Abstract
In this letter, we focus on an imaging procedure that retrieves the complex permittivity map of an investigation domain from electromagnetic scattered field measurements. The transmitter and the receiver are independently moved along two parallel lines of finite extent. In such a configuration, the antenna effects are of drastic importance. We propose thus a quantitative modeling of the antennas that does not require additional calibration process. The antennas model is completely incorporated in the inversion procedure and allows to recover tubes whose diameters are of the order of [(λ)/5].
Highlights
LECTROMAGNETIC wave probing is an interesting tool to obtain the physical features of unknown targets
A keypoint when dealing with quantitative imaging and with experimental data is the calibration procedure
We have presented a complete quantitative imaging procedure from measurements performed on line segments
Summary
LECTROMAGNETIC wave probing is an interesting tool to obtain the physical features of unknown targets All the authors are with Aix Marseille Universite, CNRS, Centrale Marseille, Institut Fresnel, UMR 7249, 13397, Marseille, France pattern of each antenna The advantage of this antenna model is that it does not require addition calibration process: no extra network analyzer calibration, no antennas phase centers determination, no time gating, no reference target. Such a model can be incorporated in a finite element code [9] and enables a direct and quantitative comparisons of the measured and simulated fields.
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