一种改进的LMS自适应算法研究

The Research of Modified Adaptive Algorithm Based on LMS

传统的LMS算法的精度不高,收敛速度慢,并且跟踪性能不好.本论文主要研究了一种改进型的变步长的LMS自适应算法NLMS,并基于MATLAB仿真软件设计完成了一种改进型的NLMS自适应滤波器,对该算法进行仿真验证.结果表明:该改进型的自适应算法NLMS平均误差更小,精度更高.

The traditional LMS algorithm accuracy is low, convergence is slow and tracking performance is poor. This paper presents a study of a modified adaptive algorithm named NLMS, and the design of improved LMS adaptive filter is completed based on MATLAB. The results show that： the improved NLMS adaptive algorithm average error is smaller, and the accuracy is improved.