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
Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner
GigaHertz Centrum
Thomas Eriksson
GigaHertz Centrum
Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner
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 10 1227-1231Styrkeområden
Informations- och kommunikationsteknik
Ämneskategorier (SSIF 2011)
Telekommunikation
Kommunikationssystem
Signalbehandling
Annan elektroteknik och elektronik
DOI
10.1109/TCSII.2017.2686004