dxf_read

基于主成分分析(PCA)的人脸识别系统 利用2D PCA算法求对训练集向量进行降维的降维矩阵，最近邻法测试对测试集识别的精度(pca face recognition)

声音时频分析的小程序，可以直接使用，可供初学者参考利用。(Sound frequency analysis procedures can be used directly reference for beginners to use.)

R/S分析的程序，用来计算Hurst指数用的(R/S analysis procedures used to calculate the index Hurst)

MIMO signal and system 这本书的全部代码。包含了precoding, STBC, detection 算法与书配套，可以对照学习，对初学者很有好处，也可以在代码基础上进行改进。(MIMO signal and system of this book all the code. Accompanied by a book, you can control study, very good for beginners, but also can improve the code base)

MATLAB环境下开发的混沌理论的工具箱，包含各种实例，学习混沌理论的好帮手(Chaos theory toolbox, matlab )

说明：  介绍LTE系统的经典书籍，有兴趣学习LTE系统的可以看看(LTE system introduced classic books, are interested in learning the system can look at LTE)

现代信号谱分析 capon 算法MATLAB例程(spectral analysis of signals)

用经典的BJ方法估计ARMA模型，一个经典范例(Using the classical BJ approach to estimate ARMA models, here is an example)

这是一个HDB3译码的matlab程序，可进行信源译码，可以做为一个子程序(This is a HDB3 decoder matlab program source decoder can be used as a subroutine)

hello,to growing the picture in matlab