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MULTID FOCUSING FOR ACCURATE TARGET LOCATION AND TRACKING OF SLOW MOVEMENTS: RESULTS AND VALIDATION

Multi-Dimensional (MultiD) SAR imaging is a coherent data combination technique aimed to space (3D) and space-velocity (4D) focusing. It extends the concept of SAR interferometry and Differential SAR Interferometry and gives new options for the analysis and monitoring of ground scenes at high resolution. We present the results obtained by processing ERS real data. Atmospheric and low resolution deformation monitoring, used for the phase calibration of high resolution data, are obtained via the Enhanced Spatial Differences (ESD) technique. Ongoing work on 3D and 4D performances is also described.