SMS2

　　这包括代码为“扩展”和“减少”程序,对高斯图像金字塔,探讨了作为一个紧凑的拉普拉斯金字塔图像编码”-伯特和Adelson,1983年。 　　 　　重要的应用同样的包括运动估计精度等。(This contains the code for the Expand and Reduce routines for Gaussian image pyramids, as discussed in the Paper- " The Laplacian Pyramid as a Compact Image Code"- Burt and Adelson, 1983. Important applications of the same include motion estimation etc.)

本matlab函数实现微分编码，可以处理通信信道中的偶发“倒相”现象，避免误码。(Matlab function of the differential encoding, communication channels can handle the occasional " down phase" phenomenon, to avoid error.)

fit_maxwell_pdf - Non Linear Least Squares fit of the maxwellian distribution. given the samples of the histogram of the samples, finds the distribution parameter that fits the histogram samples. fits data to the probability of the form: p(r) = sqrt(2/pi)*(a^(-3/2))*(r^2)*exp(-(r^2)/(2*a)) with parameter: a format: result = fit_maxwell_pdf( x,y,W,hAx ) input: y - vector, samples of the histogram to be fitted x - vector, position of the samples of the histogram (i.e. y = f(x,a)) W - matrix or scalar, a square weighting matrix of the size NxN where N = length(y), or 0 to indicate no weighting is needed. hAx - handle of an axis, on which the fitted distribution is plotted if h is given empty, a figure is created. output: result - structure with the fields a - fitted parameter VAR - variance of the estimation type- weighted LS or not weighted LS iter- number of iteration for the solution

说明：  matlab程序，是用牛拉法求解电力系统功率非线性方程，比较简单啊，自己也是正在学习中ing(matlab，newton )

matlab是功能强大的计算软件，作图方便，这是教程，使你入门到精通(matlab is a powerful calculation software, mapping convenience, this is the tutorial to make your entry to the master)

应用PCA（主成分分析）进行人脸识别的matlab程序，有较高成功率(PCA (Principal Component Analysis) face recognition Matlab procedures, which have a higher success rate)

先进PID控制及其MATLAB仿真详细教程(Advanced PID Control and MATLAB Simulation of a detailed tutorial)

自己编写的svm多分类1对1的程序，如果有错误，请帮忙改正(I have written more than svm classification procedure 1 to 1, if there is an error, please help correct)

说明：  Galerkin method,a numerical approximate method based on,commonly used in ordinary differential equation.

butt,cheb1,cheb2,elip四种常见的IIR滤波器使用小例子(butt, cheb1, cheb2, elip four common small example of the use of IIR filters)