Steganography

This is the Source code for MATLAB DWT watermarking.

MATLAB数学工具软件 实例简明教程 王正盛 编写 南京航空航天大学(MATLAB software instances of mathematical tools to prepare simple tutorial Wang Zhengsheng, Nanjing University of Aeronautics)

PLL锁相环的搭建，通过坐标变换实现锁相(PLL Phase-Locked Loop)

根据设定的m,n的值，可以产生不同的衍射散斑图。(In accordance with the set m, the value of n, can produce different diffraction speckle pattern.)

blind image watermarking...........image hidding in image using SVD

说明：  经典遗传算法工具箱中的最大代数终止程序，与大家分享(classical genetic algorithm toolbox the largest algebra termination of the procedure, to share with you)

动态系统建模与仿真第二，第四章，详细介绍MATLAB环境下的建模仿真。(Dynamic System Modeling and Simulation II, Chapter IV, details of the modeling and simulation environment MATLAB.)

Wilson法求解动力方程，可以画出节点的位移响应(Wilson method for solving dynamic equations, you can draw the node displacement response)

小波包分析提取振动信号中的特征频率，供做算法研究人员参考，有较好的参考价值。( Wavelet packet analysis to extract vibration signal characteristic frequency, Algorithm for researchers to do reference, There are good reference value.)

说明：  解压后可以直接运行。打包里面的材料包括了1元2元三元的函数优化（都是采用二进制实现的）主要是用来实现函数的优化，具体在代码里面有详细说明。(the file is make for the beginner of learning matlab .I hope it can help you !)