PCA2Matlab

经典matlab算法，好好学习的话，收益很大的 呵呵(perfect matlab materials)

第一章 误差与范数 第二章 非线性方程（组）的数值解法 第三章 解线性方程组的直接方法第四章 解线性方程组的迭代法第五章 矩阵的特征值与特征向量的计算(Chapter norm error and the second chapter of nonlinear equations (Group) Chapter III of the numerical solution of linear equations solution methods of Chapter IV of the direct solution of linear equations Chapter V of the Code of iterative eigenvalue matrix and the characteristics of Vector Calculation)

实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。 (The DCT of image high-pass, low pass filter and compared with the Fourier transform.)

日本九州大学的机械工程学院的 Xiong Xiaogang 于 2012 年提出一种更易于实现、同时有能够描述所有摩擦力现象的摩擦力模型，其基于一个微分方程和两个代数方程。本程序是其Simulink实现，非常好用。模型原理请参考：(In 2012, Xiong Xiaogang of the school of mechanical engineering, Kyushu University, Japan proposed a much easier way. The friction model, which can describe all friction phenomena, is based on a differential equation and two algebraic equation. This program is its Simulink implementation, very good use. Model principles, please refer to:Xiong X, Kikuuwe R, Yamamoto M. A differential-algebraic multistate friction model[M]. Simulation, Modeling, and Programming for Autonomous Robots. Springer Berlin Heidelberg,2012)

这是个主要介绍利用MATLAB来绘图的经典程序，其中有很多程序可以直接借用，希望能对你有所帮助。(This is mainly introduces the use of MATLAB to the classic drawing process, in which there are many programs can be directly borrowed, hoping for your help.)

说明：  混沌计算程序源文件——包括计算Lyapunov指数的5种方法：C-C算法,最小数据量算法，G-P算法，关联维数法，互信息量法。(the original programs to calculate chaos in order to count the Lyapunov index out. Including 5 such methods: c-c method, minimum data method, G-P, mutual information method and correlation dimentional method.)

cordic算法的matlab仿真，毕设的时候写的，同时里面还有一篇介绍cordic算法的论文用来帮助理解(cordic algorithm matlab simulation, completed the set up time to write, at the same time there is also an introduction cordic algorithm of paper used to help understand)

系统辨识用，用来辨识非线性系统的参数，还可以对非线性系统进行仿真。(System identification, used to identify nonlinear system parameters, it can also nonlinear system simulation. )

matlab编写程序过程当中，经常遇到忘记或者不知道代码指令，这个目录可以方便查询代码指令(matlab programming process, frequently encountered forget or do not know the code instructions, this directory can be easily query code instructions)

说明：  蚁群算法原理及其应用PFD，希望对你们有帮助啊(Principle and Application of ant colony algorithm PFD, you would like to help ah)