中文说明：是学习PCA特征提取的很好的学习资料，现代信号处理中谱估计在matlab中的使用，快速扩展随机生成树算法，是机器学习的例程，利用matlab GUI实现的串口编程例子，各种资源分配算法实现。
English Description：
Is learning PCA feature extraction of very good learning materials, modern signal processing in spectrum estimation in MATLAB, the rapid expansion of the random spanning tree algorithm, machine learning routines, using Matlab GUI to realize the serial programming examples, a variety of resource allocation algorithm.