pratial-metheds-of-optimiazation

编写程序定义一个vector对象，其每个元素都是指向string类型的指针，读取该vector对象，输出每个string的内容及其相应的长度。(Write a program to define a vector object, which each element is a pointer pointing to the string type, reads the vector object, the output of each string and the corresponding length.)

grid connected power system

6根杆四个节点，建立有限元模型，进行受力刚度等分析(Six strokes to four nodes, the establishment of the finite element model for stress analysis of stiffness, etc.)

说明：  matlab小波包去噪举例，对初学者很有用的一个短程序(matlab wavelet packet denoising for example, very useful for beginners a short program)

演示红色小球沿一条封闭螺线运动的实时动画。(Red ball shows a closed spiral motion along the real-time animation.)

一篇国外的风力机非线性控制文章，很有参考意义。(A foreign wind turbine nonlinear control article, very useful.)

这是<matlab程序设计教程>的书籍源代码。(this is the book code of matlab program design course)

详细介绍了MATLAB的基础知识，尤其增加了simulink部分，非常适合电子类专业学生(Details the basics of MATLAB, simulink some increase in particular is very suitable for electronic students)

最新的去噪算法，优点：速度快，去噪效果好，适合实时性要求高的去噪中。(The latest de-noising algorithm advantages: speed, good de-noising effect, suitable for demanding real-time de-noising.)

an investigation on use of chaotic sequence in DS-CDMA. The DS-CDMA systems offer physical layer security without the need for a significant increase in computation or power requirements. Nowadays, DSCDMA has been used widely. These systems suffers from multiple access interference because of other users transmitting in the cell, channel inter symbol interference and additive white Gaussian noise. Codes have an effective role in DSCDMA system, so M-sequences; gold sequences have been used as spreading codes in DS-CDMA. These sequences by shift registers and periodic in nature are developed. However, these sequences are not enough and also limit the security. This paper presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences by chaotic maps are generated.