Article

Conservative Polarimetric Scatterers and Their Role in Incorrect Extensions of the Cameron Decomposition

Naval Surface Warfare Center, Dahlgren, VA
IEEE Transactions on Geoscience and Remote Sensing (impact factor: 2.89). 01/2007; DOI:10.1109/TGRS.2006.879115 pp.3506 - 3516
Source: IEEE Xplore

ABSTRACT The properties of conservative symmetric polarimetric scatterer scattering matrices are examined. It is shown that the unambiguous rotation angle for "conservative" symmetric polarimetric scatterers is the interval (-pi/4,+pi/4] as compared with (-pi/2,+pi/2] for nonconservative symmetric scatterers. Errors relating to the Cameron decomposition, which are recently introduced into the literature, are discussed. It is demonstrated that these errors arise from a faulty symmetric scatterer scattering matrix distance measure. This, in turn, leads to an improper mapping of the symmetric scatterer unit disk to a hemisphere. The correct mapping of the symmetric scatterer unit disk to the symmetric scatterer unit sphere is described

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Keywords

conservative symmetric polarimetric scatterer scattering matrices
 
correct
 
faulty symmetric scatterer scattering matrix distance measure
 
nonconservative symmetric scatterers
 
symmetric polarimetric scatterers
 
symmetric scatterer unit disk
 
symmetric scatterer unit sphere
 
unambiguous rotation angle
 

W.L. Cameron