PIDchap1_21

this is matlab code for estimating the static linear system with Least Squre that is written by matlab 7.0. Here we want to estimate the below function: 1 - u^2 + 2*u^3 +u^5 +3*u^7 these are 2 files : without noise and with noise finally,there are plots for showing results.

GM(1,1),用于预测数据变化趋势，基于灰度理论的。。。(GM (1,1), used to predict the data trend, based on gray theory. . .)

M/M/C模型的呼叫过程阻塞概率的仿真 Simulation M / M / C call blocking probability model(Simulation M/M/C call blocking probability model)

简单函数优化的遗传算法程序，遗传算法从问题解的串集开始搜索，而不是从单个解开始。这是遗传算法与传统优化算法的极大区别。传统优化算法是从单个初始值迭代求最优解的；容易误入局部最优解。遗传算法从串集开始搜索，覆盖面大，利于全局择优。(A genetic algorithm program optimized by simple functions)

主流的人脸识别识别算法pca和lda的融合，将pca和lda方法的优点进行了融合补充的互相之间的不足(Mainstream recognition algorithm for face recognition pca and lda integration of the pca and lda method has the advantage was integration between each other enough to add)

说明：  （拟合） 用给定的多项式，y=x3-6x2+5x-3，产生一组数据(xi,yi，i=1,2,…,n),再在yi上添加随机干扰(可用rand产生(0,1)均匀分布随机数,或用rands产生N(0,1)分布随机数)，然后用xi和添加了随机干扰的yi作的3次多项式拟合，与原系数比较。 如果作2或4次多项式拟合，结果如何？ ((Fitting) with a given polynomial, y = x3-6x2+5 x-3, generated a set of data (xi, yi, i = 1,2, ..., n), then add a random disturbance yi ( can be generated rand (0,1) uniformly distributed random number, or rands generated N (0,1) distribution of random numbers), and then added with xi and yi for random interference of the 3 times polynomial fitting, and the original coefficient. If 2 or 4 times for polynomial fitting, the result?)

对数据进行reof处理，得到数据的空间模态和时间系数(Matlab function of reof)

国外信号处理图书《参数估计与逆问题》的配套程序(<parameter estimation and inverse problem> 2nd Edition Author:Richard C Aster)

光学matlab仿真： 平面波和球面波干涉(Optical matlab simulation: a plane wave and spherical wave interference)

this coding use for students who use matlab steganography. the code will be highly used in recent times.