| 混沌混合信号欠定盲分离方法的研究 |
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| 引用本文： | 成谢锋,徐亮,严仍义. 混沌混合信号欠定盲分离方法的研究[J]. 南京邮电大学学报(自然科学版), 2011, 31(1): 29-34 |
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| 作者姓名： | 成谢锋 徐亮 严仍义 |
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| 作者单位： | 南京邮电大学电子科学与工程学院,江苏,南京,210046 |
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| 基金项目： | 国家自然基金项目(61073115); 山东省自然科学基金项目(y2007G14); 南京邮电大学引进人才基金(NY207139)资助项目 |
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| 摘 要： | 提出一种混沌混合信号欠定盲源分离的方法.首先讨论了混沌信号的特征,利用EMD对信号进行分层并且得到独立子波函数,然后把独立子波函数加入到单路混沌信号中从而实现混沌信号的盲分离;最后通过混沌信号的分离实验,证明了本方法的有效性和可靠性.该方法可以很好的检测系统或电路中是不是产生了混沌现象,进而采取相应的措施,利用或抑制混...
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| 关 键 词： | 经验模态分解(EMD) 混沌信号 欠定盲源分离 |
Research of Underdetermined Blind Source Separation Method on Chaotic Signal |
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| CHENG Xie-feng,XU Liang,YAN Reng-yi. Research of Underdetermined Blind Source Separation Method on Chaotic Signal[J]. JJournal of Nanjing University of Posts and Telecommunications, 2011, 31(1): 29-34 |
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| Authors: | CHENG Xie-feng XU Liang YAN Reng-yi |
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| Affiliation: | CHENG Xie-feng,XU Liang,YAN Reng-yi College of Electronic Science & Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210046,China |
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| Abstract: | This paper presents an undedetermined blind source separation method for the chaotic mixed-signal.First,the characteristics of chaotic signals were discussed and the independent sun-band functions were gained by using EMD to stratify on the signal.Then the blind separation for the chaotic mixed-signal is realized by putting the independent sun-band functions into the single-channel chaotic signal.Finally,the validity and the feasibility of this method were confirmed through the separation experiment on the ... |
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| Keywords: | EMD chaotic signal undedetermined blind source separation |
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