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Fractional time delay estimation algorithm based on the maximum correntropy criterion and the Lagrange FDF

机译：基于最大熵准则和Lagrange FDF的分数时延估计算法

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摘要

In this paper, a novel algorithm for fractional time delay estimation is proposed. It is based on the maximum correntropy criterion and the Lagrange fractional delay filter (FDF). The instantaneous correntropy is introduced to measure the similarity between received signals and estimated ones in the proposed algorithm. It leads to an effective performance under both Gaussian and impulsive noises. The performances, including the convergence of the algorithm and the variance of the time delay estimation, are theoretically analyzed. Simulations demonstrate that the time delay estimation precision of the proposed algorithm is higher than that utilizing the mixed modulated Lagrange explicit time delay estimation (MMLETDE) especially under low generalized signal-to-noise ratio (GSNR).
机译：本文提出了一种新颖的分数时延估计算法。它基于最大熵准则和拉格朗日分数延迟滤波器（FDF）。引入瞬时熵来测量所提出算法中接收信号与估计信号之间的相似性。它在高斯噪声和脉冲噪声下均具有有效的性能。从理论上分析了算法的收敛性和时延估计的方差。仿真结果表明，该算法的时延估计精度比利用混合调制拉格朗日显式时延估计（MMLETDE）要高，尤其是在低广义信噪比（GSNR）下。

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  • 来源
    《Signal processing》 |2015年第6期|222-229|共8页
  • 作者

    Yu Ling; Qiu Tian-shuang; Luan Shengyang;

  • 作者单位

    Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China ,School of Electronic & Information Engineering, Liaoning University of Technology, Jinzhou 112021, China;

    Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China;

    Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology, Dalian 116024, China;

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  • 正文语种 eng
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  • 关键词

    Fractional time delay estimation; Correntropy; Maximum correntropy criterion; Lagrange FDF;

    机译：小数时延估计;肾上腺皮质激素最大熵准则;拉格朗日FDF;

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