projection2

office 操作技巧包括matlab简单入门教程。可供老师教学参考之用。(office operating skills, including Getting Started tutorial matlab simple. Made available to teachers teaching reference.)

用matlab实现视频帧的目标提取,能达到较好的提取效果，具体方法为帧差法(Using matlab to achieve the goal of video frame extraction, the extraction can achieve better results, specific methods for the frame difference method)

signals snr ratio by opertions

一个关机恶搞程序，仅供娱乐，其实很简单就用了system函数(A spoof shutdown procedures, for entertainment purposes only, is actually very simple to use system functions)

WATEMARKING WITH BLIND EMBEDDING

这是一个二维小波变换经典程序，用DWT实现图像的分解与重构(This is a two-dimensional wavelet transform of the classic procedure, using DWT realize image decomposition and reconstruction)

这个 matlab 代码仿真了M-QAM的传输。M的取值不同，调制方式分别为4QAM，16QAM，64QAM等。传输信道为AWGN信道，能出误码率曲线(Digital Unit Impulse Discrete Harmonic Signals and their Linear Combination Harmonic Signal with Exponential Envelope. Periodic Sequence of Rectangular Impulses Mixture of Harmonic Signal and White Gaussian)

说明：  粒子群优化方法，并行计算，收敛速度快，利于全局优化，算法实现简单(Particle Swarm Optimization)

自动控制原理的matlab实现，习题源代码(Matlab achieve automatic control theory, exercises the source code)

利用符号计算推导光学三阶微环滤波器传输函数，代入参数计算光谱响应，并对关键参数做扫描，绘制4通道微环滤波器响应谱。(Utilizing symbolic computation to derive the third-order optical micro-ring filter transfer function, substitutes the parameters to calculate the optical response. The key parameters are swept and the optical response of a four-channel micro-ring filter is drawn.)