ABSTRACT

The DInSAR techniques for deformation measurement are mainly based on SAR data acquired by the following spaceborne sensors: ERS-1/2, ASARENVISAT, RADARSAT-1, JERS and ALOS-PALSAR. ERS-1 and 2 (C-band) have an important historical archive, which ranges from 1991 to date. ERS-2 is expected to be operated until 2011. The ASAR sensor (C-band) onboard ENVISAT represents an important

12.1 INTRODUCTION

This chapter addresses two main applications of SAR data. The first one, deformation measurement, is based on the DInSAR techniques, while the second one, DSM generation, is based on the InSAR techniques. A comprehensive review of SAR interferometry is given by Rosen et al. (2000), while Crosetto et al. (2005b) provide a review of the state-of-the-art of DInSAR. The primary objective of this chapter is to review the recent advances in InSAR and DInSAR techniques. Considering approximately the last four years, this work highlights the most innovative developments, both from the algorithmic and application viewpoints.