几种变步长LMS算法的性能分析与比较  

Performance analysis and comparison of variable step-size LMS algorithms

作　　者：李杨[1] 韩鹏[1] 檀虎[2] 

机构地区：[1]西北工业大学航海学院,西安710072 [2]西北机电工程研究所,咸阳712000

出　　处：《国外电子测量技术》2013年第3期28-30,共3页Foreign Electronic Measurement Technology

摘　　要：针对传统LMS算法的收敛速度与稳态误差存在矛盾这一问题,列出了NLMS、G-SVSLMS及改进的变步长LMS3种变步长LMS自适应滤波算法。通过仿真对比和理论分析,证明改进的变步长LMS算法具有更快的收敛速度、更小的稳态误差和更强的抗干扰能力。To solve the contradiction between the convergence rate and steady state error of LMS algorithm, the three variable step-size LMS algorithms were introduced. Such as NLMS,G-SVSLMS, an improved variable step-size LMS algorithm. Through comparison of the simulation experiments and theoretical analysis,the results testified that the improved variable step-size LMS algorithm has the faster convergence rate, smaller steady-state error and stronger anti-interference ability.

关 键 词：自适应滤波 LMS算法 变步长 

分 类 号：TN911[电子电信—通信与信息系统]