1) orthogonal empirical mode decomposition(OEMD)
正交经验模态分解
2) EOF
经验正交分解
3) EMD
经验模态分解
1.
Bearing Malfunction Diagnosing Research and Application Based on EMD and ANN;
经验模态分解结合神经元网络在轴承故障诊断中的研究与应用
2.
Fault Recognition for High Voltage Circuit Breaker Based on EMD of Vibration Signal and Energy Entropy Characteristic
基于振动信号经验模态分解及能量熵的高压断路器故障识别
3.
The fluctuant cycles of China per capita ecological footprint and biocapacity from 1961 to 2001 is decomposed and picked-up based on empirical mode decomposition (EMD) method.
利用经验模态分解(EMD)方法分解并提取1961~2001年中国人均生态足迹与生物承载力变化的波动周期,建立具有周期性波动的非线性动力学预测模型,预测未来20年中国人均生态足迹和承载力变化,评估中国未来可持续发展进程中面临的挑战。
4) empirical mode decomposition (EMD)
经验模态分解
1.
Based on empirical mode decomposition (EMD) and back propagation (BP) neural network, a new method is proposed to identify flow pattern of oil-gas two-phase flow.
基于经验模态分解(empirical mode decomposition,EMD)和BP神经网络,提出了油气两相流流型辨识的新方法。
2.
Several representative signals are analyzed by empirical mode decomposition (EMD) method.
用经验模态分解法对几种典型信号的特征进行分析。
3.
In the paper, empirical mode decomposition (EMD) based Hilbert transform (HT), a new method for processing nonstationary signals, is applied to analyze transient signal in electric power systems.
将一种新的非平稳信号处理方法--基于经验模态分解(EMD)的希尔伯特(Hilbert)变换方法,应用于电力系统暂态信号分析中。
5) empirical mode decomposition(EMD)
经验模态分解
1.
To the bad noise interference problem occurred in the signal of pipeline defect magnetic flux leakage inspection,the empirical mode decomposition(EMD) method developed recently was used to the noise suppressing and the effective signal extraction for the signals of magnetic flux leakage inspection.
针对管道缺陷漏磁检测信号中存在严重噪声干扰的问题,将经验模态分解方法用于漏磁检测信号的噪声分离和有效信号提取,对实际测试的与输油管道材质相同且具有人为模拟缺陷的漏磁信号进行处理,结果表明,该方法可以很好地抑制噪声从而得到清晰的、表征缺陷特征的有用信号,达到与小波变换相同的处理效果,同时克服了小波方法中基函数选择困难的问题。
2.
The theory of empirical mode decomposition(EMD) is briefly introduced in the paper.
以经验模态分解(empirical mode decomposition,EMD)为基础,提出了一种基于包络线及有效值的自适应窄带干扰抑制算法,用以从噪声中提取局放信号。
3.
An approach based on empirical mode decomposition(EMD) and principal component analysis(PCA) was presented to deal with the blind source separation (BSS) problem of rotation machines in the case of nonlinear,non-stationary,noisy source mixing and the number of observed mixtures being less than that of contributing sources.
针对非线性、非稳态、含噪原始信号混合且混合信号数目小于源信号数目的旋转机械调制故障源信号盲分离问题,提出了一种基于经验模态分解(EMD)和主成分分析(PCA)相结合的方法。
6) Empirical mode decomposition
经验模态分解
1.
Approach to weak signal extraction based on empirical mode decomposition and autocorrelation analysis;
基于经验模态分解及自相关分析的微弱信号提取方法
2.
Extracting partial discharge signals of hydroelectric generating set based on empirical mode decomposition;
基于经验模态分解的水轮发电机组局部放电信号提取
3.
Frequency-Domain Resolution and Its Improvement During Empirical Mode Decomposition;
经验模态分解中的频域分辨率及其改进方法
补充资料:正交分解
高中物理力学的一种求解方法,一般是在刚上高一是会学到
将一个力沿着互相垂直的方向(x轴、y轴)进行分解的方法
从力的矢量性来看,是力f的分矢量;从力的计算来看,的方向可以用正负号来表示,分量为正值表示分矢量的方向跟规定的正方向相同,分量为负值表示分矢量的方向跟规定的正方向相反.这样,就可以把力的矢量运算转变成代数运算.所以,力的正交分解法是处理力的合成分解问题的最重要的方法,是一种解析法.特别是多力作用于同一物体时,计算起来,非常方便.
利用正交分解法求合力可分以下四步:
(1)以力的作用点为原点,建立合适的直角坐标系;
(2)将各力进行正交分解;
(3)分别求出两个坐标轴上各分量的代数和
(4)正交合成,求出合力的大小和方向.
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条