Asar Multi-polarization Images Phase Difference: Assessment in the Framework of Persistent Scatterers Interferometry

The technique of Persistent Scatterers Interferometry allows the accurate measurement of ground displacements and overcomes the drawbacks of classical differential interferometry. Recently, the phase measurement continuity between ERS and ASAR has been demonstrated. In this contribution, we propose an approach for the use of ASAR IMS HH images together with ERS data and the ASAR ERSlike mode. In this framework, we discuss how the availability of ASAR AP mode images can be subsequently used to lift the differential polarimetric phase ambiguity between VV and HH polarization images.