...mposition EMD)方法与迭代滑动傅立叶分析方法结合在一起:前者将负载电流分解成一系列固有模态函数(Intrinsic Mode Function IMF),然后通过某些IMF进行适当组合,构成带通自适应滤波器,进而获得负载基波电流幅值;后者确定基波的相位.
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The EMD method and its adaptive filtering property in the process of obtaining the intrinsic mode function(IMF) were discussed.
讨论了经验模态分解方法及其在获取固有模态函数过程中的自适应滤波特性。
First we employ EMD method to decompose the crude oil prices in NYMEX, and obtain a series of intrinsic mode function (IMF), which are stationary and of strong periodicity, and a trend term.
首先利用EMD方法对NYMEX市场的原油期货价格进行分解，得到一系列平稳且具有较强周期性的本征模函数(IMF)和一个趋势项。
The energy of Intrinsic mode Function (IMF) by EMD is studied and the concept of mode energy ratio is put forwarded.
对经验模态分解得到的各模态分量能量进行了研究，提出了模态能量商的概念。
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