Theoretical Investigation of Digital Predistortion System

DOI

10.2991/iiicec-15.2015.255How to use a DOI?

Keywords

Power Amplifier; Predistortion; Indirect learning structure; Polynomial model.

Abstract

Some doubt has been cast upon the predistortion system applying indirect learning structure (IDLS). In this paper, using the polynomial model for the predistorter (PD), theoretical investigation and simulation on the predistortion system performance basing on IDLS is put out. The result shows that the performance of IDLS predistortion system is affected by PD modeling error and the measurement noise, and the upper bound of the system normalized nean square error (NMSE) caused by the measurement noise is just the noise to signal ration, and if the measurement noise is low enough, there is a NMSE floor caused by modeling error. This is a novel result which can help to make predict approximate estimation of the factual IDLS predistortion system performance.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jingyi Lou
AU  - Xiaoxu Qu
PY  - 2015/03
DA  - 2015/03
TI  - Theoretical Investigation of Digital Predistortion System
BT  - Proceedings of the 2015 International Industrial Informatics and Computer Engineering Conference
PB  - Atlantis Press
SP  - 1150
EP  - 1154
SN  - 2352-538X
UR  - https://doi.org/10.2991/iiicec-15.2015.255
DO  - 10.2991/iiicec-15.2015.255
ID  - Lou2015/03
ER  -