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基于自回归高阶估计的盲信号提取算法 被引量:3

A BSE Algorithm Based on High Order Statistics Regression Parameter Estimation
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摘要 文章利用线性预测模型来描述信号的时序结构,提出了一种基于高阶统计量的自回归参数估计的盲信号提取算法。算法首先通过高阶累积量对AR模型中的加权参数进行估计,然后利用盲提取方法对混合信号进行抽取以达到混合信号的分离,比较了高阶累积量方法和二阶自相关分离算法在不含噪声和含高斯白噪声情况下的分离效果。最后通过仿真实验证实了算法的有效性。 This paper using linear forecast model to describe the temporal structure of signal,Put forward a blind source extraction(BSE) algorithm based on High order statistics regression parameter estimation.First the weighted parameters of cumulant AR model are estimated by High-order cumulant,then Use blind extraction methods for the separation of the mixed signals.Compared the cumulant method and second order autocorrelation separation algorithm with noise and without noise.Finally,simulation experiments prove the effectiveness of the proposed algorithm.
作者 任婕 朱立东
出处 《空间电子技术》 2012年第3期5-8,75,共5页 Space Electronic Technology
关键词 盲提取 AR自回归模型 高阶累积量 Blind source extraction(BSE) AR model High-order cumulant
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参考文献11

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二级参考文献14

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