摘要
依据仿射投影算法均方误差(MSE)的最快收敛速度条件,对算法迭代过程中的步长进行控制,提出了一种新的变步长仿射投影算法(VSSAPA)。该算法使步长随着输出误差的变化而自动调整,从而降低稳态误差。将提出的算法应用于系统辨识,结果表明,与传统仿射投影算法和变步长仿射投影算法相比该算法具有更低的稳态误差和更快的收敛速度。
The step size of affine projection algorithm is controlled according to the conditions on fast convergence speed, and a new variable step size affine projection algorithm（VSSAPA） is proposed.The step size of the algorithm is adjusted automatically with the variation of the output error to reduce the steady-state MSE.When the proposed algorithm is used in system identification,it has the faster convergence rate and lower means square error.
出处
《计算机工程与应用》
CSCD
北大核心
2011年第11期112-113,122,共3页
Computer Engineering and Applications
关键词
仿射投影算法
变步长
系统辨识
稳态误差
affine projection algorithm
variable step size
system identification
mean square error
