3D-Aggregate Quantitative Imaging: Experimental Results and Polarization Effects

Author

Eyraud, Christelle ; Geffrin, Jean-Michel ; Litman, Amélie

Author_Institution

Inst. Fresnel, Univ. Paul Cezanne Aix-Marseille III, Marseille, France

Volume

59

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1237

Lastpage

1244

Abstract

We present reconstructions of an aggregate of small spheres from experimental scattered fields using a working frequency of 18 GHz. This target presents at the same time a complex 3D shape and a low-contrast permittivity. Concerted experimental and numerical efforts have enabled to obtain accurate reconstructions. In particular, we took into account the real random noise via a Bayesian framework. Reconstructions have been realized with scattered fields measured in different polarization cases: the results are compared and discussed.

Keywords

Bayes methods; electromagnetic wave polarisation; electromagnetic wave scattering; image reconstruction; microwave imaging; permittivity; random noise; 3D-aggregate quantitative imaging; complex 3D shape; experimental scattered fields; frequency 18 GHz; low-contrast permittivity; polarization effects; random noise; small sphere aggregate reconstruction; Aggregates; Antenna measurements; Noise; Permittivity; Permittivity measurement; Receivers; Three dimensional displays; 3D inverse scattering problem; Aggregate; Bayesian formulation; microwave analogy; microwave imaging;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2011.2109353

Filename

5706357