matlabJIEPING

matlab程序300例，帮助学习matlab(matlab program 300 cases to help learning matlab)

说明：  改进后的Pitch Synchronous Overlap Add方法，用于在不引起失真的情况下，改变语音的基频和时长(Improved Pitch Synchronous Overlap Add method, used in the case does not cause distortion, change of voice fundamental frequency and length of)

This is the matlab code of filter bank design.

Modulation test for OFDM : This is a set of five (5) codes about COFDM (Coded Orthogonal Frequency Division Multiplexing) and coding schemes such as Convolutional, BCH, Reed Solomon (RS) and Low Density Parity Check (LDPC). The study uses an OFDM signal over an AWGN Channel with white Gaussian noise model, and calculate the Bit Error Rate wich is plotted.

图片印刷字符的识别（可识别多种字体） 将Matlab工作空间路径设置为本文件夹 在Matlab命令窗口内输入： numCongnition( able1/01.jpg ) 通过改图片来对不同的图进行处理，其中able1,able2,able3三个文件夹分别对应三种字体 命令窗口输出要识别的字符，并且自动弹出中间处理过程窗口 也可以运行： num = pretreat( able1/01.jpg ) imshow(num) 直接得到预处理后的图片 再键入： getNumber(num) 得到字符输出 (Set the Matlab workspace path to this folder In the Matlab command window input: NumCongnition ( able1/01. JPG) Through change pictures to deal with different figure, including able1, able2, able3 three folders corresponding to three kinds of fonts Command window output to identify characters, and automatically process among popup Windows Can run: Num = pretreat ( able1/01. JPG) Imshow (num) Directly after preprocessing of images Type: GetNumber (num) Get the output character)

This pdf file contains steps to simulate a traction load in an area with varaiable speed control and traction operation mode and regenerative mode.

说明：  Market Newman写的复杂网络的加权GN算法 算法用Python写的 其基本思想是不断的删除网络中具有相对于所有源节点的最大的边介数(ege betweenness)的边，然后，再重新计算网络中剩余的边的相对于所有源节点的边介数(The basic idea is to delete the network with respect to all of the source nodes of the largest betweenness (EGE betweenness) edges, then re computing network the remaining edge relative to the boundary of the source node number of all)

说明：  内含8个数学建模的实验报告：线性规划、插值、拟合、非线性规划、蒙特卡洛方法、微分方程、无约束优化、回归分析(Mathematical modeling includes 8 Experiment Report: linear programming, interpolation, fitting, linear programming, Monte Carlo method, differential equations, unconstrained optimization, regression analysis)

说明：  使用蚁群算法解决旅行商问题，求路径最短问题(Using ant colony algorithm to solve the traveling salesman problem and find the shortest path)

视频加噪攻击 ，是基于matlab的，经过测试，效果很好，(AdditionalNoise)