插值与拟合，解方程，数据分析，鲁棒性好，性能优越，最小均方误差（MMSE）的算法，结合PCA的尺度不变特征变换(SIFT)算法，多元数据分析的主分量分析投影，是信号处理的基础，可以广泛的应用于数据预测及数据分析。- Interpolation and fitting, solution of equations, data analysis, Robustness, superior performance, Minimum mean square error (MMSE) algorithm, Combined with PCA scale invariant feature transform (SIFT) algorithm, Principal component analysis of multivariate data analysis projection, Is the basis of the signal processing, Can be widely used in data analysis and forecast data.