LMS自适应滤波器的设计理论研究

摘要

This paper introduces the basic theory of adaptive Glter idea, specifically, the adaptive filter the rationale,algorithm and design methods. First it introduced the principle of adaptive filter, then has made the detailed elaboration to the FIR structure filter. Adaptive algorithm is the core of the whole system, it focuses on the LMS algorithm design methods, design procedures have been analyzed. Finally, the MATLAB simulation of LMS algorithm is presented. Based on performance evaluation criteria and experimental results show that the filtering effect of the adaptive filter is superior.%主要介绍了自适应滤波器的基本理论思想,具体阐述了自适应滤波器的基本原理、算法及设计方法.首先介绍自适应滤波器的原理,然后对FIR结构滤波器做了详细的阐述,自适应算法是整个系统的核心,重点对LMS算法的设计方法,设计步骤做了分析,最后对LMS算法进行MATLAB仿真,根据性能评价标准和实验结果表明,该自适应滤波器滤波效果优越.