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Harmoic signal extraction from chaotic interference based on empirical mode decomposition
Author(s): LI Hongguang, MENG Guang
Pages: 2069-
2073
Year: 2004
Issue:
7
Journal: ACTA PHYSICA SINICA
Keyword: 经验模式分解; 混沌; 信号处理;
Abstract: 由混沌信号和谐波信号组合而成的复杂信号的分离方法一直受到关注.利用经验模式分解方法,依据任何信号由不同的固有简单振动模态组成的概念,将由混沌信号和谐波信号组合而成的复杂信号分离为不同的内在模态函数,并从中分解出谐波信号.通过利用Duffing方程产生的混沌信号进行的仿真实验,结果都表明该方法在一定参数范围内非常有效.
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