question4

下雨的falsh源码，简单高效的程序。一学就会。(Rain falsh source, simple and efficient procedure.)

VMD变分模态分解，vmd函数是通用的，vmd_test是1s专用的，所以只要改test文件，要设一个时间(VMD variable modal decomposition, vmd function is universal, vmd_test is dedicated to 1s, so just change the test file, set a time)

绘制苯环的matlab源文件，对于精确绘图有一定的价值(Drawing phencynonate the matlab source file, for AccuDraw a certain value)

应用差分方程求解波动方程，可以设定边界条件(Application of differential equation solving the wave equation, boundary conditions can be set)

扩展卡尔满滤波算饭与无味滤波算法的比较 结果是无味滤波略微胜出(EKFvsUKF)

灰色系统与模糊数学、黑箱方法的区别，灰色系统预测GM（1，1）模型，GM（1，N）模型，灰色系统模型的检验，应用举例。(Grey and fuzzy math, the difference between black-box approach, Grey forecasting GM (1,1) model, GM (1, N) model, gray system model testing, application examples.)

Arquivo para fazer convolucao

RANSAC工具箱，内容全面，功能强大，非常适用。 (RANSAC Matlab ToolBox with demos.The materials are comprehensive and it s powerful and applicable.)

对声音中嵌入的图像进行提取，此图像时矩阵排列(Embedded in the sound image was extracted from a matrix of this image)

说明：  这是雷达杂波幅度符合对数正态分布的仿真程序，功率谱分布符合高斯谱。(This is consistent with the range of radar clutter lognormal distribution of the simulation program, power spectrum consistent with the Gaussian spectral distribution.)