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Title: Rational function-based model with memory for power amplifier behavioral modeling
Author: Cunha, T.R.
Lavrador, P.M.
Lima, E.G.
Pedro, J.C.
Keywords: Behavioral modeling
Power amplifier modeling
Behavior prediction
Behavioral modeling
Catastrophic errors
Linear regression techniques
Measured data
Model extraction
Power amplifiers
Rational functions
Issue Date: 2011
Abstract: Polynomials have been extensively used to model power amplifier (PA) behavior because of their linearity in the parameters, which eases their identification. However, these models are inherently local, being unable to extrapolate the PA behavior for conditions not considered during model extraction. This paper presents a model which, based on the ratio of two polynomials, avoids the catastrophic error degradation of polynomials (being thus suitable for large-signal behavior prediction) but still can be extracted using linear regression techniques. This model is tested with measured data from a class-AB PA. © 2011 IEEE.
Peer review: yes
DOI: 10.1109/INMMIC.2011.5773328
ISBN: 978-1-4577-0649-3
Appears in Collections:DETI - Comunicações

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