1. Real Representation of the Polarimetric Scattering Matrix for Monostatic Radar.
- Author
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Ciuca, Madalina, Vasile, Gabriel, Anghel, Andrei, Gay, Michel, and Ciochina, Silviu
- Subjects
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S-matrix theory , *SYNTHETIC aperture radar , *RADAR , *REMOTE sensing , *SYNTHETIC apertures , *SYMMETRIC matrices - Abstract
Synthetic aperture radar with polarimetric diversity is a powerful tool in remote sensing. Each pixel is described by the scattering matrix corresponding to the emission/reception polarization states (usually horizontal and vertical). The algebraic real representation, a block symmetric matrix form, is introduced to adopt a more comprehensive framework (non-restricted by reciprocity assumptions) in mapping the scattering matrix by the consimilarity equivalence relation. The proposed representation can reveal potentially new information. For example, its eigenvalue decomposition, which is itself a necessary step in obtaining the consimilarity transformation products, may be useful in characterizing the degree of reciprocity/nonreciprocity. As a consequence, it can be employed in testing the reciprocity compliance assumed with monostatic PolSAR data. Full-wave simulated polarimetric data confirm that oriented scatterers can present complex eigenvalues, even with the monostatic geometry. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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