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Title:
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Under-sampling effects and computational cost reduction in RF power amplifier Behavioral Modeling
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Author:
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Wang, Teng; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CSC - Components and Systems for Communications Research Group |
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Abstract:
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This paper presents a study oriented at reducing the
computational complexity of least squares (LS) identification of
the parameters describing power amplifier’s (PA) behavioral
models. To reduce the dimensions of the input data matrix, two
strategies are proposed: i) model order reduction based on the
principal component analysis (PCA) theory; and ii) apply a meshselecting
method to reduce the number of required equations. In
this context, the effect of using under-sampling ADCs for the LS
parameter extraction aiming at reducing the costs of PA
identification is also discussed. Finally, the trade-off between the
cost/complexity reduction and quality (or identification accuracy)
loss is evaluated. The proposed strategies can also be considered
for low-computational cost digital predistortion implementations. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria electrònica::Electrònica de potència
-Power amplifiers
-Amplificadors de potència |
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Rights:
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Document type:
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Article - Published version
Conference Object |
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Published by:
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European Microwave Association (EuMA)
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