Title :
Nonlinear predistortion for dynamic power amplifiers linearization
Author :
Leulescu, Ovidiu ; Petrescu, Teodor
Author_Institution :
Fac. of Electron., Telecommun. & Inf. Technol., Univ. Politehnica of Bucharest
Abstract :
Signal predistortion is suitable for linearizing amplifier nonlinearity in high speed wireless applications. Volterra series provide an input-output relationship for nonlinear system with memory. The paper presents a new digital predistortion approach for the power amplifier linearization when we use the Volterra series for dynamic nonlinear modeling of the power amplifier comportment. The major advantage of the method is that the predistorter minimizes the total distortion power instead of reducing one specific intermodulation product by linearizing the bandpass response of the amplifier
Keywords :
Volterra series; intermodulation distortion; linearisation techniques; nonlinear dynamical systems; power amplifiers; Volterra series; dynamic power amplifiers linearization; intermodulation product; nonlinear predistortion; signal predistortion; Information technology; Interference elimination; Intermodulation distortion; Kernel; Nonlinear distortion; Nonlinear dynamical systems; Nonlinear systems; Power amplifiers; Power system modeling; Predistortion;
Conference_Titel :
Wireless Technology, 2005. The European Conference on
Conference_Location :
Paris
Print_ISBN :
2-9600551-1-X
DOI :
10.1109/ECWT.2005.1617725
