中文说明： 多元数据分析的主分量分析投影，做视觉测量的上位机代码,自己编的5种调制信号，利用最小二乘法进行拟合多元非线性方程，有循环检测，周期性检测，代码里有很完整的注释和解释。
English Description：
Multivariate data analysis principal component projection analysis and visual measurement of PC code, their own series of five kinds of modulation signal, using least squares fitting multivariate nonlinear equation, loop detection, periodic testing, code is very complete annotated and explained.