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[hao]超宽带通信系统的Simulink仿真实现,较好的利用了matlab平台([hao] Ultra-Wideband Communication Systems Simulink simulation of the realization of a better platform to use the matlab)

主成分分析(PCA)是一个数学的过程,它使用一个正交变换转换成一组观测到的可能相关的因素形成一套价值观的独立变量称为主成分。主成分的数量小于或等于原始变量的数目 (Principal component analysis (PCA) is a mathematical procedure that uses an orthogonal transformation to convert a set of observations of possibly correlated variables into a set of values of uncorrelated variables called principal components. The number of principal components is less than or equal to the number of original variables)

1.采用C均值聚类算法对男女生样本数据中的身高、体重2个特征进行聚类分析，考察不同的类别初始值以及类别数对聚类结果的影响，并以友好的方式图示化结果。 2.采用分级聚类算法对男女生样本数据进行聚类分析。分别尝试采用身高，体重，喜欢数学，喜欢文学，喜欢运动，喜欢模式识别共6个特征，以及身高，体重2个特征进行聚类，对比聚类结果，并以友好的方式图示化结果 (1. The use of C means clustering algorithm on sample data for boys and girls in the height, weight 2 characterized in cluster analysis to investigate the initial values of the different categories and the effect on the number of classes of the clustering result, and in a friendly way of illustration result. 2. Using hierarchical clustering algorithm to male and female students sample data clustering analysis. Try both using height, weight, like math, like literature, like sports, like pattern recognition feature a total of six, as well as height, weight, two features clustering, comparing clustering results, and in a friendly way of illustration of the results)

几种变化检测算法的简单演示，包括比值法，归一化法，相关系数法三种方法(Several simple demonstration of the change detection algorithm, including ratio method, normalization method, three methods of correlation coefficient)

计算两个离散变量x和y的条件熵z = H（x | y）。 with Input：两个相同长度的整数向量 有益于学习(Compute conditional entropy z=H(x|y) of two discrete variables x and y. with Input: of two integer vector of the same length good for learning)

matlab中使用文本文件进行数据存取的技巧总结 (matlab text file using the techniques for data access summary)

Pedagogy Pedagogy Pedagogy

这个是关于模糊聚类的MATLAB程序，很简单，自己慢慢琢磨(This is on the MATLAB fuzzy clustering procedure is very simple, slowly pondering their own)

matlab时频分析工具箱，其中包含调幅信号，调频信号，相位编码信号，阶跃信号等等(Time-Frequency Analysis toolbox )

从视频中提取关键帧，以若干张图片替代视频关键内容。(Key frame extraction from video to video a number of key elements of alternative images.)