本文以电工学正弦理论为基础；以经典的自然采样法为依托；以电子变流技术为研究对象，全面阐述了SPWM波的基本特征与个性，旨在为实验及测试提供规范的参照基准并回归于应用数学。-In this paper, the theory of Sine electrotechnics foundation to classic based on natural sampling electronic converter technology as the research object, comprehe

Normalized data model, modal vibration, Stepwise linear regression, Maximum Likelihood (ML) criteria and maximum a posteriori (MAP) criterion.

Normalized data model, modal vibration, Principal component analysis model for establishing, Least-squares regression analysis algorithm.