DEM DEM geolocation DSM GNSS Gaofen-3 satellite Geography InSAR Qinghai-Tibet Engineering Corridor Research & information: general SAR imaging SBAS-InSAR ScanSAR coastal urban area coherence coefficient coherent accumulation computing resource management data cross-placement deformation deformation monitoring drilling solution mining helicopter landing heterogeneous array hierarchical adaptive surface fitting interferometric coherence interferometric radar interferometric synthetic aperture radar (InSAR) interferometry kurtosis markov random field multi-baseline (MB)