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这是我们学Matlab的课件，通俗易懂，希望大家可以看看，非常有用！(This is our study of the Matlab software, user-friendly, I hope that we can see, very useful!)

球形液罐模型仿真，就是对液位就行控制，使之稳定。(Spherical tank model simulation, is the level control on the line to make it stable.)

该程序为微粒群算法与遗传算法求解pid参数整定MATLAB程序，优化结果包含参数输出与参数曲线变化图。(The program solves the PID parameter tuning MATLAB program for particle swarm optimization and genetic algorithm, and the optimization results include parameter output and parameter curve change diagram.)

功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。(Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe)

说明：  张维迎的《博弈论与信息经济学》，很能锻炼人的思维，介绍了四种类型的博弈模型(Weiying' s &quot Game Theory and Information Economics,&quot is to train a person' s thinking, describes four types of game models)

J2000 to WGS84 坐标矩阵转换(J2000 to WGS84 coordinate matrix transformation)

简单的fastICA程序，基于matlab实现盲分离，比较实用。(FastICA simple procedure, based on matlab realize blind separation, more practical.)

说明：  一种带有梯度加速的粒子群算法，可以实现多种优化工作的需要哦。(With a gradient to accelerate the particle swarm algorithm, can achieve the needs of a variety of optimization Oh.)

Control code for matlab versions prior

说明：  计算测地距离，测地距离是众多距离的一种，在高维流行数据分布空间上，欧式距离不再适用，这时就可用到欧氏距离(Computing geodesic distance, geodesic distance is a large distance, popular in high-dimensional data distribution space, the Euclidean distance is no longer applicable, then you can use the Euclidean distance)