SAR pseudo differencial interferogram modeling

Abstract

This work addresses an algorithm of Synthetic Aperture Radar (SAR) interferogram modeling to evaluate surface displacement. The interferogram obtained is called pseudo differential interferogram. Measurements of two SAR satellites placed in one and the same point of observation are used. Linear frequency modulated emitted signal is used to produce reflected by the surface SAR signal. Two-dimensional Fourier transform is applied to extract two single look complex (SLC) images. Pseudo differential interferogram showing the ground displacement is computed. To verify proposed model a numerical experiment realization implemented in MATLAB® environment is presented.