ch3_matlab_ex

说明：  matlab编程例子，包括数值分析、绘图以及其他的一些高级应用。(matlab programming examples, including numerical analysis, mapping and other advanced applications.)

pca（主成分分析）matlab实现，可以有效的提取数据的主元成分，降低数据矩阵的维数。(pca (Principal Component Analysis) Matlab implementation, can effectively extract data in the main ingredients, reduce the dimension of the data matrix.)

MATLAB中绘图代码，可以帮助初学者提高绘图能力，(MATLAB drawing code, can help beginners improve drawing ability)

用于求解并绘制两个直扩信号的二维循环相关函数及对应二维图(two dimensional circle correlation of two direct sequence spread spectrum signals )

这是matlab的入门及提高教程，便于初学者从基础开始学期，讲解细致。(This is a matlab entry and improve the tutorial, easy for beginners to start with the basics semester, explain meticulous.)

FFA（快速折叠算法），实现噪声中的周期信号检测，及周期估算(FFA (fast folding algorithm), the realization of the periodic signal in noise detection, and cycle estimates)

interactive area plot

files needed to read from text and to update output channels

分形样条和小波的源程序,使用matlab代码(Fractal spline and wavelet source, the use of matlab code)

用matlab仿真模糊控制器，有一定的帮助(fuzzy pid controller)