Publication result detail

Evaluation of Influence of Anti-Aliasing and Reconstruction Filters on Digital Predistortion

KRÁL, J.

Original Title

Evaluation of Influence of Anti-Aliasing and Reconstruction Filters on Digital Predistortion

English Title

Evaluation of Influence of Anti-Aliasing and Reconstruction Filters on Digital Predistortion

Type

Paper in proceedings (conference paper)

Original Abstract

Present wideband and spectrally-efficient communication systems require linear transmitters. As power amplifiers are naturally nonlinear, the linear transmitter is often achieved by application of a digital predistorter (DPD). DPDs require system bandwidth to be higher than communication bandwidth. We provide an evaluation of influence of the reconstruction and anti-aliasing filter on quality of predistortion process. Our results show that the generally accepted rule is too demanding and the actual required filters bandwidth is lower. This has direct impact on required sampling rates of system converters.

English abstract

Present wideband and spectrally-efficient communication systems require linear transmitters. As power amplifiers are naturally nonlinear, the linear transmitter is often achieved by application of a digital predistorter (DPD). DPDs require system bandwidth to be higher than communication bandwidth. We provide an evaluation of influence of the reconstruction and anti-aliasing filter on quality of predistortion process. Our results show that the generally accepted rule is too demanding and the actual required filters bandwidth is lower. This has direct impact on required sampling rates of system converters.

Keywords

digital predistortion, reconstruction filter, anti-aliasing filter, bandwidth

Key words in English

digital predistortion, reconstruction filter, anti-aliasing filter, bandwidth

Authors

KRÁL, J.

RIV year

2018

Released

27.04.2017

Publisher

Brno University of Technology, Faculty of Electrical Engineering and Communication

Location

Brno, Czech Republic

ISBN

978-80-214-5496-5

Book

Proceedings of the 23rd Conference STUDENT EEICT 2017

Pages from

405

Pages to

409

Pages count

5

BibTex

@inproceedings{BUT135645,
  author="Jan {Král}",
  title="Evaluation of Influence of Anti-Aliasing and Reconstruction Filters on Digital Predistortion",
  booktitle="Proceedings of the 23rd Conference STUDENT EEICT 2017",
  year="2017",
  pages="405--409",
  publisher="Brno University of Technology, Faculty of Electrical Engineering and Communication",
  address="Brno, Czech Republic",
  isbn="978-80-214-5496-5"
}