Affine projection algorithm with variable data-reuse factor

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (26): 159-161.

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Affine projection algorithm with variable data-reuse factor

PENG Zuiliang，LI Feng

Department of Electronic Engineering，Fudan University，Shanghai 200433，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-09-11 Published:2011-09-11

可变数据重用因子仿射投影算法

彭最亮，李锋

复旦大学电子工程系，上海 200433

Abstract

Abstract: Based on the changed constraint condition of Affine Projection Algorithm（APA），a novel APA with variable data-
reuse factor is proposed.The confliction between covergence speed and misalignment or computational complexity is successfully solved.At the beginning of the algorithm a large data-reuse factor is achieved while a small one is achieved after the algorithm has converged.Simulations show the proposed algorithm has as fast convergence speed as APA with high data-reuse factor while its misalignment and computational complexity are as low as NLMS algorithm.

Key words: affine projection algorithm, variable data-reuse factor, convergence speed, misalignment, computational complexity

摘要： 从修改传统仿射投影算法（Affine Projection Algorithm，APA）的约束条件出发，推导出了一种新的可变数据重用因子仿射投影算法。该算法解决了传统APA算法收敛速度与稳态失调和计量复杂度之间的矛盾，实现了在初始阶段数据重用因子大，收敛后数据重用因子小的目标。仿真结果表明该算法最终达到了高数据重用因子APA的收敛速度和NLMS算法的计算量和稳态失调。

关键词: 仿射投影算法, 可变数据重用因子, 收敛速度, 稳态失调, 计算量

PENG Zuiliang，LI Feng. Affine projection algorithm with variable data-reuse factor[J]. Computer Engineering and Applications, 2011, 47(26): 159-161.

彭最亮，李锋. 可变数据重用因子仿射投影算法[J]. 计算机工程与应用, 2011, 47(26): 159-161.

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Affine projection algorithm with variable data-reuse factor

可变数据重用因子仿射投影算法

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