20041006

用R/S估算法计算时间序列的HURST指数(With R/S method to estimate time series HURST index)

轴承外环故障诊断，故障设置为外环局部剥落，故障特征频率为外环通过频率或倍频理论计算得到475.6Hz.(Bearing outer ring fault diagnosis, fault set to the outer ring local spalling, the failure characteristic frequency for the outer ring through the frequency or frequency theoretical calculations 475.6Hz.)

说明：  内容为《MATLAB图形图像》用到的部分程序,希望对大家有帮助!(some examples of the use of matlab)

这个压缩包括了通信系统的仿真建模原理，以及信道的模型，对初学者和有帮助！(This compression includes the principles of communication systems, simulation modeling, and channel models, for beginners and helpful!)

可以对任何数组进行概率计算，在求数组信息熵时使用(array can be of any probability calculations, an array of information for the use of entropy)

这是关于vmd变分模态分解的matlab代码，主要应用于信号的分解，数据的处理等。(This is the matlab code for VMD variational mode decomposition, which is mainly applied to signal decomposition, data processing and so on.)

说明：  采用均值聚类的方法找出径向基函数中心，并对训练数据展开预测(Mean clustering method is used to find the center of radial basis function and forecast the training data.)

fullwave rectifier model

compress2D with matlab

高斯白噪声的两种MATLAB实现方式，可以用，已经试验了(AWGN)