s-function-study

数学建模方法实现拟合与插值，利用matlab模拟此功能(Fitting Interpolation)

detecting ande measuring house space using google satelite image as input

高斯混合模型K均值算法matlab源程序用于说话人识别中(Gaussian mixture model K-means algorithm matlab source code for speaker recognition)

说明：  基于动态切换函数的动态滑模控制，二阶系统仿真(Dynamic sliding mode control based on dynamic switching function，The second order system simulation)

说明：  本程序实现了短数据序列不同窗函数的welch功率谱估计，然后又求了他们的平均标准差，从而判断各个窗函数的优劣。只要稍作修改就能实现不同信噪比下的功率估计，同时也可以实现长数据序列的估计。(This procedure has a short data series of different welch window function power spectrum estimation, and then seek their average standard deviation, and thus to determine the merits and demerits of each window function. As long as we can with some slight modifications under different signal to noise ratio power estimate, but also the realization of a long data sequence can be estimated.)

对简单闭环系统的PID控制参数进行优化，得到最佳的控制效果。使用时将该文件夹设为matlab默认文件夹，用simulink打开.mdl文件，在命令行窗口输入.txt文档中命令，可以得到优化后的P、I和D参数。(The PID control parameters of the simple closed-loop system are optimized to obtain the best control effect. With using these codes, the folder must be set as the default folder of matlab, then open the. MDL file, and input the commands of . TXT document in the command line window. The optimized P, I and D parameters will be obtained.)

Simulated annealing MATLAB code with an example

基于matlab实现的循环谱估计算法，可以对具有循环平稳特点的信号进行参数估计，如直扩信号和周期调制信号(Matlab-based spectrum estimation algorithm to achieve the cycle, you can have the characteristics of the signal cyclostationary parameter estimation, such as the DS signal and the periodic modulation)

gmrp 二层组播协议， 在电力行业应用广泛，其中设计交换芯片的二层组播表项的操作需对应相应的交换芯片。(GMRP， two layer multicast protocol, widely used in power industry, the design of two layer exchange chip multicast list to the corresponding switching chip corresponding operation.)

ESPRIT算法，MUSIC算法，一阶前向预测算法比较(ESPRIT algorithm, MUSIC algorithm, first-order forward prediction algorithm comparison)