InSAR геометрия и базови операции

Abstract

In the present work based on geometrical interpretation of Inverse Synthetic Aperture Radar (InSAR) scenario, main parameters, characteristics and operations over InSAR data are defined. SAR interferogram and interferometric phase SAR equations are derived and procedure of interferogram flattening is given. The procedures of terrain motion evaluation and differential interferogram generation are presented. Basic operations including rectification of the elevation map, co-registration, and coherence evaluation, and phase unwrapping are discussed. Numerical experiment is carried out to verify geometrical interpretation of the interferogam generation and main operation performance.