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Two novel memory polynomial models for modeling of RF power amplifiers

Per N. Landin (Institutionen för signaler och system, Kommunikationssystem) ; K. Barbe ; W. Van Moer ; M. Isaksson ; P. Handel
International Journal of Microwave and Wireless Technologies (1759-0787). Vol. 7 (2015), 1, p. 19-29.
[Artikel, refereegranskad vetenskaplig]

Two novel memory polynomial models are derived based on physical knowledge of a general power amplifier (PA). The derivations are given in detail to facilitate derivations of other model structures. The model error in terms of normalized mean square error (NMSE) and adjacent channel error power ratio (ACEPR) of the novel model structures are compared to that of established models based on the number of parameters using data measured on two different amplifiers, one high-power base-station PA and one low-power general purpose amplifier. The novel models show both lower NMSE and ACEPR for any chosen number of parameters compared to the established models. The low model errors make the novel models suitable candidates for both modeling and digital predistortion.

Nyckelord: Power amplifiers and linearizers, Digital Predistortion, Volterra Model



Denna post skapades 2015-03-17.
CPL Pubid: 213908

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Kommunikationssystem

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur