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A Comparative Analysis of Behavioral Models for RF Power Amplifiers
Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för elektronik.
Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för elektronik.ORCID-id: 0000-0003-2887-049x
2006 (engelsk)Inngår i: IEEE transactions on microwave theory and techniques, ISSN 0018-9480, E-ISSN 1557-9670, Vol. 54, nr 1, s. 348-359Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A comparative study of nonlinear behavioral models with memory for radio-frequency power amplifier (PAs) is presented. The models are static polynomial, parallel Hammerstein (PH), Volterra, and radial basis-function neural network (RBFNN). Two PAs were investigated: one was designed for the third-generation (3G) mobile telecommunication systems and one was designed for the second-generation (2G). The RBFNN reduced the total model error slightly more than the PH, but the error out of band was significantly lower for the PH. The Volterra was found to give a lower model error than did a PH of the same nonlinear order and memory depth. The PH could give a lower model error than the best Volterra, since the former could be identified with a higher nonlinear order and memory depth. The qualitative conclusions are the same for the 2G and 3G PAs, but the model errors are smaller for the latter. For the 3G PA, a static polynomial gave a low model error as low as the best PH and lower than the RBFNN for the hardest cross validation. The models with memory, PH, and RBFNN, showed better cross-validation performance, in terms of lower model errors, than a static polynomial for the hardest cross validation of the 2G PA.

sted, utgiver, år, opplag, sider
2006. Vol. 54, nr 1, s. 348-359
Emneord [en]
modeling, neural networks, nonlinear distortion, power amplifiers (PAs), radio communication
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Identifikatorer
URN: urn:nbn:se:hig:diva-2354DOI: 10.1109/TMTT.2005.860500ISI: 000234657600044OAI: oai:DiVA.org:hig-2354DiVA, id: diva2:119016
Tilgjengelig fra: 2008-06-19 Laget: 2008-06-19 Sist oppdatert: 2018-03-28bibliografisk kontrollert
Inngår i avhandling
1. Radio Frequency Power Amplifiers: Behavioral Modeling, Parameter-Reduction, and Digital Predistortion
Åpne denne publikasjonen i ny fane eller vindu >>Radio Frequency Power Amplifiers: Behavioral Modeling, Parameter-Reduction, and Digital Predistortion
2007 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Stockholm: Royal Institute of Technology, 2007. s. 59
Serie
Trita-EE, ISSN 1653-5146 ; 2007:010
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Identifikatorer
urn:nbn:se:hig:diva-3571 (URN)978-91-7178-589-3 (ISBN)
Disputas
(engelsk)
Tilgjengelig fra: 2009-01-22 Laget: 2009-01-21 Sist oppdatert: 2018-03-13bibliografisk kontrollert

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