arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1503.00792cs.ITmath.IT
收藏

相关熵度量惩罚下稀疏性感知的归一化最小均值p次幂算法

Sparsity Aware Normalized Least Mean p-power Algorithms with Correntropy Induced Metric Penalty

Wentao Ma, Hua Qu, Jihong Zhao, Badong Chen, Guan Gui

摘要:

针对非高斯脉冲噪声系统的辨识问题,提出了归一化LMP(NLMP)方法。然而,标准算法没有考虑未知系统固有的稀疏结构分布。为了充分利用稀疏性并抑制脉冲噪声,本文提出了一种稀疏NLMP算法,基于相关熵诱导度量(CIM)约束的NLMP(CIMNLMP)。在第一种算法的基础上,利用可变正则化参数(VRP)选择方法,进一步调整收敛速度和稳态误差,提出了一种改进的CIM约束可变正则化NLMP(CIMVRNLMP)算法。数值仿真验证了所提出的算法的有效性。

英文摘要:

For identifying the non-Gaussian impulsive noise systems, normalized LMP (NLMP) has been proposed to combat impulsive-inducing instability. However, the standard algorithm is without considering the inherent sparse structure distribution of unknown system. To exploit sparsity as well as to mitigate the impulsive noise, this paper proposes a sparse NLMP algorithm, i.e., Correntropy Induced Metric (CIM) constraint based NLMP (CIMNLMP). Based on the first proposed algorithm, moreover, we propose an improved CIM constraint variable regularized NLMP(CIMVRNLMP) algorithm by utilizing variable regularized parameter(VRP) selection method which can further adjust convergence speed and steady-state error. Numerical simulations are given to confirm the proposed algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑