一种改进的LMS算法及其在噪声对消中的应用。在分析传统定步长LMS算法和变步长LMS算法的基础上，提出了一种改进的变步长LMS算法。新算法利用瞬时误差绝对值三次方的指数形式和遗忘因子同时调整步长，更好的解决了收敛速度和稳态误差的矛盾。(An improved lms algorithm and its application to noise pair cancellation.Based on the analysis of traditional step lms algorithm and step lms algorithm, an improved step lms algorithm is proposed.The new algorithm uses the exponential form of the instantaneous error and the forgetting factor to better solve the contradiction between the convergence speed and the steady-state error. )