The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cet article présente un modèle discret efficace pour un amplificateur de puissance RF (PA) non linéaire avec effets de mémoire à long terme et analyse son erreur. La procédure de conversion de signaux et de systèmes RF en un domaine discret est expliquée pour un modèle polynomial de mémoire en bande de base discrète. Contrairement à un modèle polynomial à mémoire simple précédent, le modèle discret proposé a deux fréquences d'échantillonnage différentes : une pour les systèmes non linéaires avec effets de mémoire à long terme et une pour le signal d'entrée. Une méthode permettant de choisir une fréquence d'échantillonnage optimale pour le système et une profondeur de mémoire discrète est proposée afin de minimiser la sensibilité du système à la perturbation des données mesurées. Une fonction de sensibilité bidimensionnelle qui est un produit du résidu relatif et du nombre de conditions matricielles est définie pour le problème des moindres carrés du modèle proposé. Des exemples avec un signal WiBro 3FA à large bande et un signal WCDMA 4FA pour émetteurs non linéaires sont présentés pour décrire la procédure globale et l'efficacité du schéma proposé.
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Hyunchul KU, Youngcheol PARK, "Development of Efficient Discrete Model and Error Analysis for Nonlinear RF Power Amplifiers in Wireless Communications" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 9, pp. 2363-2369, September 2010, doi: 10.1587/transcom.E93.B.2363.
Abstract: This paper discusses an efficient discrete model for nonlinear RF power amplifier (PA) with long-term memory effects and analyzes its error. The procedure of converting RF signals and systems into a discrete domain is explained for a discrete baseband memory polynomial model. Unlike a previous simple memory polynomial model, the proposed discrete model has two different sampling frequencies: one for nonlinear system with long-term memory effects and one for input signal. A method to choose an optimal sampling frequency for the system and a discrete memory depth is proposed to minimize the sensitivity of the system for perturbation of the measured data. A two-dimensional sensitivity function which is a product of relative residual and matrix condition number is defined for least square problem of the proposed model. Examples with a wideband WiBro 3FA signal and a WCDMA 4FA signal for nonlinear transmitters are presented to describe the overall procedure and effectiveness of the proposed scheme.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.2363/_p
Copier
@ARTICLE{e93-b_9_2363,
author={Hyunchul KU, Youngcheol PARK, },
journal={IEICE TRANSACTIONS on Communications},
title={Development of Efficient Discrete Model and Error Analysis for Nonlinear RF Power Amplifiers in Wireless Communications},
year={2010},
volume={E93-B},
number={9},
pages={2363-2369},
abstract={This paper discusses an efficient discrete model for nonlinear RF power amplifier (PA) with long-term memory effects and analyzes its error. The procedure of converting RF signals and systems into a discrete domain is explained for a discrete baseband memory polynomial model. Unlike a previous simple memory polynomial model, the proposed discrete model has two different sampling frequencies: one for nonlinear system with long-term memory effects and one for input signal. A method to choose an optimal sampling frequency for the system and a discrete memory depth is proposed to minimize the sensitivity of the system for perturbation of the measured data. A two-dimensional sensitivity function which is a product of relative residual and matrix condition number is defined for least square problem of the proposed model. Examples with a wideband WiBro 3FA signal and a WCDMA 4FA signal for nonlinear transmitters are presented to describe the overall procedure and effectiveness of the proposed scheme.},
keywords={},
doi={10.1587/transcom.E93.B.2363},
ISSN={1745-1345},
month={September},}
Copier
TY - JOUR
TI - Development of Efficient Discrete Model and Error Analysis for Nonlinear RF Power Amplifiers in Wireless Communications
T2 - IEICE TRANSACTIONS on Communications
SP - 2363
EP - 2369
AU - Hyunchul KU
AU - Youngcheol PARK
PY - 2010
DO - 10.1587/transcom.E93.B.2363
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 9
JA - IEICE TRANSACTIONS on Communications
Y1 - September 2010
AB - This paper discusses an efficient discrete model for nonlinear RF power amplifier (PA) with long-term memory effects and analyzes its error. The procedure of converting RF signals and systems into a discrete domain is explained for a discrete baseband memory polynomial model. Unlike a previous simple memory polynomial model, the proposed discrete model has two different sampling frequencies: one for nonlinear system with long-term memory effects and one for input signal. A method to choose an optimal sampling frequency for the system and a discrete memory depth is proposed to minimize the sensitivity of the system for perturbation of the measured data. A two-dimensional sensitivity function which is a product of relative residual and matrix condition number is defined for least square problem of the proposed model. Examples with a wideband WiBro 3FA signal and a WCDMA 4FA signal for nonlinear transmitters are presented to describe the overall procedure and effectiveness of the proposed scheme.
ER -