本篇文章着重对高斯回归滤波器的原理与算法进行了简单的介绍。相对于其它传统方法，高斯滤波器有许多自己的优势。在现如今的工业领域中，主要用高斯滤波器将粗糙度信号从实测信号中提取出来。因为高斯回归滤波器的这些优点国际标准ISO16610已将其列为标准滤波器，主要用它来进行表面粗糙度的测量与研究。(This article focuses on the Gaussian regression filters principles and algorithms for a simple introduction. Compared to other traditional methods,gaussian filter has many advantages.Gaussian filter is mainly used for roughiness of the signal from the measured signal and moire signals,shape and form error signal.Because of these advantages Gaussian regression filter has listed it as the international standard ISO16610 standard filter, which is mainly used for surface roughness measurement and research.)