Title :
4D SAR Focusing: A Tool for Improved Imaging and Monitoring of Urban Areas
Author :
Fornaro, Gianfranco ; Reale, Diego ; Serafino, Francesco
Author_Institution :
Inst. for Electromagn. Sensing of the Environ. (IREA), Nat. Res. Council (CNR), Naples
Abstract :
4D (space-velocity) SAR focusing is applied to real data acquired over urban areas to determine the position, in 3D, and the deformation velocity of single and double scatterers interfering, at high resolution, in the same azimuth-range pixel. We discuss the procedure required to identify the presence of stable single and double scatterers after the elevation-velocity focusing. Moreover we present a technique for the separation of time series associated with interfering scatterers to measure their possible non linear temporal deformations.
Keywords :
geophysical signal processing; geophysical techniques; radar imaging; synthetic aperture radar; time series; 3D deformation velocity; 4D SAR focusing; 4D space-velocity SAR focusing; azimuth-range pixel; elevation-velocity focusing; time series separation; urban area monitoring; Electromagnetic scattering; Focusing; Image analysis; Monitoring; Radar polarimetry; Satellite antennas; Signal analysis; Spatial resolution; Tomography; Urban areas; 4D SAR imaging; SAR Differential Tomography;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4780132
