LMS算法及仿真实现，在等高线性能平面上绘制出了滤波器系数的运动轨迹和最优滤波器系数，以及错误概率的变化趋势。针对迭代次数变化和迭代步长变换分别作了相关讨论。-LMS algorithm and the simulation realization, in contour performance plane drawing out of the filter coefficient trajectory and optimal filter coefficient, and the change tendency of the error probability. According to the iteration times change and iterative step length transform the discussion related respectively.