QIU Tianshuang   

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Paper Publications

分数低阶矩的信号盲分离方法

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Indexed by:Journal Article

Date of Publication:2006-03-25

Journal:通信学报

Included Journals:CSCD、ISTIC、PKU、EI

Volume:27

Issue:3

Page Number:32-36

ISSN:1000-436X

Key Words:分数低阶矩;α稳定分布;盲分离;独立成份分析

Abstract:具有尖峰脉冲特性的α稳定分布信号或噪声不存在二阶及二阶以上的统计量,传统基于二阶统计量(SOS)或高阶统计量(HOS)盲分离和独立成份分析(ICA)算法效果不理想,甚至失效.对脉冲噪声环境下的盲分离技术进行了研究,推导出一种基于分数低阶矩的信号盲分离算法,并进行了仿真检验,结果表明所提出的方法对实现α稳定分布信号或含有α稳定分布噪声的信号盲分离效果很好,并具有良好的韧性.

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