Title :
Experimental assessment of the PS-cal technique over COSMO-SKYMED high resolution SAR data
Author :
Giudici, Davide ; D´Aria, Davide ; Mancon, Simone ; Guarnieri, Andrea Monti ; Tebaldini, Stefano
Author_Institution :
ARESYS, Milan, Italy
Abstract :
The paper discusses methods for radiometric calibration of repeat-pass interferometric SAR stacks based on Persistent Scatterers. Coherent and non-coherent approaches for the estimation of the radiometric gain are compared. Furthermore, an estimator of the beam pointing in elevation in proposed. Evaluation of performances is carried out basing on both simulated and COSMO-SKYMED data.
Keywords :
calibration; estimation theory; radar interferometry; radiometry; synthetic aperture radar; COSMO-SKYMED data; PS-cal technique; coherent approach; elevation beam pointing estimation; high resolution SAR data; noncoherent approach; persistent scatterer approach; radiometric calibration method; radiometric gain estimation; repeat-pass interferometric SAR stack; Antennas; Calibration; Estimation; Gain; Nickel; Noise; Standards;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350600
