Monitoring Building Activity by Persistent Scatterer Interferometry

In many countries globally, information for new buildings is either scarce or incomplete. an effort to bridge this gap approach based on public domain synthetic aperture radar (SAR) satellite data introduced. The method the persistent scatterer interferometry (PSI) technique in order detect newly constructed and estimate their heights a selected case study area Athens, Greece. overall objective derive timely spatial building activity. A key concept of residual height, i.e., difference height each point compared reference that suitably selected. used are acquired by Sentinel-1 satellite. Both ascending descending orbits dual polarizations (VV/VH) used. results show as much 70% can be detected at vertical accuracy approximately 2.5 m, which sufficient determine number stories per building. Overall, proposed provide efficient insight regarding activity significant layer urban studies rapidly changing world.