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Smart-RF Project: Measurement and Digital Predistortion of Power Amplifiers Using Volterra Series
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In this paper we present power amplifier (PA) modeling and digital predistortion (DP) methods with memory effects using baseband Volterra series representation. A reduction of complex Volterra model coefficients was possible using their symmetry properties. Our simulation and measurement results show a good linearization performance applying very simple Volterra model structures. A further advantage of our approach is a simple offline DP model identification, without need to analytically or iteratively calculate a PA model inverse. The measurement results are presented using different digital modulated signals. DP with and without memory are compared. Finally we report an improvement of PA efficiency regarding a defined output signal spectral mask.
@inproceedings{LSK10madp,
author = "Jacek Liszewski and Benjamin Schubert and Wilhelm Keusgen",
title = "{Smart-RF Project: Measurement and Digital Predistortion of Power Amplifiers Using Volterra Series}",
booktitle = "{German Microwave Conference (GEMIC)}",
address = "Berlin, Germany",
month = mar,
year = "2010",
}
Last modified 15.09.2010 16:14
Fokusseminar 02.11.2012
