南京信息工程大学学报2013,Vol.5Issue(1):77-80,4.
基于正交小波变换的并行软判决盲均衡算法
Soft decision-directed blind equalization algorithm based on orthogonal wavelet transform
摘要
Abstract
Aiming at the slow convergence rate of constant modulus algorithm,a soft-decision blind equalization algorithm was proposed on the basis of orthogonal wavelet transform.The blind equalizer structure of orthogonal wavelet transform and characteristics of soft-decision blind equalization algorithm are analyzed.Then the de-correlation ability of orthogonal wavelet transform is utilized to reduce the signal autocorrelation,thus accelerate the convergence rate of proposed soft-decision algorithm.Simulation tests with underwater acoustic channel indicate that the proposed soft decision-directed blind equalization algorithm is improved in convergence rate compared with parallel soft decision equalization algorithm.关键词
盲均衡/正交小波变换/软判决/水声信道Key words
blind equalization / orthogonal wavelet transform / soft-decision / underwater channel分类
信息技术与安全科学引用本文复制引用
张艳萍,陈世波..基于正交小波变换的并行软判决盲均衡算法[J].南京信息工程大学学报,2013,5(1):77-80,4.基金项目
江苏省自然科学基金(BK2009410) (BK2009410)