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说明：  对wav file 进行 waterfall fft处理(wav file waterfall FFT)

基于MATLAB的信号采样与重构的实现,该文档是基于理论算法的研究，同时给出了较为详细的说明。(Realization of signal sampling and reconstruction based on MATLAB)

一种关于图像阈值分割的算法，自己试过很好用。(An image threshold segmentation algorithm, I have tried it very well.)

1-32是：图形应用篇33-66是：界面设计篇67-84是：图形处理篇85-100是：数值分析篇(1-32 are: graphics applications, articles 33-66 are: interface design articles 67-84 are: graphics processing chapter 85-100 are: Numerical Analysis Section)

for estimating unknown parameters using ARIMA

implementation of PDS filters

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环境下对图像单个区域标号并且获得区域的几何特征(MATLAB environment, a single region label image and the geometric characteristics of the region)

messy genetic algorithm

pmsm的矢量控制模型，喜欢的可以下载看看，不完善的地方欢迎大家讨论