TY - GEN
T1 - Rotated dihedral and volume scattering behavior in cross-polarimetric SAR
AU - Hong, Sang Hoon
AU - Wdowinski, Shimon
PY - 2010/12/1
Y1 - 2010/12/1
N2 - In this study we analyze Radarsat-2 quadruple polarization (quad-pol) mode data acquired over the Everglades wetlands in south Florida. We analyzed the phase information of each polarization mode independently, and obtained similar fringe patterns representing water level changes in all four interferograms. It is surprising, because common scattering theories indicate that cross-polarization (cross-pol) observations reflect volume scattering due to the interaction of the radar signal with upper sections of the vegetation. However, our cross-pol interferometric observations suggest that the cross-pol signal reached the water surface and scattered back to the satellite by a rotated dihedral double bounce mechanism. Based on these new observations, we developed a new scattering formulation that accounts also for double bounce component in cross-pol.
AB - In this study we analyze Radarsat-2 quadruple polarization (quad-pol) mode data acquired over the Everglades wetlands in south Florida. We analyzed the phase information of each polarization mode independently, and obtained similar fringe patterns representing water level changes in all four interferograms. It is surprising, because common scattering theories indicate that cross-polarization (cross-pol) observations reflect volume scattering due to the interaction of the radar signal with upper sections of the vegetation. However, our cross-pol interferometric observations suggest that the cross-pol signal reached the water surface and scattered back to the satellite by a rotated dihedral double bounce mechanism. Based on these new observations, we developed a new scattering formulation that accounts also for double bounce component in cross-pol.
KW - Everglades
KW - Polarimetric decomposition
KW - Polarimetric synthetic aperture radar (POLSAR)
KW - Rotated dihedral scattering
KW - Volume scattering
KW - Wetland InSAR
UR - http://www.scopus.com/inward/record.url?scp=78650899952&partnerID=8YFLogxK
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U2 - 10.1109/IGARSS.2010.5654326
DO - 10.1109/IGARSS.2010.5654326
M3 - Conference contribution
AN - SCOPUS:78650899952
SN - 9781424495658
SN - 9781424495665
T3 - International Geoscience and Remote Sensing Symposium (IGARSS)
SP - 3138
EP - 3141
BT - 2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
T2 - 2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
Y2 - 25 July 2010 through 30 July 2010
ER -