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这是在matlab下实现的包络检波算法法。先对信号进行调制，然后进行包络检波。 (This is the method of envelope detection algorithm under Matlab. First signal modulation, and then proceed to the envelope detector.)

这个与刚才的walawala3对比的程序。 是添加了高斯白噪声的。(this with just walawala3 contrast to the procedure. Is added to the Gaussian white noise.)

数学建模迪卡斯特拉算法，最短路问题图论的应用(Mathematical modeling Ducasse Terra algorithm)

说明：  （1）应用9×9的窗口对上述图象进行随机抽样，共抽样200块子图象； （2）将所有子图象按列相接变成一个81维的行向量； （3）对所有200个行向量进行KL变换，求出其对应的协方差矩阵的特征向量和特征值，按降序排列特征值以及所对应的特征向量； （4）选择前40个最大特征值所对应的特征向量作为主元，将原图象块向这40个特征向量上投影，所获得的投影系数就是这个子块的特征向量。 （5）求出所有子块的特征向量。 ((1) the application of 9 × 9 window of these images at random, a total sample of 200 sub-image (2) all sub-images according to out-phase into a 81-dimensional row vector (3) all 200 lines for KL transform vector, derived its corresponding covariance matrix of eigenvectors and eigenvalues, in descending order by eigenvalue and the corresponding eigenvector (4) a choice to 40 corresponding to the largest eigenvalue eigenvector as the PCA, the original image block to the 40 feature vectors on the projection, the projection coefficients obtained by this sub-block eigenvector. (5) calculated for all sub-block eigenvector.)

Particle Swarm Optimization Protocol

Simple mucic application using API winnm.dll

MINQ - bound constrained quadratic programming using rank 1 modifications source: http://solon.cma.univie.ac.at/~neum/software/minq

ALOHA协议的思想很简单，只要用户有数据要发送，就尽管让他们发送。当然，这样会产生冲突从而造成帧的破坏。但是，由于广播信道具有反馈性，因此发送方可以在发送数据的过程中进行冲突检测，将接收到的数据与缓冲区的数据进行比较，就可以知道数据帧是否遭到破坏。(ALOHA protocol s thought is very simple, as long as the user data to be sent, although let they send. There are, of course, such conflicts which cause the destruction of the frame. But, because the radio channel has feedback, so the sender can be tested to the conflict in the process of sending data, the received data comparison with data of the buffer, you can know whether data frame was damaged.)

包含了多个matlab编程在图像中加入水印的处理代码(Contains a number of matlab programming to add watermark in image processing code)

functions for data representation