Exploració per autor "Montoro López, Gabriel"
Ara es mostren els items 57-76 de 109
-
Heuristic algorithms for power amplifier behavioral modeling
Gilabert Pinal, Pere Lluís; Silveira, Daniel D.; Montoro López, Gabriel; Gadringer, Michael E.; Bertran Albertí, Eduardo (Institute of Electrical and Electronics Engineers (IEEE), 2007-10)
Article
Accés obertThis letter presents the use of two heuristic search algorithms, named simulated annealing and genetic algorithms, for the extraction of power amplifier (PA) behavioral model parameters. Their application in this letter ... -
Highly efficient transmitter architectures
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; García García, José Angel (Cambridge University Press, 2014-10-01)
Capítol de llibre
Accés restringit per política de l'editorial -
Hybrid envelope amplifier for envelope tracking power amplifier transmitters
Vizarreta Paz, Pedro Pablo; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2012)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents an envelope tracking (ET) Power Amplifier (PA) whose architecture includes an efficient Envelope Amplifier (EA) and a bandwidth reduction algorithm suitable for real time applications. The EA consists ... -
Implementación de un transmisor LINC en un procesador FPGA
Vizarreta Paz, Pedro Pablo; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Berenguer Sau, Jordi (2011)
Text en actes de congrés
Accés obert -
Implementation issues in FPGA-controlled polar transmitters
Gilabert Pinal, Pere Lluís; Cabria, Lorena; García, José Angel; Montoro López, Gabriel; Bertran Albertí, Eduardo (2010)
Text en actes de congrés
Accés obert -
Improvement of Up-converters linearity for Ka-band operation
Bertran Albertí, Eduardo; Berenguer Sau, Jordi; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Cidronali, Alessandro (2007-12)
Comunicació de congrés
Accés obertThe application of a digital predistorter to the linearisation of a Ka-band mixer is presented herein. The general objective in the TX design is to get the best trade-off between linearity and costs. This require the most ... -
Improvements and analysis of nonlinear parallel behavioral models
Silveira, Daniel D.; Gilabert Pinal, Pere Lluís; Lavrador, P.M.; Pedro, J.C.; Gadringer, Michael E.; Montoro López, Gabriel; Bertran Albertí, Eduardo; Magerl, G. (2009-09)
Article
Accés obert -
Incremental behavioral modeling of envelope-dependent nonlinear distortion in dynamic supply power amplifiers
Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Vizarreta Paz, Pedro Pablo (Unión Científica Internacional de Radio, 2011)
Text en actes de congrés
Accés obertThis paper presents behavioral modeling of an envelope tracking (ET) power amplifier (PA) excited by an slewrate limited envelope. In order to relax the slew-rate requirements of current efficient envelope amplifiers ... -
Independent digital predistortion parameters estimation using adaptive principal component analysis
López Bueno, David; Pham, Thi Quynh Anh; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2018-01-01)
Article
Accés obertThis paper presents an estimation/adaptation method based on the adaptive principal component analysis (APCA) technique to guarantee the identification of the minimum necessary parameters of a digital predistorter. The ... -
Linealización digital de transmisores mediante redes neuronales no lineales
López Bueno, David; Pham, Thi Quynh Anh; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (2019)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper presents an overview on how the artificial neural networks (ANN) are applied to digitally linearize modern transmitters. The use of nonlinear ANNs is intended to either assist or replace the traditional crest ... -
Linealizador basado en la teoría de H. para amplificadores de radiocomunicaciones
Montoro López, Gabriel; Bertran Albertí, Eduardo (Universidad da Coruña, 2003)
Text en actes de congrés
Accés obert -
Look-up table based digital predistortion schemes and implementation
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Cambridge University Press, 2011-09-29)
Capítol de llibre
Accés restringit per política de l'editorial -
Look-up table implementation of a slow envelope dependent digital predistorter for envelope tracking power amplifiers
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (2012-02-13)
Article
Accés restringit per política de l'editorialThis letter presents a dynamic slow envelope dependent digital predistorter (SED-DPD) capable of compensating for the nonlinear distortion and memory effects that arise in envelope tracking (ET) power amplifiers (PAs) when ... -
Low-voltage oscillator features increased spectral purity
Bertran Albertí, Eduardo; Montoro López, Gabriel (1998-11)
Article
Accés restringit per política de l'editorial -
Multi look-up table FPGA implementation of an adaptive digital predistorter for linearizing RF power amplifiers with memory effects
Gilabert Pinal, Pere Lluís; Cesari Bohigas, Albert; Montoro López, Gabriel; Bertran Albertí, Eduardo; Dilhac, Jean Marie (Institute of Electrical and Electronics Engineers (IEEE), 2008-02)
Article
Accés obertThis paper presents a hardware implementation of a digital predistorter (DPD) for linearizing RF power amplifiers (PAs) for wideband applications. The proposed predistortion linearizer is based on a nonlinear auto-regressive ... -
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 obertThis 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 ... -
Multiple lookup table predistortion for adaptive modulation
Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Montoro López, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2005-12)
Article
Accés obertThis paper presents a multiple LUT digital adaptive predistorter based on a Hammerstein model that uses the return channel to feed back information from the receiver, concretely the bit error rate (BER), in order to ... -
On PAPR for combined modulation and access techniques in configurable radio
Bertran Albertí, Eduardo; Porta, Oriol; Montoro López, Gabriel; Delgado Penin, José Antonio (2010)
Text en actes de congrés
Accés obert -
On passive bias networks for drain-modulated power amplifiers
Bertran Albertí, Eduardo; García García, José Angel; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi (MACMILLAN PUBLISHERS LIMITED, 2009-12-16)
Text en actes de congrés
Accés obert -
On the Wiener and Hammerstein models for power amplifier predistortion
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bertran Albertí, Eduardo (Institute of Electrical and Electronics Engineers (IEEE), 2005-12)
Text en actes de congrés
Accés obertThis paper presents a comparative study on the suitability of using Hammerstein or Wiener models to identify the power amplifier (PA) nonlinear behavior considering memory effects. This comparative takes into account ...