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摘要: |
提出了一种基于掩膜信号法的端点延拓新方法,可以有效地解决产生于希尔伯特-黄变换中的端点效应;对信号进行外延后进行EMD,然后利用掩膜信号对IMF分量进行延拓后再进行希尔伯特变换;仿真实验证实了该方法的有效性。 |
关键词: 希尔伯特-黄变换 掩膜信号 经验模态分解 |
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An Extending Method Based on the Masking Signal |
LI Cui-wei; ZHAO Lin
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Abstract: |
This paper gives a new extending method based on the masking signal.It can effectively restrain the end effect produced in Hilbert-Huang.We extend the data before using EMD,and then we extend the IMF based on making signal before using Hilbert transformation.Simulation and experiment reuslts proved its effectiveness. |
Key words: Hilbert Huang transformation masking signal empirical mode decomposition |