This module enables the generation of DEM’s (insar technique) and surface deformation maps (dinsar technique). State-of-the-art methodology, applied to data acquired from SAR sensors, generate accurate (up to a vertical resolution of few meters) and detailed surface and terrain height products. The dinsar technique can detect centimeter-scale displacements over time spans of days to years. The interferometry module is applicable in geophysical monitoring of natural hazards like earthquakes, volcanoes and landslides. It is also useful in structural engineering, particularly for the monitoring of subsidence and structural stability.

The Interferometric Stacking Module integrates point-based (PS-like) and area-based (SBAS-like) techniques for the processing of interferometric stacks. This combined approach enables users to obtain accurate results on both point and distributed targets.

Accessory modules

Persistent Scatterers (PS)

Enables users to detect very small displacements (mm scale) and to infer the deformation velocity – and its variation over the time – in particular for very stable (man-made) reflectors that might have independent displacements in respect to the surrounding areas.

Small Baseline Subset (SBAS)

A complementary method that exploits Differential Synthetic Aperture Radar interferometry (difsar) techniques to analyse stacks of SAR acquisitions to extract small deformations over large areas, when no point targets are identified but large, correlated displacements occur over natural targets.

By combining these two approaches, it is possible to analyse deformation phenomena that affects both extended and localised structures related to natural or man-induced phenomena.