| 基于折线包络的经验模态分解方法 |
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| 引用本文： | 杨彩红,梁建文,张郁山.基于折线包络的经验模态分解方法[J].震灾防御技术,2013,8(3):221-230. |
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| 作者姓名： | 杨彩红 梁建文 张郁山 |
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| 作者单位： | 1. 中国地震灾害防御中心,北京,100029
2. 天津大学土木工程系,天津,300072 |
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| 基金项目： | 北京市自然科学基金项目（8112029）和国家自然科学基金项目（51178436）资助 |
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| 摘 要： | 提出了一种基于折线包络的经验模态分解方法.以一个具有明确解析表达式的信号验证了该方法所得结果的意义,并讨论了该方法分解E1 Centro波所得固有模态分量(IMF)的波形与频谱特征.
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| 关 键 词： | Hilbert-Huang变换 经验模态分解 固有模态分量 "筛分"处理 |
| 收稿时间： | 2013/3/26 0:00:00 |
Folding-line-envelope-based Empirical Mode Decomposition Method |
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| Yang Caihong,Liang Jianwen and Zhang Yushan.Folding-line-envelope-based Empirical Mode Decomposition Method[J].Technology for Earthquake Disaster Prevention,2013,8(3):221-230. |
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| Authors: | Yang Caihong Liang Jianwen and Zhang Yushan |
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| Institution: | China Earthquake Disaster Prevention Center, Beijing 100029, China;Civil Engineering Department of Tianjin University, Tianjin 300072, China;China Earthquake Disaster Prevention Center, Beijing 100029, China |
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| Abstract: | A folding-line-envelope-based empirical mode decomposition method is proposed in this paper. We discussed the significance of the results of this method is validated by a signal with definite analytical expression, and the characteristics of the waveforms and spectra of the intrinsic mode functions (IMF) resulted by decomposing the El Centro waveform by using this method. |
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| Keywords: | Hilbert-Huang transform Empirical mode decomposition Intrinsic mode function Sifting process |
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