Detail publikačního výsledku

On the Sensitivity of Digital Predistortion to Impairments of Time-Interleaved A/D Converters

MARŠÁLEK, R.; GÖTTHANS, T.; HARVÁNEK, M.; POLÁK, L.

Originální název

On the Sensitivity of Digital Predistortion to Impairments of Time-Interleaved A/D Converters

Anglický název

On the Sensitivity of Digital Predistortion to Impairments of Time-Interleaved A/D Converters

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The need for high sampling rates in the feedback path of the digital adaptive predistortion for power amplifier linearization usually limits its use to the cases with sufficiently narrow bandwidth, that is contradictory to the envisaged signal bandwidth widening in the future communication systems. One of the solutions to relax the requirements on A/D converters in the predistortion system is to use them in a time-interleaved manner, but the imprecise time alignment, unequal gain or signal offset in the individual A/D sections may reduce the linearization performance. The goal of this paper is to investigate the potential effect of such impairments, present in the time-interleaved A/D conversion concept, to the performance of digital predistortion linearizer applied to typical filter-based multicarrier modulation.

Anglický abstrakt

The need for high sampling rates in the feedback path of the digital adaptive predistortion for power amplifier linearization usually limits its use to the cases with sufficiently narrow bandwidth, that is contradictory to the envisaged signal bandwidth widening in the future communication systems. One of the solutions to relax the requirements on A/D converters in the predistortion system is to use them in a time-interleaved manner, but the imprecise time alignment, unequal gain or signal offset in the individual A/D sections may reduce the linearization performance. The goal of this paper is to investigate the potential effect of such impairments, present in the time-interleaved A/D conversion concept, to the performance of digital predistortion linearizer applied to typical filter-based multicarrier modulation.

Klíčová slova

Linearization, predistortion, impairments, Ham- merstein predistorter, communications

Klíčová slova v angličtině

Linearization, predistortion, impairments, Ham- merstein predistorter, communications

Autoři

MARŠÁLEK, R.; GÖTTHANS, T.; HARVÁNEK, M.; POLÁK, L.

Rok RIV

2019

Vydáno

26.06.2018

ISBN

978-1-5386-2485-2

Kniha

Proceedings of 28th International Conference Radioelektronika

Strany od

1

Strany do

4

Strany počet

4

BibTex

@inproceedings{BUT149700,
  author="Roman {Maršálek} and Tomáš {Götthans} and Michal {Harvánek} and Ladislav {Polák}",
  title="On the Sensitivity of Digital Predistortion to Impairments of Time-Interleaved A/D Converters",
  booktitle="Proceedings of 28th International Conference Radioelektronika",
  year="2018",
  pages="1--4",
  doi="10.1109/RADIOELEK.2018.8376377",
  isbn="978-1-5386-2485-2"
}