This paper studied the mothod of acoustic echo cancellation based on Least Mean Square (LMS) and described an improved adaptive LMS algorithm with fast convergence speed.

• 本文研究了基于最小均方(Least Mean Squares,LMS)准则的自适应回声抵消算法,给出了一种具有更高收敛速度的改进自适应声学回声抵消算法。