Extracting the Earth Numerical Model via Interferomtry Images of Synthetic Aperture Radar

In this paper, the concepts, techniques and application of IFSAR (Inter Frometric Synthetic Aperture Radar) are widely considered. First of all the basic equations of IFSAR are presented for obtaining the altitude via measuring phase interferometric which is derived from simple geometric conditions. Afterwards, various Imaging methods were introduced. Finally the effect of altitude on radar phase signal was studied. Subsequently Phase difference is necessary for extracting the earth numerical model. The affect of this condition is studied thereafter. Phase difference is computed numerically in interferometric. Eventually our paper concluded by representing the essential steps for preparing the altitude map of IFSAR.