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, Romania
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; linearisation techniques; nonlinear distortion; power amplifiers; Volterra series; bandpass response; dynamic nonlinear modeling; intermodulation product; power amplifier linearization; signal predistortion; Information technology; Interference elimination; Intermodulation distortion; Kernel; Nonlinear distortion; Nonlinear dynamical systems; Nonlinear systems; Power amplifiers; Power system modeling; Predistortion;
Conference_Titel :
Microwave Conference, 2005 European
Print_ISBN :
2-9600551-2-8
DOI :
10.1109/EUMC.2005.1610308
