Beyond the Moore-Penrose Inverse: Strategies for the Estimation of Digital Predistortion Linearization Parameters
Pere L. Gilabert, R. Neil Braithwaite, Gabriel Montoro
Abstract
Digital 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.
Topics & Concepts
PredistortionLinearizerLinearizationAmplifierLinearityElectronic engineeringControl theory (sociology)Power (physics)Nonlinear distortionComputer scienceInverseEngineeringMathematicsNonlinear systemTelecommunicationsBandwidth (computing)PhysicsArtificial intelligenceGeometryQuantum mechanicsControl (management)Advanced Power Amplifier DesignRadio Frequency Integrated Circuit DesignSilicon Carbide Semiconductor Technologies