METHOD FOR PROVIDING AUTOMATIC MONITORING SERVICE WITH CONTINUITY OF SENTINEL SATELLITE IMAGERY BASED ON PERMANENT SCATTERER INTERFEROMETRIC SYNTHETIC APERTURE RADAR

摘要

Provided is a method for providing an automatic monitoring service with continuity of a sentinel satellite imagery based on a permanent scatterer interferometric synthetic aperture radar (PSInSAR), to measure ground displacement around an urban area. According to the present invention, the method comprises the following steps of: using a preset standard format file and a digital altitude model to convert the sentinel satellite imagery into subset images of a raw image, which is a satellite imagery and importing the subset image in an environment visualizing (ENVI) format; using the subset image and the ENVI format to generate a permanent scatterer (PS) connection graph to select a master image; generating an interferogram between the master image and at least one slave image; when surface displacement of at least one area, from which the satellite imagery is photographed, is set to a value exceeding a preset tolerance range, adjusting at least one preset parameter to extract and trace a permanent scatterer; and monitoring the surface displacement based on a phase change of the extracted and traced permanent scatterer.