InSAR干涉条纹图处理中，对噪声进行滤波是非常关键的一步。该文在分析现有滤波算法的基础上，考虑了干涉条纹图方向性特点，提出了基于旋滤波的InSAR干涉条纹图滤波方法。可以有效地去除残点对相位解缠的影响，同时保持相位信息不受损害。对仿真数据及真实InSAR数据的处理结果证明了该方法的有效性。

Noise filtering is a critical step in the InSAR interferogram processing. This article proposes a novel InSAR interferogram filtering method based on spin filtering with a thorough consideration of the directional features of interferograms. The method is proved effective in the elimination of the influence that residues have on phase unwrapping and keeps phase unaffected at the same time. Its effectiveness is exemplified by the results of both simulated InSAR data and real InSAR data processing.

TN95