Browsing by Author "Bertran Albertí, Eduardo"Més informacióMés informació

Now showing items 1-20 of 159

    • A class of stable nonlinear systems for modelling memory effects in RF power amplifiers 

      Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi; Bertran Albertí, Eduardo (Escuela Politécnica Superior Ingeniería Gijón, 2006)
      Conference report
      Open Access

    • A doherty power amplifier based on a tapered line impedance inverter 

      Mehran, Yahyavi; Bertran Albertí, Eduardo (2014)
      Conference report
      Restricted access - publisher's policy
      This paper presents a wideband GaN Doherty power amplifier (DPA) in the 2.6 GHz band with a 3 stages Wilkinson splitter where the impedance inverter is based on a tapered line instead of a quarter wave transformer. From ...

    • A full FPGA-based implementation of an adaptive digital predistorter 

      Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bertran Albertí, Eduardo (University California San Diego, 2009)
      Conference report
      Open Access

    • A method for real-time generation of slew-rate limited envelopes in envelope tracking transmitters 

      Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Berenguer Sau, Jordi (2010-02)
      Conference report
      Open Access

    • A microcomputer-based control system for electric vehicles 

      Bertran Albertí, Eduardo; Martinez, L; Miguel López, José María; Munilla, I (1982-07)
      Article
      Open Access
      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 ...

    • A microprocessor-based speed controller for DC motors 

      Bertran Albertí, Eduardo; Herranz, J; Martinez, L; Miguel, J; Munilla, I. (1983-07)
      Article
      Open Access
      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 new digital predictive predistorter for behavioral power amplifier linearization 

      Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Cesari Bohigas, Albert; Silveira, Daniel D. (Institute of Electrical and Electronics Engineers (IEEE), 2007-06)
      Article
      Open Access
      This letter presents a new digital adaptive predistorter (PD) for power amplifier (PA) linearization based on a nonlinear auto-regressive moving average (NARMA) structure. The distinctive characteristic of this PD is ...

    • A wideband Doherty-like architecture using a Klopfenstein taper for load modulation 

      Bertran Albertí, Eduardo; Mehran, Yahyavi (2015-11-02)
      Article
      Open Access
      A novel Doherty-like power amplifier (DPA) has been fabricated using 15 W, 2.7 GHz, GaN HEMT transistors. The quarter-wave transformer used in the classical DPA topology is replaced by a matching network including a ...

    • Active control of vibrant actuators with adaptive adjustment of the reference 

      Bertran Albertí, Eduardo; Montoro López, Gabriel (Fuertes, J.M. (ed.) IEEE, 1999)
      Conference report
      Open Access
      An improved adaptive filter for eliminating periodic vibrations of unknown frequency in rotary machinery is presented. The proposed canceller is based on a usual bank of digital adaptive notch filters, each filter tuned ...

    • Adaptative supression on narrow-band vibrations 

      Bertran Albertí, Eduardo; Montoro López, Gabriel (1998)
      Conference report
      Open Access
      The aim of the paper is to develop a theoretical analysis and implementation of an active control canceller devoted to eliminate narrow-band vibrations in rotary machines. The proposed system uses a bank of digital adaptive ...

    • Adaptive us-mrac for disturbance cancellation 

      Bertran Albertí, Eduardo; Montoro López, Gabriel (Institution of Electrical Engineers, 1995-01)
      Article
      Open Access
      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 ...

    • Advanced design features of Doherty power amplifiers 

      Bertran Albertí, Eduardo; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi (Unión Científica Internacional de Radio, 2012)
      Conference report
      Open Access
      A Doherty power amplifier (DPA) is an effective structure born in 1936 which, after a scarce revival around year 2000), had been strengthened from 2005 because its capability to combine linear amplification with power ...

    • An application oriented short course in image recognition 

      Tarrés Ruiz, Francisco; Bertran Albertí, Eduardo; Montoro López, Gabriel; Barbosa de Souza, Alisson (1998)
      Conference report
      Open Access
      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 ...

    • An efficient combination of digital predistortion and OFDM clipping for power amplifiers 

      Gilabert Pinal, Pere Lluís; Gadringer, Michael E.; Montoro López, Gabriel; Mayer, M.L.; Silveira, Daniel D.; Bertran Albertí, Eduardo; Magerl, G. (2009-09)
      Article
      Restricted access - publisher's policy

    • An experimental course on digital communications 

      Bertran Albertí, Eduardo; Tarrés Ruiz, Francisco; Montoro López, Gabriel (IEEE PRESS, 1998)
      Conference report
      Open Access
      In this paper a laboratory course on digital communications is presented. This course has been designed for medium degree professionals in the telecommunications field, and it is based on training equipment developed to ...

    • An LMS-based adaptive predistorter for cancelling nonlinear memory effects in RF power amplifiers 

      Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Cesari Bohigas, Albert; García, José Antonio (2007-12)
      Conference lecture
      Open Access
      This paper presents the design of an adaptive Digital Predistorter (DPD) for Power Amplifier (PA) linearization whoseimplementation and real time adaptation can be fully performed in a Field Programmable Gate Array (FPGA). ...

    • Analysis of inter-modulation products and nonlinear distortion in RF OFDM transmitter systems 

      O'Droma, M; Lei, Y; Bertran Albertí, Eduardo; Gilabert Pinal, Pere Lluís (IEEE, 2009)
      Conference report
      Open Access

    • Análisis Comparativo de Técnicas de Reducción de PAPR en Señales OFDM 

      Lopez Caro, Alberto; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bertran Albertí, Eduardo; Jové Casals, Jose M. (2009-09)
      Conference lecture
      Open Access

    • Antennas 

      Bertran Albertí, Eduardo (Universitat Politècnica de Catalunya, 2023-05-29)
      Lecture notes
      Open Access

    • Aplicación de técnicas avanzadas de lienalización a sistemas de RF/microondas 

      García, J.A.; Bertran Albertí, Eduardo; Begrains, J.; Montoro López, Gabriel; Ares, F.; Cabria, L. (Editorial de la UPV, 2005)
      Conference report
      Open Access