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Article Dans Une Revue IEEE Geoscience and Remote Sensing Letters Année : 2014

Invariant Contrast Parameters of PolInSAR Homogenous RVoG Model

Résumé

It has been shown that the Cramer–Rao bound (CRB) can be helpful to characterize vegetation and ground height estimations based on the homogenous random volume over ground (RVoG) model and polarimetric interferometric SAR techniques. However, this model is a function of 20 unknown parameters, which makes the performance analysis a tedious task. We show that the group invariance property of the RVoG model can greatly reduce the complexity of the analysis since the CRB of the vegetation and ground heights only depends on four unknown parameters instead of 20. Furthermore, for the considered situations analyzed in this letter, only three of these four parameters have a nonnegligible influence and can be interpreted as contrast parameters. Index Terms—Cramer–Rao bound (CRB), polarimetric inter-ferometric SAR (PolInSAR), random volume over ground (RVoG) model.
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Dates et versions

hal-01221764 , version 1 (16-07-2021)

Identifiants

Citer

Philippe Réfrégier, Antoine Roueff, Aurélien Arnaubec, Pascale Dubois-Fernandez. Invariant Contrast Parameters of PolInSAR Homogenous RVoG Model. IEEE Geoscience and Remote Sensing Letters, 2014, 11 (8), p. 1414-1417. ⟨10.1109/LGRS.2013.2294343⟩. ⟨hal-01221764⟩
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