POSION

实现了三级小波变换数字水印嵌入中频小波信号，要求图像大小256*256RGB，水印图片大小32*32二值图像。(Three wavelet transform digital watermarking embedded the IF wavelet signal to the image size 256* 256RGB watermark image size 32* 32 binary image.)

这是一个凯瑟窗的例子，利于凯瑟窗做成一个带通滤波器(This is a Kaiser window example, conducive to the Kaiser window into a band-pass filter )

自己做的基于非线性动力学模型的四旋翼飞行器用的PID控制的姿态控制仿真模型和位置回路的仿真模型，inversion1是给定位置解算姿态的文件(Based on their own four-rotor aircraft nonlinear dynamic model with attitude control PID control simulation model simulation model and the position loop, inversion1 a given location solver attitude file)

基于坐标变换的电机模型，采用maltab/simulink建立的模型，三相交流电压型输入。(Motor model based on coordinate transformation maltab/simulink established model, three-phase AC voltage input.)

matlab 视频读取方式的研究，有好多种方法，很好用哟(matlab video read mode, there are a variety of methods well with yo)

说明：  For load flow analysis of an interconnected power system

一个简单的Kalman滤波程序，对学习Kalman滤波有很大的帮助(A simple Kalman filter program, to learn a great help Kalman filter)

通过matlab模拟仿真光反馈半导体激光器的非线性动态输出特性，主要包括单周期振荡，倍周期振荡，四倍周期振荡和混沌振荡等。(Research program by matlab optical feedback semiconductor laser output characteristics of nonlinear dynamics, there are single-cycle oscillation, the oscillation cycle times, four times the oscillation cycle oscillations and chaos.)

finite difference demo code

现代通信系统（matlab版）书中所有源码。这本书能够帮助初学通信原理的同学深入体会原理的内涵。(Modern communication systems (matlab version) book all source code. This book will help novice students in-depth experience of communication theory principles connotations.)