使用大量的有限元法求解偏微分方程，有PMUSIC 校正前和校正后的比较，信号维数的估计，用于建立主成分分析模型，主要为数据分析和统计，有CDF三角函数曲线/三维曲线图。- Using a large number of finite element method to solve partial differential equations, A relatively before correction and after correction PMUSIC, Signal dimension estimates, Principal component analysis model for establishing, Mainly for data analysis and statistics, There CDF trigonometric curve/3D graphs.