert
    In this paper, a general description of the main features of a Real Time Emulator, which emulates the lower layers of the UMTS Radio Access system, is presented. For the physical layer, the emulation model is based on the ...
  • Joint antenna diversity and combined DFE/decoding of trellis coded modulation on frequency-selective fading mobile radio channels 

    Gelonch Bosch, Antonio José (Institute of Electrical and Electronics Engineers (IEEE), 1993)
    Text en actes de congrés
    Accés obert
    A Monte Carlo simulation study of a combined FDMA/TDMA slow frequency-hopping trellis coded adaptive receiver for multipath Rayleigh fading channels is presented. The receiver structure, first proposed by Proakis (1989) ...
  • Modelización y estudio de reguladores de velocidad de diferentes tecnologías a partir de resultados experimentales 

    Bertran Albertí, Eduardo; Herranz Luis, Jaime; Munilla, I. (Asociación Española de Informática y Automática (AEIA), 1985)
    Text en actes de congrés
    Accés obert
    Se describen y modelan tres reguladores de velocidad de diferentes concepciones y tecnologías: El primero de turbina Kaplan y tecnología oleo-mecánica, los otros dos de turbinas Francis, uno oleo-mecánico y el otro ...
  • Performance of soft-output equalization and convolutional coding over frequency-selective fading radio channels 

    Valdominos Bardají, Antonio; Gelonch Bosch, Antonio José; Casadevall Palacio, Fernando José (Institute of Electrical and Electronics Engineers (IEEE), 1993)
    Text en actes de congrés
    Accés obert
    This paper presents an analysis of soft-output equalization and coding techniques applied to 4 and 16-QAM TDMA radio systems for frequency selective fading channels. In particular, typical urban and hilly terrain environments ...

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