Matlab-based-learning

说明：  用matlab实现一个旋转的地球，地球上可以看到海洋以及高地的差别(Using MatLab program to make a AVI file which playing a movie with Rotation Earth, which have topograph.)

说明：  matlab语言常用各种命令的集合，及中文注释，按字母顺序排列，便于查找(matlab language commonly used set of various commands, and Chinese translations, in alphabetical order, easy to find)

说明：  一阶自回归滑动序列，随机过程作业，计算其自相关函数。(The first order autoregression sliding sequence of operations of stochastic processes, to calculate the autocorrelation function.)

PLL的设计与频率相应 清华大学的讲义 基于低通滤波器的设计绘制开环增益波特图(PLL DESIGN AND FREQUENCY GENERATION Draw open-loop gain Bode plot based on LPF design)

一个三相电机方波120逆变程序 占空比 未用到spwm(A Square Wave 120 Inverter Program for Three-phase Motor Duty cycle Unused SPWM)

zigbee network definition in matlab

最新：先进PID控制及其MATLAB仿真（第二版），附带书本例子源码，值得学习！(Latest: advanced PID control and MATLAB (second edition), with examples of source books, it is worth learning!)

利用Matlab提取图片中的数据 从事科研或者工程的人员在文档撰写过程中，常需要将文献中的曲线与自己的结果对比，为获取原始数据，一种常用的办法是手动描点，即将原始曲线放大然后打印出来，选取一定数量的点，读出其横纵坐标，然后重绘。对于较为平坦的曲线，这种方法当然可行，但当曲线数量增加，曲线变化复杂，这种方法工作量可想而知。前段时间由于原始数据丢失，仅剩几十幅图片，本人尝试过手动描点，经历几个小时奋战，实在无法继续，索性转向matlab，借助其强大的数据处理能力，编写了两个GUI的小软件image2data、data_poly提取数据，如今大功告成，遂于大家分享。(Using Matlab to extract picture data in scientific research or engineering personnel in the process of writing documentation, often need to curve in the literature comparing the results to obtain the original data, a common approach is described in the manual, is about the original amplification curve and then print it out, select a certain number of points, read out its horizontal and vertical coordinates, and then redraw. For a flatter curve, this approach is of course possible, but when the increase in the number of curves, the complexity of the curve, this method can imagine the workload. Some time ago due to the loss of original data, except for the dozens of pictures, I tried manually tracing point, after several hours of fighting, I can not continue to simply turn to Matlab, with its powerful data processing capabilities, the preparation of two GUI software image2data, data_poly extract data, and now you' re done, then share with you.)

了解隐马尔科夫模型HMM的概念、组成和需要解决的问题；通过matlab分析和三个基本算法分析读研和就业问题：forward算法、Viterbi算法和Baum-Welch算法(Understand the concept of Hidden Markov Model HMM, composition and problems to be solved matlab analysis by three basic algorithms: forward algorithm, Viterbi algorithm and Baum-Welch algorithm)

说明：  《MATLAB工程数学》用到的部分程序，比较全的。(&quot MATLAB Engineering Mathematics&quot Part of the procedure used to compare the sound.)