| 基于EMD方法的混沌信号中周期分量的提取 |
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| 引用本文： | 李鸿光,孟光.基于EMD方法的混沌信号中周期分量的提取[J].应用数学和力学,2006,27(2):199-203. |
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| 作者姓名： | 李鸿光 孟光 |
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| 作者单位： | 上海交通大学,振动、冲击、噪声国家重点实验室,上海,200030 |
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| 摘 要： | 提出一种从DLffing振子产生的混沌信号中提取谐波分量的方法．依据任何信号由不同的同有简单振动模态组成的概念，利用经验模式分解（EMD）方法，将混沌信号分离为不同的内在模态函数（IMF），并在特定参数下从中分解出单一频率成分的谐波信号，从而成功地将混沌信号和谐波分甚分离．仿真实验都表明该方法非常有效．
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| 关 键 词： | 混沌信号 信号处理 周期分量 经验模式分解(EMD) Duffing方程 |
| 文章编号： | 1000-0887（2006）02-0199-05 |
| 收稿时间： | 2004-02-01 |
| 修稿时间： | 2005-10-25 |
Harmonic Component Extraction From a Chaotic Signal Based on EMD Method |
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| LI Hong-guang,MENG Guang.Harmonic Component Extraction From a Chaotic Signal Based on EMD Method[J].Applied Mathematics and Mechanics,2006,27(2):199-203. |
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| Authors: | LI Hong-guang MENG Guang |
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| Abstract: | A novel approach of signal extraction of a harmonic component from a chaotic signal generated by a Duffing oscillator is proposed.Based on empirical mode decomposition(EMD) and concept that any signals were composed of a series of the simple intrinsic modes,the harmonic components were extracted from the chaotic signals.Simulation results show the approach is satisfactory. |
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| Keywords: | chaotic signal signal processing harmonic component empirical mode decomposition(EMD) Duffing function |
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