Expressway and Road Area Deformation Monitoring Research Based on InSAR Technology in Isolated Permafrost Area

To monitor and predict deformation of expressway and road area in isolated permafrost area, depending on Bei'an to Heihe (Beihei) highway extension project, the interferometric synthetic aperture radar (InSAR) technology was introduced. By the use of Differential interferometric synthetic aperture radar (D-InSAR) and Interferometric Point Target Analysis (IPTA) method and the archive ENVISAT-ASAR data to analysis the deformation of Beihei expressway and road area. The primary result was acquired from IPTA method .The application feasibility and perspective of InSAR technology was proposed.