Paper Info
Title
Requirements on the calibration of Hybrid-Compact SAR
Abstract
The state of the art in compact SAR calibration is reconsidered. It is shown that all the existing Compact calibration methods are built on the assumption that the Compact transmits a perfect circular polarization (CP). Unfortunately, the actual technology does not permit the generation of a perfect CP wave. The impact of non circularity of the transmitted polarization on Compact polarization information is assessed. The variations with incidence angles of the helicity and ellipticity of the transmitted polarization are simulated for C-band and L-band Compact SAR using Radarsat-2 and Alos data. This permits quantification of the resulting radiometric error on RH and RV dual-pol measurements. The impact of the non circularity of the transmitted polarization on the degree of polarization (DoP) and Compact polarization synthesis is also quantified. The requirements on the calibration of compact SAR for the extraction of a meaningful polarimetric SAR information from compact, are then setup.
Year
DOI
Venue
2014
10.1109/IGARSS.2014.6946623
Geoscience and Remote Sensing Symposium
Keywords
DocType
ISSN
calibration,radar polarimetry,synthetic aperture radar,Alos data,C-band compact SAR,DoP,L-band compact SAR,RH dual-pol measurement,RV dual-pol measurement,Radarsat-2 data,circular polarization,compact polarization information assessment,degree of polarization,hybrid-compact SAR calibration,perfect CP wave generation,polarimetric SAR information,radiometric error
Conference
2153-6996
Citations 
PageRank 
References 
4
0.51
2
Authors
2
Name
Order
Citations
PageRank
Ridha Touzi121425.43
François Charbonneau2224.46