Simulated-annealing

粒子群优化算法(PSO)是一种进化计算技术(evolutionary computation)，有Eberhart博士和kennedy博士发明。源于对鸟群捕食的行为研究 PSO同遗传算法类似，是一种基于叠代的优化工具。系统初始化为一组随机解，通过叠代搜寻最优值。但是并没有遗传算法用的交叉(crossover)以及变异(mutation)。而是粒子在解空间追随最优的粒子进行搜索。详细的步骤以后的章节介绍 同遗传算法比较，PSO的优势在于简单容易实现并且没有许多参数需要调整。目前已广泛应用于函数优化，神经网络训练，模糊系统控制以及其他遗传算法的应用领域(Particle Swarm Optimization (PSO) is an evolutionary computation technique (evolutionary computation), has Dr. Eberhart and Dr. kennedy invention. Deriving from the behavior of birds of prey PSO with genetic algorithm is similar to an iterative optimization-based tools. System initialization for a group of random solutions, through the iterative search for optimal values. But there is no cross-genetic algorithm used (crossover) and mutation (mutation). But the particles in the solution space of the particles to follow the optimal search. In detail the steps after the introduction sections compared with the genetic algorithm, PSO has the advantage of being simple and easy and did not realize many of the parameters need to be adjusted. Has been widely applied to function optimization, neural network training, fuzzy system control, as well as other genetic algorithm applications)

使用matlab通过fdtd实现一维到三维的光子晶体模拟(Using MATLAB FDTD to achieve through the one-dimensional to three-dimensional simulation of photonic crystal)

很好的MATLAB教程，思路清晰，有助于初学者快速学号MATLAB(Good MATLAB tutorials, clear thinking, helps beginners quickly learn No. MATLAB)

虫口模型：某模型的分岔图，详细的计算过程，里面还附有结果图( Insect population model: a model bifurcation diagram insect population model: a model of the bifurcation diagram)

说明：  全相位FFT算法是天津大学的王兆华和候正信教授提出的，具有初始相位不变和有效防止频谱泄露的特性，在他的相关书籍上做过严格的证明，并有相应的matlab程序。(All-phase FFT algorithm is proposed by Professor Wang Zhaohua and Professor Hou Zhengxin of Tianjin University. It has the characteristics of invariant initial phase and effective prevention of spectrum leakage. It has been strictly proved in his relevant books and has corresponding matlab program.)

matlab的命令大全，几乎涵盖matlab的所有命令(matlab command Guinness, cover almost all the command matlab)

matlab求解二阶全微分方程解析解的程序(the programming of resolving the Second order full differential equation by matlab)

相位敏感光纤放大器的原理，核心思想是四波混频，用龙格库塔编程(The principle of phase sensitive optical fiber amplifier, the core idea is that the four wave mixing, Runge Kutta programming)

一个很简单的m序列产生过程，很容易掌握的。(m-sequences generated by matlab procedures, good procedures, hard to find, and can be downloaded.)

光流场 的经典算法，matlab程序，可直接用(Optical Flow Field：Horn-Schunck)