Beyond the Moore-Penrose inverse: Strategies for the estimation of digital predistortion linearization parameters

© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other worksDigital predistortion (DPD) is the linearization technique most often used to cope with the inherent tradeoff between linearity and efficiency in power amplifiers (PAs). Adaptation is needed to optimize DPD performance. This article reviews strategies for estimating the parameters controlling the DPD linearizer.This work was supported in part by the Spanish Government and Fonds Européen de Développement Économique et Régional under Ministerio de Ciencia, Innovación y Universidades projects TEC2017-83343- C4-1-R and TEC2017-83343-C4-2-R and by the Generalitat de Catalunya under Grant 2017 SGR 813.Peer ReviewedPostprint (published version