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emdfenjie
- 对采集到的振动信号进行EMD分解，得到一系列频率不同的经验模态函数IMF分量，可以用来滤波和提取原信号的特征。-The collected vibration signals of EMD, get a series of different frequency components of IMF empirical mode function can be used to filter and extract features of the original signal.
421
- 针对齿轮滚动轴承等的早期损伤类故障, 提出将小波包分解作为包络分析的前置处理手段以提取振动信号的故障信息特征 。 在简述小波包基本原理的基础上, 通过仿真信号, 对振动信号的具体处理过程进行分析, 并对可能遇到的问题, 提出处理办法, 然后应用于诊断实例 。 -Early damage fault for rolling bearings and other gear, the proposed wavelet packet decomposition as pre-processing mea
433
- 融合小波能谱熵和支持向量机ＳＶＭ的特点提出了基于小波能谱熵的ＳＶＭ故障诊断方法． 利用转子试验台对转子典型振动故障进行模拟并采集振动数据提取其振动信号的小波能谱熵作为特征向 量-Fusion wavelet energy entropy and support vector machine SVM is proposed based on the characteristics of wavelet energy entropy SVM fault diagnosis method. U
dual-tree
- 首先将非平稳的故障振动信号进行双树复小波包分解，得 到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量 进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实 现了故障特征信息的提取。-In view of the above situation, a new fault diagnosis method is proposed based on dual-tree complex wa
energy-leakage--dual-tree
- 首先根据高斯白噪声频率充满整个频带的特性，通过双树复小波包变换对高斯白噪声进行分解，利用频带能量泄漏的定量分析方法，验证了双树复小波包变换具有较低的频带能量泄漏特性；其次利用双树复小波包变换逐层分解信号，对每层分解所得分量求其FFT谱的峭度，得到基于双树复小波包变换的谱峭度图，根据图中峭度最大的原则，可以自动准确的选择信号分解最佳层数和最佳分量；最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中，对齿轮故障振动信号进行分析，选择最佳分解层数和分量后利用希尔伯特包络解调，有效准确地
xiaobobaoyuzhijiangzao
- ：提出一种基于对偶树复小波块阈值的信号降噪方法，并将其成功应用于机械故障诊断中。机械设备的振动信号都或多或少地含有噪声，导致弱故障信息的提取一直是故障诊断的难点和热点。提出的降噪方法充分利用对偶树复小波变换的平移不变性和块阈值法的更优估计特性，可以获得比常规的小波降噪方法以及基于常规离散正交小波变换的 NeighBlock 降噪法更高的信噪比， 不仅能有效抑制高斯白噪声， 还能够去除冲击信号中的脉冲噪声。-：A denoising method of block thresholding bas
xiaoboshenjingwangluo
- 提出了采用小波包的方法对供暖双吸式离心水泵轴承振动信号进行去噪和提取表征 相应轴承故障的频带能量 并采用 BP 神经网络进行训练和故障识别 通过 MATLAB 进行了仿真经试验验证该方法能够有效地识别出轴承故障-The wavelet package is adoptted to De-noise and extract band energy that represent bearing fault. and the BP neural network is adopting to t
gege
- 小波包分析提取振动信号中的分解小波包分析提取振动信号中的分解-Wavelet packet analysis vibration signal decomposition wavelet packet analysis vibration signal decomposition
zhengdongxinhao
- 对机械类振动信号处理，时域内特征值得提取，均值、均方根、绝对平均幅值、峭度等-For mechanical vibration signal processing, time domain feature extraction worth, mean, RMS, mean absolute amplitude, kurtosis, etc.
tezhengtiqu
- 用matlab程序对正常和故障的风电机组振动信号进行特征提取，提取时域的16个特征值-Using matlab program for normal and faulty wind turbine vibration signal feature extraction, extraction time domain 16 eigenvalues
Mechanical-fault-diagnosis
- 介绍机械振动信号的各种特征提取方法以及故障诊断算法的相关论文-Mechanical vibration signal feature extraction and fault diagnosis
Choiwilliams
- 计算振动信号的Choi-Williams分布，通过对照轴承故障特性频率可知，轴承的外圈发现了故障，完成了对外圈的故障特征提取。-The Choi-Williams distribution of the vibration signal is calculated. Through the comparison of the bearing fault characteristic frequency, the outer ring of the bearing is found to be f
wheel-treadmonitoring
- 城轨车辆轮对踏面故障在线监测系统，基于振动检测法的轮对踏面故障监测系统，通过傅里叶变换、小波包分析对釆集到的振动信号进行分析获得信号的特征,研究了基于短时能量判断的踏面故障特征提取算法。-On line monitoring system for wheel tread of urban rail vehicles, based on the vibration detection method of wheel tread fault monitoring system, through th
finggan_V6.4
- 小波包分析提取振动信号中的特征频率，考虑雨衰 阴影 和多径影响，供做算法研究人员参考。- Wavelet packet analysis to extract vibration signal characteristic frequency, Consider shadow rain attenuation and multipath effects Algorithm for researchers to do reference.
kiuseng
- 利用matlab GUI实现的串口编程例子，对于初学者具有参考意义，小波包分析提取振动信号中的特征频率。- Use serial programming examples matlab GUI implementation, For beginners with a reference value, Wavelet packet analysis to extract vibration signal characteristic frequency.
qaineng_v23
- matlab开发工具箱中的支持向量机，小波包分析提取振动信号中的特征频率，经典的灰度共生矩阵纹理计算方法。- matlab development toolbox support vector machine, Wavelet packet analysis to extract vibration signal characteristic frequency, Classic GLCM texture calculation method.
fangjou
- 可以实现模式识别领域的数据的分类及回归，小波包分析提取振动信号中的特征频率，通过matlab代码。- You can achieve data classification and regression pattern recognition, Wavelet packet analysis to extract vibration signal characteristic frequency, By matlab code.
fiebang
- 小波包分析提取振动信号中的特征频率，通过matlab代码，正确率可以达到98％。- Wavelet packet analysis to extract vibration signal characteristic frequency, By matlab code, Accuracy can reach 98 .
jingfui_v36
- 直线阵采用切比学夫加权控制主旁瓣比，做视觉测量的上位机代码,小波包分析提取振动信号中的特征频率。- Linear array using cut than learning laid upon the right control of the main sidelobe ratio, Do Vision Measurement PC code, Wavelet packet analysis to extract vibration signal characteristic frequency
jinghai
- 小波包分析提取振动信号中的特征频率，仿真效果非常好，采用热核构造权重。- Wavelet packet analysis to extract vibration signal characteristic frequency, Simulation of the effect is very good, Thermonuclear using weighting factor.