QIU Tianshuang   

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Paper Publications

Title of Paper:一种基于分数低阶协方差的自适应EP潜伏期变化检测方法

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Date of Publication:2004-01-25

Journal:电子学报

Included Journals:Scopus、EI、PKU、ISTIC、CSCD

Volume:32

Issue:1

Page Number:91-95

ISSN No.:0372-2112

Key Words:诱发电位;潜伏期变化;α稳定分布;分数低阶

Abstract:由于诱发电位(EP)信号中含有分数低阶α稳定分布噪声,致使传统的基于二阶统计量的EP潜伏期变化检测方法性能显著退化.本文提出了一种基于分数低阶协方差的自适应EP潜伏期变化检测方法(AFLC),通过对带噪信号的非线性处理,把其转变为二阶矩过程,从而保证了算法在α∈(0,2]范围内的可靠收敛,并获得了EP潜伏期变化估计的较高韧性和精度.给出了性能分析,计算机仿真和实验数据分析的结果.

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