Differential interferometry SAR

SAR differential interferometry - Analysis techniques

Satellite differential interferometry SAR for the measurement of ground displacements is a remote sensing technique that allows the measurement of surface deformations with an accuracy on the order of one centimetre and in some cases, even a few millimetres.

The satellites

Here are the main characteristics of the satellites used for DInSAR analysis. Two groups of satellites may be distinguished based on their period of operation: the ERS-1, ERS-2 and ENVISAT satellites and the Sentinel-1 satellite constellation, which currently includes two satellites.