应用Fourier分析,研究了R-滤子的谱性质,并且证明了R-滤子是最小二乘方多项式法则的推广,在此基础上给出了R-滤子的几何解释.
Applying the Fourier analysis, the spectral properties of the R-filters are studied. Further, it was proved that R-filters is a generalization of least squares polynomial adjustment. And the geometric interpretation of R-filters was given.