emd 经验模态分解过程，及其相关应用，以及具体过程示例(emd Empirical mode decomposition process, and its related applications, as well as specific process examples)

EOF经验正交分解，是一种主成分分析方法用python语言实现，EOF计算得到了几个模态和对应的时间系数(EOF---Orthogonal decomposition of experience, is a principal component analysis method using python language, EOF calculated several modalities and the corresponding time coefficient)