Detail publikačního výsledku

Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques

GÖTTHANS, T.; MARŠÁLEK, R.; POSPÍŠIL, M.; BLUMENSTEIN, J.; BAUDOIN, G.

Originální název

Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques

Anglický název

Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

In order to compensate for nonlinearities and memory effects introduced by power amplifiers, the digital predistortion is a widely used technique. Commonly the digital predistortion is based on polynomials derived from Volterra series or on lookup tables. Both approaches require time to find the solution that can be applied to digital predistorter. Nevertheless, for predistorters to be actually implemented in real-time scenarios, fast convergence and low complexity is highly required. Unfortunately there does not exist a general rule for simple choice in terms of performance, convergence time and complexity. Thus in this paper a brief comparison of Volterra based series (orthogonal polynomials and simplified dynamic deviation reduction of second order) and lookup tables with cubic interpolation which are widely used schematic is provided.

Anglický abstrakt

In order to compensate for nonlinearities and memory effects introduced by power amplifiers, the digital predistortion is a widely used technique. Commonly the digital predistortion is based on polynomials derived from Volterra series or on lookup tables. Both approaches require time to find the solution that can be applied to digital predistorter. Nevertheless, for predistorters to be actually implemented in real-time scenarios, fast convergence and low complexity is highly required. Unfortunately there does not exist a general rule for simple choice in terms of performance, convergence time and complexity. Thus in this paper a brief comparison of Volterra based series (orthogonal polynomials and simplified dynamic deviation reduction of second order) and lookup tables with cubic interpolation which are widely used schematic is provided.

Klíčová slova

Linearization, predistortion, power amplifier, LUT

Klíčová slova v angličtině

Linearization, predistortion, power amplifier, LUT

Autoři

GÖTTHANS, T.; MARŠÁLEK, R.; POSPÍŠIL, M.; BLUMENSTEIN, J.; BAUDOIN, G.

Rok RIV

2016

Vydáno

15.04.2015

ISBN

978-1-4799-8117-5

Kniha

25th International Conference Radioelektronika 2015

ISSN

NEUVEDENO

Strany od

309

Strany do

312

Strany počet

4

URL

https://ieeexplore.ieee.org/document/7129047

BibTex

@inproceedings{BUT114666,
  author="Tomáš {Götthans} and Roman {Maršálek} and Martin {Pospíšil} and Jiří {Blumenstein} and Genevieve {Baudoin}",
  title="Experimental Verification and Comparison of Polynomials and LUTs Predistortion Techniques",
  booktitle="25th International Conference Radioelektronika 2015",
  year="2015",
  pages="309--312",
  doi="10.1109/RADIOELEK.2015.7129047",
  isbn="978-1-4799-8117-5",
  url="https://ieeexplore.ieee.org/document/7129047"
}