The empirical mode frequency decomposition is orthogonal and possesses good behaviour.
经验模态频率分解是正交分解,有很好的性质和频率意义。
Carrying out the improved empirical mode decomposition method utilizing the algorithm.
利用算法实现了改进后的经验模态分解方法。
A method of flow regime identification based on empirical mode decomposition was proposed.
提出了一种基于经验模式分解的气液两相流流型识别方法。
The principle of empirical mode decomposition (EMD) and concept of shape factor are introduced.
介绍了经验模态分解法(EMD)的原理及波形指数的概念。
A novel method of instantaneous phase analysis based on empirical mode decomposition is presented.
提出了基于经验模态分解的瞬时相位分析的新方法。
This paper USES Empirical Mode Decomposition method to decompose image from small-scale to large-scale.
笔者利用经验模式分解法,将图像按尺度从小到大进行分离。
This paper presents a novel method for handwritten numeral recognition based on empirical mode decomposition.
将经验模型分解方法应用于手写体数字识别,提出了一种新的识别方法。
This paper proposes a method to remove trends based on correlation matrix by empirical mode decomposition(EMD).
提出一种基于相关系数矩阵判断准则的经验模态分解去除趋势项的方法。
The stopping criteria for sifting and boundary effect are studied for Empirical Mode Decomposition(EMD) algorithm.
对经验模式分解算法中的滤波停止条件和端点延拓问题进行了研究。
Empirical Mode Decomposition (EMD) is introduced to replace time synchronous averaging of gearbox vibration signal.
探讨了应用经验模态分解代替时域同步平均分析减速器振动信号的方法。
Simulation result shows that the empirical mode decomposition method is at an advantage when denoising and improving SNR.
实验结果显示,使用经验模态分解方法在去除噪声,提高信噪比方面具有优越性。
A method for the image compression of the first residue in the Bidimensional Empirical Mode Decomposition (BEMD) is introduced.
提出一种针对二维经验模态分解第一余量图像的压缩方法。
For the end effect in the process of empirical mode decomposition, the envelope extension algorithm by using AR model is proposed.
针对经验模态分解过程存在的边界效应问题,提出了利用AR模型进行包络延拓的边界处理算法。
The reason to mode mixing in the result of empirical mode decomposition is discussed in respect of the variation of extremum series.
讨论了由于间歇信号嵌入导致经验模式分解结果出现模态混叠的现象,指出极值点序列幅值突变是产生模态混叠的根本原因。
There are two types of end effects in the empirical mode decomposition method: in the spline interpolation and in the Hilbert transform.
经验模态分解方法中,有两种端点效应:在样条插值中以及在希尔伯特变换中。
This thesis researches on the hiding information which held the image as the carrier and based on empirical mode decomposition algorithm.
本论文研究了以图像为载体,基于经验模式分解算法的信息隐藏。
This paper analyzes the principle of empirical mode decomposition method, and it analyzes key technologies and proposed an improved algorithm.
本文通过分析经验模式分解方法的原理,对其关键技术进行研究并提出了一种改进算法。
In order to improve the forecast precision, a forecasting method based on empirical mode decomposition (EMD) and data mining method is proposed.
为了提高风电场风速短期预测的精度,提出了将经验模式分解与数据挖掘方法相结合对风速时间序列进行建模预测。
A new scheme named Many-knot Empirical Mode decomposition (MEMD) of data decomposition for non-stationary data analysis is presented in this paper.
依据多结点样条函数插值理论,定义了模式函数,给出了数据分解过程。
Empirical mode decomposition (EMD) method was used to study the fluctuation of inundated area of flood disaster from 1949 to 2002 in Hunan Province.
应用经验模态分解(EMD)方法分析了湖南省1949 ~ 2002年洪涝灾害成灾面积波动情况。
This paper proposes an effective time series matching method by combining the empirical mode decomposition (EMD) with the alternative covering algorithm.
将经验模式分解和多层前向网络的交叉覆盖算法相结合,提出一种时间序列相似模式的匹配算法。
Empirical mode decomposition(EMD) is a signal processing technique to decompose data set into several intrinsic mode functions(IMF) by a sifting process.
经验模式分解(EMD)通过筛分过程将原始信号分解成若干个基本模式分量(IMF),可看作无需预设带宽的自适应高通滤波方法。
This paper investigates a new method of extracting partial discharge signals of hydroelectric generating set based on empirical mode decomposition (EMD).
提出一种基于经验模态分解(EMD)的水轮发电机组局部放电信号提取方法。
Aiming at the mode mixing problem caused by intermittency signal in the sifting process of empirical mode decomposition (EMD), a new solution is presented.
针对在经验模态分解(EMD)筛选过程中间断信号引起的模态混叠问题,提出了一种新的解决方法。
Trough case study, detail signals of dynamic deformation of buildings above old mine goaf are obtained using multiscale empirical mode decomposition method.
通过实例研究,证实采用多尺度经验模态分解可获得老采空区上方地表建筑物的动态变形细部信号。
Based on the analysis of some problems in the method of empirical mode decomposition, the algorithm of empirical mode decomposition is improved in this paper.
在分析经验模式分解存在问题的基础上,改进了经验模式分解的算法,提出用窗口平均法取代原极值包络法来计算局部均值。
The multiresolution empirical mode decomposition method of signal can be interpreted as spatial filtering based on the signal's extremum characteristic scale.
信号的多分辨经验模分解方法可以解释为以信号极值特征尺度为度量的时空滤波过程。
In order to improve the signal-to-noise of the pulsar signal, an algorithm of pulsar signal de-noising based on Empirical Mode Decomposition (EMD) is proposed.
为了提高脉冲星辐射信号的信噪比,提出了一种基于经验模态分解(EMD)的脉冲星信号去噪算法。
The analytic descriptions and theoretical explanations to the exploration of practice and empirical mode of local system reform have certain realistic significance.
对地方体制改革的实践探索和经验模式进行分析型描述和理论性解释具有一定的现实意义。
To extract the gear crack fault weak feature of locomotive running gear box on complex background, a new method of ensemble empirical mode decomposition (EEMD) and 1.
针对复杂背景下机车走行部齿轮箱齿轮裂纹故障微弱特征的提取问题,提出了总体平均经验模式分解(EEMD)与1。
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