遗传算法

A SIMPLE BUT USFUL 2D FDTD MATLAB CODE2(USFUL 2D FDTD MATLAB CODE2)

这是模式识别中最小错误率Bayes分类器设计方案。 自行完善了在不同先验概率的条件下，男、女错误率和总错误率的统计，放入各个数组当中。 全部程序由主函数、最大似然估计求取概率密度子函数、最小错误率贝叶斯分类器决策子函数三块组成。 调用最大似然估计求取概率密度子函数时，第一步获取样本数据，存储为矩阵；第二步对矩阵的每一行求和，并除以样本总数N，得到平均值向量；第三步是应用公式（3-43）采用矩阵运算和循环控制语句，求得协方差矩阵；第四步通过协方差矩阵求得方差和相关系数，从而得到概率密度函数。 调用最小错误率贝叶斯分类器决策子函数时，根据先验概率数组，通过比较概率大小判断一个体重身高二维向量代表的人是男是女。 主函数第一步打开“MAIL.TXT”和“FEMALE.TXT”文件，并调用最大似然估计求取概率密度子函数，对分类器进行训练。第二步打开“test2.txt”，调用最小错误率贝叶斯分类器决策子函数，然后再将数组中逐一与已知性别的数据比较，就可以得到不同先验概率条件下错误率的统计。 (This is the minimum error rate pattern recognition Bayes classifier design. Self- improvement prior probability in different conditions , male , female and total error rate error rate statistics , into which each array . All programs from the main function , maximum likelihood estimation subroutine strike probability density , the minimum error rate Bayesian classifier composed of decision-making three subfunctions . Strike called maximum likelihood estimate probability density subroutine , the first step to obtain the sample data , stored as a matrix the second step of the matrix, each row sum , and divided by the total number of samples N, be the average vector third step is to application of the formula ( 3-43 ) using matrix and loop control statements , obtain the covariance matrix fourth step through the variance-covariance matrix and correlation coefficient obtained , resulting in the probability density function . Call the minimum error rate decision Functions Bayesian)

MUSIC 侧向仿真 MATLAB 仿真 (MATLAB simulation of the lateral simulation MUSIC)

讲述了matlab的主要功能和应用等等，讲解很详细到位，欢迎下载(matlab code)

Basics of rotating electrical machines in matlab....the file is given in pdf

pattern recognition classifiers in Matlab code

说明：  matlab系统仿真实例教程，ch10\m10_5.rar(examples of system simulation matlab tutorial, ch10 \ m10_5.rar)

该程序是幅值谱中校正频谱峰值的比值校正法，可以自设定校正谱峰值的个数，同时还可以校正相位，校正的结果很准确。(The program is corrected spectrum peak in the amplitude spectrum ratio correction method, since setting the number of correction of spectral peaks, but also can be corrected very accurate phase correction results.)

该部分MATLAB代码是计算粒子速度分布仿真代码，并将结果进行图形化(calculate matlab code)

利用平面波展开法来计算完整光子晶体能带图的两个程序，比较好用(Using the plane wave expansion method to calculate the complete photonic bandgap diagram of the two programs, seem to work better)