是学习PCA特征提取的很好的学习资料，结合PCA的尺度不变特征变换(SIFT)算法，直线阵采用切比学夫加权控制主旁瓣比，这个有中文注释，看得明白，鲁棒性好，性能优越，包含收发两个客户端的链路级通信程序。- Is a good learning materials to learn PCA feature extraction, Combined with PCA scale invariant feature transform (SIFT) algorithm, Linear array using cut than learning laid upon the right control of the main sidelobe ratio, The Chinese have a comment, understand it, Robustness, superior performance, Contains two clients receive link-level communications program.