一种变遗忘因子RLS算法的分析与仿真  

Analysis and Simulation of a Variable Forgetting Factor RLS Algorithm

作　　者：李倩茹[1] 王于丁[1] 张晓芳[2] 

机构地区：[1]西安通信学院,陕西西安710106 [2]西安建筑科技大学信息与控制工程学院,陕西西安710055

出　　处：《现代电子技术》2008年第17期45-47,共3页Modern Electronics Technique

摘　　要：自适应信息处理的算法中的RLS算法在信号处理等方面已经得到了大量的应用。首先简要介绍了RLS算法,然后通过对RLS算法中的遗传因子的研究与分析,提出了一种新的变遗忘因子算法,通过修正函数对遗传因子进行修正,实现了此算法的优势,最后对该算法做了仿真试验。试验证明,此算法收敛速度和跟踪效果远好于普通RLS算法,并且系统稳定,具有较强的应用价值。The RLS algorithm in the adaptive information processing algorithm is widely used in signal processing. In this paper, RLS algorithm is firstly introduced, with the help of research and analysis to forgetting factor of RLS algorithm,a new kind of variable forgetting factor algorithm is put forward. This algorithm is superior to common RLS algorithm with the help of adjusting the forgetting factor by the adjustable - function, the computer experiments for the algorithm are done. The experiments indicate that the convergence speed and tracking effort of this new algorithm are far better than common RLS algorithm＇s,the system is steady and has important application value.

关 键 词：遗忘因子 RLS算法 均方误差 修正函数 

分 类 号：TN92[电子电信—通信与信息系统]