Orthogonal

simple code for filtering image

拟牛顿法的matlab应用，提供matlab程序，数值分析核心方法(Quasi-Newton method matlab applications, providing matlab program, the core numerical analysis method)

说明：  用来计算固有模态函数（IMF）瞬时频率及振幅包络的代码(The function FA computes a frequency and amplitude of data(n,k), where n specifies the length of time series, and k is the number of IMFs. )

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。(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.)

该程序代码为结构拓扑优化设计实例，是对飞机耳片结构的优化(The code for topology optimization of the design example, the optimization of the structure of the aircraft hanger)

normalized huffman code for digital comm

程序1实现了一维Airybeam的三维图形，从x-y面可以看出Airybeam的传输轨迹，三维图形的z轴是光强； 程序2实现了1维Airybeam的轨迹控制，通过改变wm和wg的值可使光强的最大值在任意位置。(A three-dimensional graphics program to achieve a one-dimensional Airybeam the xy plane can be seen Airybeam transfer trajectory, and three-dimensional graphics z-axis is the light intensity 2 implements the program track 1-dimensional Airybeam control, by changing the value of wg wm and the light intensity at an arbitrary position allows the maximum.)

Matlab讲义高级，一共包含六章内容及五个实例(Matlab senior notes)

Chaotic Pendulum, Shows entrance and exit of Chaos

用于用MATLAB编程线性滤波法模拟风荷载计算脉动风载荷(Computation of fluctuating wind load)