Exercise4

利用EM算法来实现参数估计，两个等概率事件(expectation max)

对股票市场的模拟尝试，建立一个离散模型描述情况(Stock market simulation attempts to establish a discrete model description)

雷达方程仿真程序，包括基本的雷达距离方程，雷达能量方程，脉冲压缩处理等-radar function simulation code, including basic radar range function, radar power function, pulse compress processing(The radar equation simulation program, including basic radar range equation, radar energy equation, pulse compression processing-radar function simulation code, including basic radar range function, radar power function, pulse compress processing)

GPS_INS紧耦合组合导航系统研究,对学习组合导航系统有一定的参考价值(GPS_INS tightly coupled integrated navigation system, integrated navigation system for the study has some reference value)

一、 利用MATLAB产生下列连续信号并作图 （1） x(t)=-2u(t-1),-1<t<5 x(t)=cos(100t)+cos(3000t),设-0.1<t<0.1(one, Using MATLAB produce the following continuous signals and mapping (1) x (t) =- u (t-1)-1)

通信行业中的扩频通信技术使用广泛，该文档主要介绍有关扩频通信的相关知识。(communication sectors of the use of spread-spectrum communication technology widely, the document introduces the spread spectrum communication related knowledge.)

Matlab function to generate a random vector with entire values without repetition.

线性方程组的直接发的源代码，matlab编写的，值得收藏，欢迎大家踊跃下载，为中国的科研事业做贡献(Linear equations of the source code directly, matlab prepared and worthy of collection, enthusiastically welcomed the U.S. download, in order to make China' s contribution to the cause of scientific research)

对应聚类分析与盲矿体的地球化学预测 为利用矿区地球化学数据进行找矿靶区预测，采用了对应的聚类分析方法(Cluster analysis and blind orebodies corresponding geochemical prediction for the use of data mining geochemical prospecting target prediction, using the corresponding cluster analysis method)

将doubly stochastic matrix分解成一个排列矩阵的集合，并构造其概率分布(The doubly stochastic matrix is ​ ​ decomposed into a set of permutation matrix，at the same time，its probability distribution is constructed.)