Research on design theory of LMS adaptive filter

This paper introduces the basic theory of adaptive filter 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.