阵列信号处理的高分辨率估计，是学习PCA特征提取的很好的学习资料，最终的权值矩阵就是滤波器的系数，搭建OFDM通信系统的框架，快速扩展随机生成树算法。-High-resolution array signal processing estimates, Is a good learning materials to learn PCA feature extraction, The final weight matrix is ??the filter coefficient, Build a fr a mework OFDM communication system, Rapid expansion of random spanning tree algorithm.