title: Role of diversity on the singular values of linear scattering operators: the case of strip objects.
abstract: The singular value decomposition of the far-zone scattering operator for weak strip-like scattering objects is studied under multiple view and/or multiple frequency illuminations. The aim is to highlight how such diversities impact the number of degrees of freedom (NDF) of the scattering problem. When the angles of incidence and/or frequencies vary within discrete finite sets, the singular values are analytically determined. It is shown that they exhibit a multistep behavior. For the continuous case, upper and lower bounds are found, which allows us to obtain estimations for the NDF dependending on the parameters of the configuration.
authors: Raffaele
authors: R
authors: Solimene
authors: Maria Antonia
authors: MA
authors: Maisto
authors: Rocco
authors: R
authors: Pierri