中文说明：对于初学者具有参考意义，是学习PCA特征提取的很好的学习资料，毕业设计有用，研究生时的现代信号处理的作业，包含了阵列信号处理的常见算法，时间序列数据分析中的梅林变换工具。
English Description：
Has reference value for beginners, is learning PCA feature extraction of very good learning materials, graduation design useful, Graduate School of modern signal processing operations, contains the array signal processing of common algorithms, analysis of time series data of Mellin Transform tool.