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A nonparametric variable step-size NLMS algorithm for transversal filters
DOI:10.1016/j.amc.2011.02.026.png)
摘要
En 中文
A nonparametric adaptive filtering approach is proposed in this paper. The algorithm is obtained by exploiting a time-varying step size in the traditional NLMS weight update equation. The step size is adjusted according to the square of a time-averaging estimate of the autocorrelation of a priori and a posteriori error. Therefore, the new algorithm has more effective sense proximity to the optimum solution independent of uncorrelated measurement noise. Moreover, this algorithm has fast convergence at the early stages of adaptation and small final misadjustment at steady-state process. It works reliably and is easy to implement since the update function is nonparametric. Furthermore, the experimental results in system identification applications are presented to illustrate the principle and efficiency of the proposed algorithm. (C) 2011 Elsevier Inc. All rights reserved.
Keyword:
Normalized least-mean-square (NLMS)
Variable step-size NLMS
Nonparametric
Transversal filters
System identification
期刊
IF:
3.4
论文数:
2.3W
被引数:
3.3W
机构
引用论文
Convergence and steady-state analysis of a variable step-size NLMS algorithm变步长NLMS算法的收敛性和稳态分析
SIGNAL PROCESSING
IF3.6
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