pso_fcm

说明：  用matlab的mesh命令画出所要求解的大量数据文件的图形(The mesh command using matlab draw large amounts of data required for solution of graphic files)

基于Costas编码的跳频信号的互相关时延估计，matlab版本：2013a(Delay estimation based on cross-correlation coding Costas frequency hopping signals, matlab version: 2013a)

This program used to show the Performance of MC-CDMA and OFDM system in AWGN and fading channels with specified parameters given in the code .

数学建模2008年D题.该文件是2008年全国研究生数学建模D题的求解软件包。(Mathematical Modeling 2008 D. This document is the solving package of 2008 National Graduate D mathematical modeling problem.)

说明：  粒子群算法（PSO）是一种基于群体的随机优化技术。与其它基于群体的进化算法相比，它们均初始化为一组随机解，通过迭代搜寻最优解。不同的是：进化计算遵循适者生存原则，而PSO模拟社会。将每个可能产生的解表述为群中的一个微粒，每个微粒都具有自己的位置向量和速度向量，以及一个由目标函数决定的适应度。所有微粒在搜索空间中以一定速度飞行，通过追随当前搜索到的最优值来寻找全局最优值。 PSO模拟社会采用了以下三条简单规则对粒子个体进行操作：①飞离最近的个体，以避免碰撞。②飞向目标。③飞向群体的中心。这是粒子群算法的基本概念之一。 粒子群算法其基本思想是受许多鸟类的群体行为进行建模与仿真研究结果的启发(Particle swarm optimization (PSO) is a population based stochastic optimization techniques. Based on evolutionary algorithms compared with other groups, they are initialized to a random solution, iterative search through optimal solution. The difference is: the principle of survival of the fittest evolutionary computation to follow, while PSO simulation community. The potential of each solution expressed as a group of particles, each particle has its own position vector and the velocity vector, and a fitness determined by the objective function. All particles in the search space at a constant speed flight, by following the current search to find the optimal values ​ ​ of the global optimum. PSO simulation community has adopted the following three simple rules for the operation of individual particles: ① recently departed individuals, in order to avoid collisions. ② to the target. ③ fly to center groups. This is one of the basic concepts of particle swarm algorithm. PSO algori)

说明：  这是光学衍射部分的内容，，衍射部分的基本上都包括了，(This is part of the contents of the optical diffraction, the diffraction part basically includes,)

This is an image segmentation file.

说明：  Simulation of Alamouti’s Scheme over Rayleigh fading channel. Assume perfect channel state information at the receiver. Plot BER performance (use gray mapping) and compare it to MRC with 2RX antennas. Compare the performance with MRC.

排队论，对策论的一些源码，可以运用此源码解决一些问题哦！(Queuing theory, game theory and some of the source, this source can be used to solve some problems Oh!)

texture using matlab