Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=3#.VNMpqCzQrzE Author(s) Xiaochen LIN , Minglu JIN , Aifei LIU Affiliation(s) School of Electronic and Information Engineering Dalian University of Technology, Dalian, P.R.China . School of Electronic and Information Engineering Dalian University of Technology, Dalian, P.R.China . School of Electronic and Information Engineering Dalian University of Technology, Dalian, P.R.China . ABSTRACT Gain based predistorter (PD) is a highly effective and simple digital baseband predistorter which compensates for the nonlinear distortion of PAs. Lookup table (LUT) is the core of the gain based PD. This paper presents a discrete Newton’s method based adaptive technique to modify LUT. We simplify and convert the hardship of adaptive updating LUT to the roots finding problem for a system of two element real equations on athematics. And we deduce discrete Newton...
Scientific Research Publishing