Exploració per autor "Montoro López, Gabriel"
Ara es mostren els items 63-82 de 106
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Linealización digital de transmisores mediante redes neuronales no lineales
López Bueno, David; Pham, Thi Quynh Anh; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (2019)
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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)
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Look-up table based digital predistortion schemes and implementation
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Cambridge University Press, 2011-09-29)
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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
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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)
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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)
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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)
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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 ... -
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'editorialThis 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 ... -
Partial least squares identification of multi look-up table digital predistorters for concurrent dual-band envelope tracking power amplifiers
Pham, Thi Quynh Anh; López Bueno, David; Wang, Teng; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2018-08-02)
Article
Accés obertThis paper presents a technique to estimate the coefficients of a multiple-look-up table (LUT) digital predistortion (DPD) architecture based on the partial least-squares (PLS) regression method. The proposed 3-D distributed ... -
Peak cancellation and digital predistortion of high-order QAM wideband signals for next generation wireless backhaul equipment
López Bueno, David; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bartzoudis, Nikolaos (2014)
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Accés restringit per política de l'editorialThis paper evaluates the linearity performance in a wideband wireless backhaul transmitter when applying crest factor reduction (CFR) and digital predistortion (DPD) techniques to enhance the transmitted output power, and ... -
Performance analysis of power amplifier back-off levels in UWB transmitters
Bertran Albertí, Eduardo; O'Droma, Máirtín; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2007-11)
Article
Accés obertThis paper focuses on the interplay between data throughput and battery duration in UWB units, both of which the most perceptible at the user’ level. The potential benefits of enlarging the power amplifier back-off ... -
Power amplifier nonlinear modeling for digital predistortion
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Cambridge University Press, 2011-09-29)
Capítol de llibre
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Prediction of the optimal phase shift between control signals in dual-input power amplifiers
Guillena Berenguer, Estefanía; Li, Wantao; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2020)
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Accés restringit per política de l'editorialThis paper evaluates the effect of the phase shift between the two control signals in a dual-input load modulated balanced amplifier (LMBA). While the drain efficiency of the LMBA is not significantly affected by the phase ... -
Predistorsión digital y adaptativa de amplificadores de RF con modelos de Hammerstein
Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (Editorial de la UPV, 2005)
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Reconfigurable DPD based on ANNs for wideband load modulated balanced amplifiers under dynamic operation from 1.8 to 2.4 GHz
Guillena Berenguer, Estefanía; Li, Wantao; Montoro López, Gabriel; Quaglia, Roberto; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2021-01-01)
Article
Accés obertThis article proposes a methodology to ensure linear amplification of a load modulated balanced amplifier (LMBA) while keeping the power efficiency as high as possible over a frequency band ranging from 1.8 to 2.4 GHz and ... -
Reducción de factor de cresta y predistorsión digital de señales QAM de banda ancha para equipos backhaul de próxima generación
López Bueno, David; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bartzoudis, Nikolaos; Payaró Llisterri, Miquel (Unión Científica Internacional de Radio (URSI), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper evaluates the linearity performance in a wideband wireless backhaul transmitter when applying crest factor reduction (CFR) and digital predistortion (DPD) techniques to enhance the transmitted output power, ...