Generation of High Resolution DEM of Urban Areas via Airborne SAR Interferometry

The paper addresses the analysis of high resolution interferograms relevant to urban areas and achieved by means of the X-band OrbiSAR system. The OrbiSAR system is an airborne SAR sensor capable of acquiring single pass and repeat pass interferometric SAR data at very high resolution. Such a system is thus capable of providing very appealing single-pass and repeat-pass interferometric data-sets characterized by high resolution. In this work, two data-sets, acquired over the urbanized cities of São José dos Campos and São Sebastião-SP, Brazil, will be analyzed with a twofold aim: first, to provide insight for the retrieval of high accuracy DEM on urbanized areas, second to show some results obtainable with the airborne Differential SAR Interferometry technique over urban areas. © 2013 IEEE.