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经验模态分解(EMD)中边界处理的新方法

Keywords: 半周期半对称延拓法,希尔伯特-黄变换(HHT),经验模态分解(EMD),信号处理,边界问题

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Abstract:

在深入研究和分析希尔伯特-黄变换(HHT)方法的基础上,对信号提出了半周期半对称延拓算法,并以此来处理经验模态分解中存在的边界误差问题.通过信号模拟试验,并与EMD方法的结果作比较,检验了该方法的有效性和精度.

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