Digital Predistortion Parameter Identification for RF Power Amplifiers Using Real-Valued Output Data
Artikel i vetenskaplig tidskrift, 2017

This brief presents a novel digital predistortion (DPD) parameter identification technique that requires only the acquisition of either the in-phase (I) or the quadrature (Q) component of the power amplifier (PA) output signal. To this end, an approach that allows us to estimate the parameters of a model using only one of the IQ components of the model output is presented. Based on experimental results, it is shown that the proposed real-valued measurements based technique can offer similar linearization capabilities as its complex-valued counterparts. The experimental results also indicate that the proposed technique can be used in combination with other techniques that focus on reducing the speed of analog-to-digital converters (ADCs)

digital predistortion

Iterative learning control

Semiconductor device measurement

power amplifier

iterative learning control

Circuits and systems

least squares approximation

Receivers

Analog-to-digital converter

Parameter estimation

nonlinear distortion

Predistortion

Bandwidth

Författare

Jessica Chani Cahuana

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

GigaHertz Centrum

Thomas Eriksson

GigaHertz Centrum

Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Christian Fager

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

GigaHertz Centrum

MUSTAFA ÖZEN

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

IEEE Transactions on Circuits and Systems II: Express Briefs

1549-7747 (ISSN) 1558-3791 (eISSN)

Vol. 64 1227-1231

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

Annan elektroteknik och elektronik

DOI

10.1109/TCSII.2017.2686004