model_perturbatii

利用状态空间求解结构的响应，速度加速度位移等响应(velocity and displacement of structure)

说明：  以股票交易为例，用SVM网络回归预测，内有说明(SVM network regression prediction, with instructions)

基于中值滤波的图像增强，不可用于医学图像增强，要存在入射反射角(Based on median filter image enhancement, not for medical image enhancement, the incident angle of reflection to exist)

说明：  滤掉低频段和高频段频率，分波段滤波，过滤掉噪声干扰，绘制功率谱密度曲线(Filter out the low and high frequency bands, filter in different bands, filter out the noise interference, and draw the power spectral density curve.)

说明：  用于故障诊断研究的vss程序代码，感兴趣的可以看看(The VSS program code for fault diagnosis research can be viewed as interesting)

matpower软件下，最优潮流程序完整版，希望对大家有用(matpower software, the optimal power flow procedures for the full version, in the hope that useful to everybody)

这是用matlab实现的一段PLS算法的程序，简单易上手！(This is the period of the program of the PLS algorithm, using matlab simple and approachable!)

此代码是用MATLAB进行对数据做FFT变换(This code is done using MATLAB FFT transform data)

说明：  读取sac数据子函数,再处理中直接调用该函数即可达到读取目的。(the code of read .sac files.)

2维的fdtd计算源程序，边界条件为pml(2-D FDTD calculation of the source, boundary conditions for the PML)