Synopsis
1. Resume of basic SAR concepts. Resolution and synthetic aperture principle. Geometric distortions. Speckle. Sampling and acquisition constraints. Specific acquisition modes: spotlight and TOPS.
2. Interferometric SAR basics. 3D with stereoscopic vision, sensitivity and accuracy. Image co-registration. “Flat Earth” contribution. Fringe frequency and ambiguity height. Decorrelation and coherence. Spatial decorrelation and critical baseline. Unwrapping. Geolocalization. Missions for DEM on global scales.
3. Differential SAR Interferometry. Sensitivity and ambiguities for deformation. Zero Baseline Steering. Application to Earthquakes and volcanic areas. Atmospheric disturbances.
4. Multitemporal SAR Interferometry. Data model for multiple acquisitions. Multipass processing approaches: Coherent Stacking Interferometry and Persistent Scatterers Interferometry. Small Baseline approach. Application to small scale deformation monitoring: volcanic and seismic-active areas, subsidence. Persistent Scatterers Interferometry for full resolution deformation monitoring. Application to building monitoring. The typical two-scale analysis.
5. Tomographic SAR. Data model and inversion for 3D imaging. Differential SAR Tomography (4D imaging). Examples. Persistent Scatterer detection. Application with Very high Resolution imaging and layover. Thermal deformation. Use of multilook in PSI and TomoSAR: SqueeSAR and CAESAR. Applications. Polarimetric SAR tomography.
- Docente: SIMONA VERDE