33-32

通过检验相关系数进行多变量灰色预测 用MATLAB 编制(By examining the correlation coefficients are more variable gray forecast prepared with MATLAB)

神经网络LMS算法的学习规则，求的最大稳态学习速度，进行权值学习训练(artificial Neural Network Least Mean Square)

围绕粒子群的当前质心对粒子群重新初始化.这样，每个粒子在随后的迭代中将在新的位置带着粒子在上次搜索中获得的“运动惯性”（wvi）向Pi，Pg的方向前进，从而可以在粒子群的运动过程中获得新的位置，增加求得更优解的机会.随着迭代的继续，经过变异的粒子群又将趋向于同一点，当粒子群收敛到一定程度时又进行下一次变异，如此反复，直到迭代结束.(particle swarm around the center of mass of the current PSO reinitialization. Thus, Each particle in the next iteration will be in the new location with particles in the last search was the "inertia" (wvi ) Pi, Pg orientation, and thus can PSO course of the campaign was a new position, increase seek better solutions opportunities. With the continued iteration, after variation of PSO will tend to the same point. When PSO converge to a certain extent when the next variation, so repeatedly, until the end of iteration.)

说明：  LTE协议中的主同步和辅同步信号的产生程序，matlab实现，可用，供参考(In LTE protocol, the main synchronous signal and the auxiliary synchronous signal are generated by MATLAB, which is available for reference)

4 Diffrent diagrams of a FM spybugs.

This is a small program to create indexs for two binary trees and combine them to a new 003 * index tree and output the new tree,the second tree only has the left child tree then 004 * if the first tree has no left child tree,insert the second tree into the first tree as 005 * its left child and if the first tree has the left child tree,then insert the first tree 006 * into the second tree as its left child. (This is a small program to create indexs for two binary trees and combine them to a new 003* index tree and output the new tree, the second tree only has the left child tree then 004* if the first tree has no left child tree, insert the second tree into the first tree as 005* its left child and if the first tree has the left child tree, then insert the first tree 006* into the second tree as its left child.)

单载频雷达信号在欠采样条件下产生频谱混叠，用MATLAB仿真验证的结果(Subsampling conditions of single carrier frequency radar signal spectrum aliasing, using MATLAB simulation results)

plot graph in Mallab

人脸识别检测PCA算法在MATLAB平台下的源代码(PCA algorithms)

vad（语音活动检测）的matlab代码，采用频域的方法计算信噪比。(vad (voice activity detection) Matlab code, using frequency-domain approach to calculate the signal-to-noise ratio.)