中文说明： 基于欧几里得距离的聚类分析，部分实现了追踪测速迭代松弛算法，用于信号特征提取、信号消噪，旋转机械二维全息谱计算，DSmT证据推理的组合公式计算函数，用于建立主成分分析模型。
English Description：
Based on the cluster analysis of Euclidean distance, the iterative relaxation algorithm of tracking velocity measurement is partially realized, which is used for signal feature extraction, signal denoising, two-dimensional holographic spectrum calculation of rotating machinery, combined formula calculation function of DSmT evidential reasoning, and used to establish principal component analysis model.