Three-dimensional through-wall imaging under ambiguous wall parameters
| Autor: | Rocco Pierri, Raffaele Solimene, Francesco Soldovieri, G. Prisco |
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| Přispěvatelé: | Solimene, Raffaele, Soldovieri, F., Prisco, G., Pierri, Rocco |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Permittivity
Field (physics) Singular valued decomposition Geometry Iterative reconstruction Dielectric Through the wall imaging Inverse problem Inverse scattering problem Singular value decomposition General Earth and Planetary Sciences Linear inverse scattering Electrical and Electronic Engineering Reconstruction procedure Mathematics |
| Popis: | A through-wall imaging problem for a 3-D geometry is considered. Scatterers are located beyond a wall represented by a dielectric slab whose features are unknown or known with some degree of uncertainty. A two-step imaging procedure is presented. First, the thickness and the dielectric permittivity of the wall are estimated by a simple procedure which takes into account that actual measurements concern the total scattered field (i.e., the field reflected by the wall plus the one scattered by the obscured scatterers). Then, the problem is cast as a linear inverse scattering problem and solved by means of a truncated-singular value decomposition algorithm. In particular, a 2-D sliced approach is employed to obtain the 3-D scene. Numerical examples are shown to assess the effectiveness of the reconstruction procedure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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