Synthesis of Interferogram Based on DEM of Dilijan in Caucasus Region, Armenia

Abstract

Abstract In this paper an algorithm for synthesis of a Synthetic Aperture Radar (SAR) interferogram is suggested. Two Single Look Complex (SLC) images are derived which are based on the Digital Elevation Map (DEM) of Dilijan region in Armenia. Using such kind of data SLC images of the SAR interferometric pair are produced by measurements of distances from two SAR satellites to each pixel of the area of interest at the moment of SAR image reconstruction. The unwrapped phases can be calculated through the interferometric pair and then the wrapped phases can be disclosed. As a result the interferometric fringes of the surface of observation can be generated. A numerical experiment is carried out in MATLAB environment and the results are provided. The algorithms suggested in this study can be exploited for the purposes of simulating, modeling and investigating Interfrometric SAR (InSAR) processing steps, and generating synthetic interferograms of particular areas on the Earth.