基于M估计的自仿射投影滤波算法  

Affine Projection Filter Algorithm Based on M-Estimate

作　　者：周辉[1] 朱杰[1] 

机构地区：[1]上海交通大学与贝尔实验室通信与网络联合实验室,上海200030

出　　处：《上海交通大学学报》2001年第6期874-877,共4页Journal of Shanghai Jiaotong University

基　　金：贝尔实验室上海研发中心资助项目

摘　　要：研究了自仿射投影算法的收敛性能 ,并针对其抗突出值干扰能力不强的缺点 ,将稳健估计中的 M估计应用于该算法 ,提出了一种基于 M估计的改进自仿射投影算法 (M- APA) .计算机模拟结果表明 ,该算法在基本保持原有算法收敛速度的同时 ,其抗突出值干扰能力远远优于原算法 。An affine projection algorithm based on M-estimate (M-APA) was proposed. An affine projection algorithm is an adaptive filter algorithm applicable to the acoustic echo cancellation. The M-estimate is applied to APA to improve its robustness. The simulation results show that M-APA is more robust against individual impulse noise than APA while it also has fast convergence speed, thus the tolerance to the impulse noise of the adaptive recognition system is improved.

关 键 词：回波抵消 自仿射投影算法 稳健估计 M估计 语音通信 自适应滤波 抗干扰能力 

分 类 号：TN912.3[电子电信—通信与信息系统]