tongxinwangsuanfa

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。PSO 算法属于进化算法的一种，和模拟退火算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。粒子群算法是一种并行算法。 BP（Back Propagation）神经网络是1986年由Rumelhart和McCelland为首的科学家小组提出，是一种按误差逆传播算法训练的多层前馈网络，是目前应用最广泛的神经网络模型之一。BP网络能学习和存贮大量的输入-输出模式映射关系，而无需事前揭示描述这种映射关系的数学方程。它的学习规则是使用最速下降法，通过反向传播来不断调整网络的权值和阈值，使网络的误差平方和最小。BP神经网络模型拓扑结构包括输入层（input）、隐层(hidden layer)和输出层(output layer)。(Particle swarm optimization, also known as particle swarm optimization (Particle Swarm Optimization), abbreviated as PSO, is a new evolutionary algorithm developed in recent years (Evolutionary Algorithm- EA). Kind, and simulated annealing algorithm PSO algorithm is similar evolutionary algorithms, it is also starting a random solution, through an iterative search for the optimal solution, which is also used to uate the quality through fitness solution, but it is simpler than genetic algorithm rules It has no genetic algorithm " crossover" (Crossover) and " variant" (Mutation) operation, which by following the current search to find the optimal value to the global optimum. This algorithm is its easy implementation, high accuracy, fast convergence, etc. attracted academic attention and show its superiority in solving practical problems. PSO algorithm is a parallel algorithm. BP (Back Propagation) neural network is a 1986 team of scientists headed by Rumelhart and McC)

MATLAB GUI教学视频6：下拉菜单Pop-Up Menu的基本用法(MATLAB GUI Teaching video 6: drop-down menu Pop-Up Menu of the basic usage)

PSAT工具的文件介绍，很实用，非常适合初学者，希望对大家有用。(File PSAT presentation tool, very practical, very suitable for beginners, I hope useful.)

IIR数字通信滤波器的设计源程序与实现过程(IIR Digital Communication Filter Design and Implementation of source code)

householder矩阵的数值分析及matlab实现(householder)

reflectivity group delay and dispersion of a sampled fiber Bragg grating with periodic phase shifts at each sampling period

通过公式SW=（C/Crand）/（L/Lrand）求取复杂网络的小世界性系数。 注：其中聚类系数和平均距离都是直接调用工具包中的函数。(By the formula SW = (C/Crand)/(L/Lrand) to strike a small complex networks worldwide coefficients. Note: where clustering coefficient and average distance are called directly toolkit functions.)

主要内容包括matlab 语言基础、MATLAB程序设计基础、各种数值计算方法程序，可为MATLAB初学者提供学习指导。(The main contents include basic language matlab, MATLAB programming foundation, various numerical methods and procedures, MATLAB provides guidance for beginners to learn.)

多姿态，多角度，有不同光照,到达过程是的泊松过程，使用拉亚普诺夫指数的公式。( Much posture, multi-angle, have different light, Arrival process is a Poisson process, Raya Punuo Fu index using the formula.)

View a SMS .2dm mesh file in MATLAB using patch