Process and conduction of interferometric phase for satellite images

The Digital Elevation Model (DEM) is used in many fields of earth science. It is generated from interferometry SAR (InSAR) using two co-registered radar Single Look complex (SLC) [1], [2] and [3]. This work concerns the exploitation of radar images SLC of the Algiers area acquired on 03 January and 04 January 1994. The former is taken as a master image and the latter as a slave image. We have developed an interferometric process starting with the implementation of a co-registration algorithm for our images, then the elimination of flat-earth phase from the interferogram and at the end we developed a filter in order to minimize the existing noise to have good results after the unwrapping step using our own developed method.