图像镜像

Matlab编制的用于图像处理的带通巴特沃思滤波器(Constructs a band-pass butterworth filter)

说明：  利用matlab求解线性规划与非线性规划(Using matlab for solving linear programming and nonlinear programming)

matlab新手教程，适合新手阅读，可以让新手快速上手。(textbook of matlab for the freshman，it must be suitable for the green hand，the book could guide the reader to find a way to understand quickly)

NW小世界网络的构成原则为：从一个环状的规则网络开始，网络含有N个结点，每个结点向与它最近邻的K个结点连出K条边，并满足N>>K>>In(N)>>1。随后进行随机化加边，以概率p在随机选取的一对节点之间加上一条边。其中，任意两个不同的节点之间至多只能有一条边，并且每一个节点都不能有边与自身相连。改变p值可以实现从最近邻耦合网络(p=0)向全局耦合网络(p=1)转变。在p足够小和N足够大时，NW小世界模型本质上等同于WS小世界模型。 (NW constitutive principles of small-world networks: from the rules of a ring network, network with N nodes, each node is connected to the K node with its nearest neighbor K edges, and meet N > > K > > In (N) > > 1. Followed by randomization into the plus side, with probability p with an edge between a pair of nodes in a randomly selected. Wherein between any two different nodes at most only one edge, and each node can not have a side connected with itself. P value can be changed to achieve the transition from the nearest neighbor coupling network (p = 0) coupled to the global network (p = 1). When p is small enough and large enough N, NW small-world model is essentially the same as the WS small-world model.)

基于边界元与有限元耦合的地震动模拟程序。能简单有效的解决地震作用下地表位移反应问题(Based on boundary element and finite element coupled to ground motion simulation program. Can be simple and effective solution surface displacement response under earthquake problem)

说明：  PMSM Field Oriented Control using Svpwm for Control Moment Gyroscope

说明：  matlab下实现对高斯噪声下的小目标的滑窗检测。数据为1000个点，滑窗窗口大小为30，每次滑动一个点的数据。采用的是窗内30个数据先各自平方，然后求和，再除以窗口大小。实验表明能有效检测雷达目标信号。(matlab under Gaussian noise to achieve a small target detection sliding window. Data for 1000 point sliding window window size is 30, each time moving a point of data. Using the data before the window each 30 square feet, and then summed, divided by the window size. Experiments show that the radar target signal can be detected.)

this is the program for finding peak power in ofdm using selective mapping

给你一个非常大的整数x，(-10^400 <=x<= 10^400)，请统计x的每一位，分别输出9,1,2出现的次数. Input 一个大整数 Output 一共三行，第一行是9出现的次数，第二行是1出现的次数，第三行是2出现的次数。 Sample Input 912912912910915902 Sample Output 6 5 4(Statistical figures)

此程序是用matlab编写的神经网络bp算法的一个简单例子(this procedure is used Matlab prepared by the neural network algorithm bp of a simple example)