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图形旋转的matlab程序，可以进行任意角度的旋转 请参看(Graphic rotation matlab program, can be at any angle of rotation see)

计算MSE和PSNR的小程序，自己写的，比较简单实用(MSE and PSNR calculation of small programs, to write their own, relatively simple and practical)

这个源代码是关于顺序选择遗传算法的实例，其中个体数目为50个(This source code is on the order of the genetic algorithm to instances, where the number of individuals of 50)

说明：  采用栅格对机器人的工作空间进行划分，再利用优化算法对机器人路径优化，是采用智能算法求最优路径的一个经典问题。目前，采用蚁群算法在栅格地图上进行路径优化取得比较好的效果，而利用遗传算法在栅格地图上进行路径优化在算法显得更加难以实现。 利用遗传算法处理栅格地图的机器人路径规划的难点主要包括：1保证路径不间断，2保证路径不穿过障碍。 用遗传算法解决优化问题时的步骤是固定的，就是种群初始化，选择，交叉，变异，适应度计算这样，那么下面我就说一下遗传算法求栅格地图中机器人路径规划在每个步骤的问题、难点以及解决办法。(It is a classical problem to divide the workspace of the robot by grids and optimize the path of the robot by using optimization algorithm. At present, the ant colony algorithm is used to optimize the path on the grid map, and the genetic algorithm is used to optimize the path on the grid map, which is more difficult to achieve. The difficulties of using genetic algorithm to deal with the path planning of robot on raster map mainly include: 1. guaranteeing that the path is uninterrupted, 2. guaranteeing that the path does not cross obstacles. The steps of genetic algorithm in solving optimization problems are fixed, that is, population initialization, selection, crossover, mutation, fitness calculation. Then I will talk about the problems, difficulties and solutions of genetic algorithm in each step of robot path planning in raster map.)

两个求信号包络谱和幅值谱的matlab程序，也可求功率谱。(2 effective procedures for the signal envelope spectrum and amplitude spectrum)

ABC到ab变换，基于matlab7.0的最基本变换，对于矢量控制和直接转矩控制的初学者有入门作用(ABCto abchange)

说明：  运用Matlab编程，实现了结构的刚度矩阵和质量矩阵的凝聚。(Using Matlab programming, to achieve the structural stiffness matrix and mass matrix condensation. )

基于802.11完整OFDM仿真程序，包括发送端和接收端，调制及解调(OFDM simulink code)

The Frequency Domain Decomposition (FDD) is an output-only system identification technique popular in civil engineering, in particular in structural health monitoring. As an output-only algorithm, it is useful when the input data is unknown. FDD is a modal analysis technique which generates a system realization using the frequency response given (multi-)output data

This is a case where a array is introduced