A New Variable Step Size LMS Adaptive Filtering Algorithm

摘要：

Focus on the inconsistency between the convergence rale and the steady state error in LMS algorithm,this paper proposed a new variable step size LMS(VSS-LMS) algorithm,by constructing a nonlinear function between the step factor μ and the error signal e(n). The algorithm which modified the weight vector appropriately achieving the optimal by adjusting the step size parameters,could improve the convergence rate and steady-state error performance effectively. The simulation analysis showed that,this algorithm had faster convergence rate speed and smaller steady-state maladjustment compared with the basic LMS algorithm and parts of the similar variable step size algorithm,it fatherly validated this algorithm was superior to existing algorithms.

关键词： variable step size LMS algorithm convergence rate,steady-state maladjustment.

作者: AO Wei XIANG Wan-Qin ZHANG You-Peng WANG Lei LV Chun-Ying WANG Zheng-Hua

作者单位: Chongqing Communication College Chongqing,China Chongqing Electric Power College Chongqing,China

会议类型: 国际会议

会议名称: 2012 International Conference on Computer Science and Electronic Engineering(2012 IEEE计算机科学与电子工程国际会议 ICCSEE 2012)

会议地点: 杭州

会议语种:英文

页码: 265-268

在线出版日期: 2012-03-23（万方平台首次上网日期，不代表论文的发表时间）