DocumentCode :
2597537
Title :
An inverse scattering based hybrid method for the measurement of the complex dielectric permittivities of arbitrarily shaped homogenous targets
Author :
Bozza, G. ; Brignone, Massimo ; Pastorino, Matteo ; Piana, Michele ; Randazzo, Andrea
Author_Institution :
Dept. of Biophys. & Electron. Eng., Univ. of Genoa, Genoa, Italy
fYear :
2009
fDate :
5-7 May 2009
Firstpage :
719
Lastpage :
723
Abstract :
In this paper we present a hybrid approach for the measurement of the complex dielectric permittivities of arbitrarily shaped homogeneous dielectric scatterers by using microwaves. The proposed method is organized in two stages: in the first one, the supports of the scatterers are retrieved by means of a new formulation of the linear sampling method, which is based on the no sampling approach; in the second one, the complex permittivities of the targets are estimated by means of a quantitative method, which searches the solution within the constraints provided by the previous step. In such a way, the efficiency of the new version of the linear sampling method is combined with the accuracy of quantitative procedures. The proposed methodology is assessed against noisy synthetic data, by using the ant colony optimization algorithm as a tool to estimate the dielectric parameters of the inspected targets.
Keywords :
dielectric bodies; inverse problems; microwave measurement; optimisation; permittivity measurement; sampling methods; ant colony optimization algorithm; arbitrarily shaped homogeneous dielectric scatterer; dielectric permittivity measurement; inverse scattering based hybrid method; linear sampling method; microwave measurement technique; Ant colony optimization; Dielectric measurements; Electromagnetic scattering; Geophysical measurements; Inspection; Inverse problems; Permittivity measurement; Sampling methods; Scattering parameters; Shape measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE
Conference_Location :
Singapore
ISSN :
1091-5281
Print_ISBN :
978-1-4244-3352-0
Type :
conf
DOI :
10.1109/IMTC.2009.5168544
Filename :
5168544
Link To Document :
بازگشت