Interferometric SAR multitemporal processing: Techniques and applications

Abstract

SAR Interferometry (InSAR) is a technology that makes it possible to extract ground deformation measurements from spaceborne radar sensors with a centimeter level precision. By processing long series of SAR images, InSAR techniques can be pushed forward up to reaching the millimeter sensitivity. In this way, data acquired by SAR satellites can be effectively used for monitoring not only ground movements but also tiny displacement of structures, dams, buildings, bridges and more. In this chapter, written at the beginning of year 2014, we give a brief overview of the concepts behind InSAR and Multi-Temporal InSAR techniques. Examples of results and processing steps implemented by Sarproz (www.sarproz.com) are shown and the interested reader can deepen his understanding of the topic by carrying out exercises on his own.