是信号处理的基础，用于特征降维，特征融合，相关分析等,基于matlab GUI界面设计,多元数据分析的主分量分析投影，基于SVPWM的三电平逆变的matlab仿真。- Is the basis of the signal processing, For feature reduction, feature fusion, correlation analysis, Based on matlab GUI interface design, Principal component analysis of multivariate data analysis projection, Based on SVPWM three-level inverter matlab simulation.