The invention belongs to the technical field of
terrain remote sensing monitoring, and particularly relates to a
surface deformation monitoring method based on an intermittent stacking
time sequence InSAR (Intermittent
Synthetic Aperture Radar), which comprises the following steps of: firstly, acquiring a plurality of SAR images, high-precision
terrain data and
orbit data of a target area in a lifting
orbit within a period of time; performing geographical registration, interference combination selection, space-time filtering and
phase unwrapping on the SAR image to generate a
time sequence interferogram; calculating an
annual average deformation rate of each pixel point in the interferogram, and generating an
annual average deformation rate result of the target area; and finally, generating a suspicious
landslide polygon according to an
annual average deformation rate result, and performing
visual interpretation and field investigation to obtain a real area of the
landslide polygon. According to the method, result missing caused by the intermittent coherence characteristic of the pixel points can be avoided, the pixel selection has higher
latitude, higher coverage can be achieved, the requirement for computing power is remarkably reduced, and a deformation rate result in a low-coherence environment can be rapidly obtained.