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。
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。
The use of empirical mode decomposition (EMD) method and wavelet analysis in combination is explored for the detection of changes in the structural response data from structural damage diagnosis.
采用经验模式分解(EMD)与小波分析相结合的方法探讨结构响应数据信号,进行建筑结构损伤检测诊断。
On the basis of the traditional vibration signals process method for the rolling bearing, the empirical mode decomposition (EMD) were applied in the fault diagnosis of the rolling bearing.
在分析了传统滚动轴承的振动信号处理方法的基础上,将经验模态分解法(EMD)应用到滚动轴承的故障诊断中来。
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。
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。
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。
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。
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) 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。
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。
The proposed HVD method was based on the Hilbert transform(HT), just as Hilbert-Huang transform(HHT), but did not involve complicated empirical mode decomposition(EMD).
虽然HVD方法和希尔伯特黄变换(HHT)方法这两者均以希尔伯特变换为基础,但HVD方法避免了复杂的经验模式分解(EMD)过程。
This paper describes a method to extract the low frequency component from rotor startup signal based on empirical mode decomposition, which overcomes the difficulties of traditional filter methods.
针对传统滤波方法处理非平稳信号的不足,提出利用经验模态分解法来处理转子启动信号,通过此方法的自适应滤波特性来提取这类信号中的低频分量。
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。
We apply the empirical mode decomposition (EMD) method to analyzing the trend of change in the efficiency of an oil well system and deal with the end effects of the EMD.
应用经验模式分解(E MD)方法分析抽油机系统效率变化的趋势项。讨论了EMD方法的端点效应。
The end effects of empirical mode decomposition (EMD) are discussed and the end effects are restrained by the method. The results of EMD in both signals are analyzed by three ways.
在论述了经验模式分解(EMD)信号分解原理的基础上,分析了其存在的边缘效应,并提出了通过添加极值点抑制边缘效应的思路和策略。
A prediction method based on support vector empirical mode decomposition (SVEMD) is proposed to deal with the non-linearity and non-stationarity of failure rate data.
针对故障率时间序列的非线性与非平稳特性,提出一种基于支持向量经验模态分解(SVEMD)的预测方法。
Combined the advantage of empirical mode decomposition (EMD) and principle component analysis (PCA), a blind separation method of rolling bearing faults is proposed based on EMD and PCA.
结合经验模态分解和主分量分析各自的优点,提出了一种基于EMD -PCA的轴承故障源的盲分离方法。
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。
To deal with this problem, comparison is made between the empirical mode decomposition(EMD) and the wavelet method in terms of signal trend extraction.
研究了强噪声混合条件下微弱信号的经验模式分解(EMD)问题,提出了一种基于随机共振降噪的EMD分解方法。
A new method was provided based on the empirical mode decomposition (EMD) to solve the difficulties of infrared image dim small target detection in complex background of sky and sea.
针对红外图像中的小目标检测,提出了一种利用经验模态分解(EMD)提取海空背景下红外弱小目标的新方法。
With the problem of noise disturbance in leak detection and location of pipeline, a signal process method based on empirical mode decomposition (EMD) and cross-correlation was presented.
针对长输管道泄漏检测与定位中噪声干扰问题,提出了一种基于EMD分解和相关分析的管道泄漏检测与定位方法。
With the problem of noise disturbance in leak detection and location of pipeline, a signal process method based on empirical mode decomposition (EMD) and cross-correlation was presented.
针对长输管道泄漏检测与定位中噪声干扰问题,提出了一种基于EMD分解和相关分析的管道泄漏检测与定位方法。
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