Orthogonal Scalar Feedback Digital Pre-Distortion Linearization

• Published in: IEEE transactions on broadcasting Vol. 64; no. 2; pp. 319 - 330
• Main Authors: Rodrigues, Henry Douglas, Pimenta, Tales Cleber, de Souza, Rausley Adriano Amaral, Mendes, Luciano Leonel
• Format: Journal Article
• Language: English
• Published: IEEE 01.06.2018
• Subjects: Convergence; Digital pre-distortion; Estimation; intermodulation; Mathematical model; Nonlinear distortion; Numerical models; numerical optimization; Optimization; power amplifier linearization; Time-domain analysis

Digital pre-distortion (DPD) systems are employed to reduce intermodulation at the output of intrinsic non-linear RF power amplifiers. Typical DPD algorithms use time-domain linear regression to calculate the model coefficients used to compensate the amplifier's distortion. This solution has hi...