• 采用经验模式分解(EMD)小波分析结合方法探讨结构响应数据信号,进行建筑结构损伤检测诊断

    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.

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  • 经验模式分解主要思想类似小波变换分解结果高频低频分布的,噪声主要集中层。

    EMD similars the wavelet transforms, the decomposition result is from high frequency to the low frequency distribution, namely the noise mainly concentrates in first several.

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  • 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提取问题,提出总体平均经验模式分解(EEMD)1

    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.

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  • 提出了一种基于经验模式分解的气液两相流流识别方法

    A method of flow regime identification based on empirical mode decomposition was proposed.

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  • 经验模式分解算法中的滤波停止条件端点延拓问题进行了研究。

    The stopping criteria for sifting and boundary effect are studied for Empirical Mode Decomposition(EMD) algorithm.

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  • 提出一种基于二维经验模式分解(BEMD)的图像水印嵌入算法,完成水印的嵌入提取

    This paper proposes an image processing method which is based on Bidimensional Empirical Mode Decomposition (BEMD). BEMD is applied in watermark embedding and extraction.

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  • 虽然HVD方法希尔伯特变换HHT)方法这两者均希尔伯特变换为基础,HVD方法避免了复杂经验模式分解EMD)过程。

    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).

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  • 本文通过分析经验模式分解方法原理,对其关键技术进行研究提出了一种改进算法

    This paper analyzes the principle of empirical mode decomposition method, and it analyzes key technologies and proposed an improved algorithm.

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  • 经验模式分解多层前向网络的交叉覆盖算法结合,提出时间序列相似模式匹配算法。

    This paper proposes an effective time series matching method by combining the empirical mode decomposition (EMD) with the alternative covering algorithm.

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  • 本文基于经验模式分解理论提出了一种新的分割方法

    This paper proposes a new image segmentation method based on the theory of EMD.

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  • 论文研究了以图像载体基于经验模式分解算法信息隐藏

    This thesis researches on the hiding information which held the image as the carrier and based on empirical mode decomposition algorithm.

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  • 由于现实中的信号多为非平稳非线性信号,经验模式分解及其应用成为近年国内外热门研究课题

    As the magority of reality signals is non-stationary and nonlinear signals, empirical mode decomposition and its application has become a hot research topic at home and abroad in recent years.

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  • 研究结果表明基于经验模式分解分析方法可以有效地提取平稳故障特征信号一种适合于非线性信号处理的方法。

    The experiment result shows that the time-frequency method based on EMD can effectively extract the feature of unbalanced fault signal and is proper for non-frequency modulation signal procession.

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  • 为了提高风电场风速短期预测精度提出了经验模式分解数据挖掘方法结合风速时间序列进行建模预测

    In order to improve the forecast precision, a forecasting method based on empirical mode decomposition (EMD) and data mining method is proposed.

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  • 分析经验模式分解存在问题基础,改进了经验模式分解算法提出用窗口平均取代原极值包络法来计算局部均值。

    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.

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  • 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

    Empirical mode decomposition(EMD) is a signal processing technique to decompose data set into several intrinsic mode functions(IMF) by a sifting process.

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  • 讨论由于间歇信号嵌入导致经验模式分解结果出现现象,指出极值序列幅值突变产生模态混叠根本原因

    The reason to mode mixing in the result of empirical mode decomposition is discussed in respect of the variation of extremum series.

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  • 为了避免经验模式分解(EMD)过程中不同时间尺度函数间模式叠,采用基于高斯噪声加入经验模式分解方法,应用于旋转机械故障诊断

    The EMD added Gauss white noise is proposed to avoid mode mixing of different time-scale IMF, and is applied in fault diagnosis for rotating machine.

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  • 应用经验模式分解(E MD)方法分析抽油机系统效率变化趋势项。讨论EMD方法的端点效应

    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.

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  • 论述了经验模式分解EMD信号分解原理基础上,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思路策略。

    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.

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  • 研究了强噪声混合条件下微弱信号经验模式分解EMD问题提出了一种基于随机共振降噪的EMD分解方法

    To deal with this problem, comparison is made between the empirical mode decomposition(EMD) and the wavelet method in terms of signal trend extraction.

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  • 已有经验模式分解过程中,由于常用三次样条插值拟合信号上下包络,因此时常会出现边缘效应,从而影响信号处理质量

    Cubic spline interpolation is used to create the upper and lower envelopes in traditional EMD process, which has worse behavior at the edges, and influences the quality of signal process.

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  • 讨论了由于间歇信号嵌入导致经验模式分解结果出现现象,指出极值点序列幅值突变产生模态混叠的根本原因。

    Aiming at the mode mixing problem caused by intermittency signal in the sifting process of empirical mode decomposition (EMD), a new solution is presented.

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  • 然后应用SVR方法系统效率测试原始数据进行双边延拓,对延拓后数据信号进行经验模式分解

    The comparison of the test data with measurement data shows that the regression and prediction with the SVR method are highly accurate.

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  • 然后应用SVR方法系统效率测试原始数据进行双边延拓,对延拓后数据信号进行经验模式分解

    The comparison of the test data with measurement data shows that the regression and prediction with the SVR method are highly accurate.

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