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matlab跟电子信息的深切联系，在电子信息的应用。(matlab deep contact with the electronic information in the application of electronic information.)

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.)

用于现代信号分析与处理课程，正交变换、K-L变换与离散余弦变换。(For modern signal analysis and processing programs, orthogonal transform, KL transform and discrete cosine transform.)

this surce code is imsol matlab

Solving Optimal Power Flow with Voltage Constraints using MATLAB Optimization Toolbox

MATLAB_SIMULINK通信系统建模与仿真分析(MATLAB_SIMULINK communications system modeling and simulation analysis)

codes for image proc

数字PID的matlab仿真程序，针对刘金琨的先进PID控制的matlab仿真，里面的部分程序进行了修改 第六章(Digital PID of matlab simulation program for Liu Jinkun matlab advanced PID control simulation, which part of the program were modified Chapter)

MST算法的matlab实现，可应用于无线传感器网络(Matlab implementation of the MST algorithm)

这是我意外发现的一个非常好的学习资料，希望对新手学习matlab有帮助(This is what I accidentally found a very good learning materials, hope to help novice to learn matlab)