是学习PCA特征提取的很好的学习资料，相控阵天线的方向图（切比雪夫加权），matlab小波分析程序，可以实现模式识别领域的数据的分类及回归，包括数据分析、绘图等等,有较好的参考价值。- Is a good learning materials to learn PCA feature extraction, Phased array antenna pattern (Chebyshev weights), matlab wavelet analysis program, You can achieve data classification and regression pattern recognition, Data analysis, plotting, etc., There are good reference value.