Title :
Behavioral modeling of nonlinear power amplifiers using threshold decomposition-based piece wise linear approximation
Author :
Gharaibeh, Khaled M.
Author_Institution :
Yarmouk Univ., Irbid
Abstract :
A new behavioral modeling approach based on the piece wise linear (PWL) approximation of nonlinear functions is presented. The PWL model is obtained using threshold decomposition of the input-output characteristics. The PWL model is proved to provide a better modeling stability and modeling error performance than conventional polynomial models specially in the design of digital predistorters.
Keywords :
function approximation; nonlinear distortion; nonlinear functions; power amplifiers; PWL model; behavioral modeling approach; digital predistorters; input-output characteristics; nonlinear functions; nonlinear power amplifiers; piecewise linear approximation; threshold decomposition-based PWL approximation; Linear approximation; Nonlinear distortion; Nonlinear filters; Peak to average power ratio; Piecewise linear approximation; Piecewise linear techniques; Polynomials; Power amplifiers; Power system modeling; Predistortion; nonlinear distortion; piecewise linear; power amplifiers; threshold decomposition;
Conference_Titel :
Radio and Wireless Symposium, 2008 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-1462-8
Electronic_ISBN :
978-1-4244-1463-5
DOI :
10.1109/RWS.2008.4463602
