基于粒子群优化算法（PSO）的环形阵列天线方向图的仿真程序

循环冗余校验就是一种被广泛采用的错误检验编码。介绍了循环冗余校验码的差错控制原理及其算法实现。(CRC is a widely used test coding errors. Introduced a cyclic redundancy check code for error control principle and algorithm.)

spider，很好用的模式识别工具箱，里面有各种分类工具，从有监督学习到无监督学习，从模型选择到参数选择。而且也将各个方法封装成类，使用方便。(spider, good use of pattern recognition toolbox, there are various classification tools, from supervised learning to unsupervised learning, choose Preferences from the model. But also the various methods into a class package, easy to use.)

粗糙集中用于数据约简的算法的matlab源代码(Rough set theory for data reduction algorithm matlab source code)

说明：  首先确定被评价对象的因素（指标）集和评价（等级）集；再分别确定各个因素的权重及它们的隶属度向量，获得模糊评判矩阵；最后把模糊评判矩阵与因素的权向量进行模糊运算并进行归一化，得到模糊综合评价结果(Firstly, the factor (index) set and the evaluation (grade) set of the evaluated object are determined; then the weight of each factor and their membership degree vectors are determined separately, and the fuzzy evaluation matrix is obtained; finally, the fuzzy evaluation matrix and the weight vector of the factor are fuzzily calculated and normalized, and the result of the fuzzy comprehensive evaluation is obtained.)

说明：  一个一维FDTD方法程序，并完成脉冲波对介质片的反射和透射系数的计算，采用MATLAB仿真(A one-dimensional FDTD methods and procedures, and complete the pulse of the dielectric film of reflection and transmission coefficients of the calculation, using MATLAB simulation)

power active filter simulation

拉格朗日动力学方程自动求解：用于串联、并联、混联机械系统拉格朗日动力学方程建模时自动求解方程的系数(automatic solution of Lagrangian equation)

用于实现加了噪声的灰度图像阈值分割的一维最大熵方法，matlab源程序(Used to realize the addition of noise gray image threshold segmentation of the one-dimensional maximum entropy method, matlab source)

说明：  对周期激振力作用下的单自由度无阻尼系统，将激励展开成傅里叶级数，观察其对方波函数的逼近情况，并计算系统的受迫振动。(For the single degree of freedom undamped system under the action of the periodic excitation force, the excitation is expanded into Fourier series, and the approximation of Fang Bo's function is observed and the forced vibration of the system is calculated.)

卡尔曼滤波器的matlab文件程序，经测试可用(Kalman filter matlab file procedures used by the test)