电子学报Issue(11)：2297-2301,5.DOI:10.3969/j.issn.0372-2112.2013.11.029
一种基于分段线性化的低邻道泄漏预失真方法
A New Predistortion Method with Low Adjacent Channel Leakage Based on Piecewise Linear
摘要
Abstract
A new method of linearity based on predistortion for memory nonlinear system is introduced in this paper .Differ-ent from the traditional predistortion models (direct study model and indirect study model ) ,the transfer function instead of the in-verse transfer function is obtained for memory nonlinear system .The transfer function is presented as piecewise linear function first , and then be used in predistortion process .The results show that the NMSE (Normalized Mean Square Error ) of the memory nonlin-ear system output is reduced about 80dB ,and the ACLR (Adjacent Channel Leakage Ratio ) is reduced over 70dB ,comparing with no predistortion system .The memory and nonlinear characteristics are eliminated ,and the relationship of input and output becomes linear and memoryless .关键词
预失真/分段线性化/邻道泄漏比/记忆非线性系统Key words
predistortion/piecewise linear/adjacent channel leakage ratio/memory nonlinear system分类
信息技术与安全科学引用本文复制引用
胡明,潘文生,朱晓东..一种基于分段线性化的低邻道泄漏预失真方法[J].电子学报,2013,(11):2297-2301,5.基金项目
国家重大专项（No ．2010ZX03007-003，No ．2011ZX03001-006-01，No ．2012ZX03003010-003，No ．2014ZX03003001-002）；国家自然科学基金 （）
