cal_frefeature

一套完整的Nlfm 信号产生的matlab 源文件(An useful set of matlab code for generating all kinds of nlfm signal associated with four different window functions.)

阈值隐藏图像，图像通过阈值方式，把小图像隐藏到大图当中，实现信息隐藏，用于二值图像的信息隐藏(Threshold hidden image, the image by the threshold method, the small images to enlarge them hidden, to achieve information hiding for binary image information hiding)

变尺度随机共振代码，几年前用过的，很好用，喜欢的可以试试。(Variable scale stochastic resonance code, used a few years ago.)

bearing faults detection

这是2dof（pi-逆前馈加pid反馈），单纯pid反馈，单纯pi模型逆前馈对应的仿真结果。 其中系统模型采用前面根据pi模型与n4sid算法结合得到的综合模型。(This is 2 dof (PI- inverse feedforward pid feedback), pure pid feedback, pure PI inverse model feed-forward corresponding simulation results. In front of the system model using models based on PI and n4sid algorithm combined with integrated model.)

hdf5数据的读取等功能，现有hdf多为hdf4，hdf5有自身的读取和操作程序，如针对风云数据等(Read other functions hdf5 data, the existing hdf mostly hdf4, hdf5 have read and operate their own programs, such as data, for FY)

说明：  三电平逆变器基于虚拟矢量的SVPWM各区间矢量作用时间计算。(Three level inverter based on virtual vector SVPWM interval vector action time calculation.)

nihe有关实验数据与参数的拟合，得到想要的参数与模型比较(nihe relevant experimental data and fitting parameters obtained with the model parameters you want to compare)

3/4速率Trellis编码的matlab实现(3/4 rate TRELLIS matlab coding to achieve)

The book of EM numerical methods