ALIFERIS , Iannis

Doctoral

European Research Universities on (TurningPoint) Cloud Nine

The paper deals with an iterative algorithm for reconstructing the complex permittivity profile of buried objects. The backscattered field is measured in a multistatic configuration at different frequencies. A Biconjugatc Gradient method is used to minimize a cost functional and a regularization procedure is applied using Edge-Preserving...

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The paper deals with an iterative algorithm for reconstructing the complex permittivity profile of buried objects. The backscattered field is measured in a multistatic configuration at different frequencies. A Biconjugatc Gradient method is used to minimize a cost functional and a regularization procedure is applied using Edge-Preserving...

International audience

The characterization of buried or non-buried objects generally constitutes an increasingly wide area of research with various applications. In this paper, we present a 2D microwave imaging algorithm taking into account both 2D-TM and 2D-TE polarization configurations. The development of a forward ...

In this paper, we present the results of image reconstructions of foreign object debris (FOD) based on 2D algorithms in the W-band (75-110 GHz). To test the feasibility of using 2D reconstruction algorithms, we first studied the relevance of two-dimensional assumption in the working frequency band for different typical debris. Thanks to the...

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This paper shows the interest to use a synthetic pulse radar system with ultra wide band antennas as sensors to improve the resolution of B-Scan images. The sensors are antennas based on the Vivaldi concept which have a bandwidth greater than one decade. Measurements were made on the LCPC geophysical test site and applied to pipe ...

This paper shows the interest to use a synthetic pulse radar system with ultra wide band antennas as sensors to improve the resolution of B-Scan images. The sensors are antennas based on the Vivaldi concept which have a bandwidth greater than one decade. Measurements were made on the LCPC geophysical test site and applied to pipe ...

The characterization of buried or non-buried objects generally constitutes an increasingly wide area of research with various applications. In this paper, we present a 2D microwave imaging algorithm taking into account both 2D-TM and 2D-TE polarization configurations. The development of a forward ...

Depuis la déclaration de Bologne (1998), les différents pays européens ont initié un processus de rapprochement des systèmes d'études supérieures européens qui a conduit à la création en 2010 de l'espace européen de l'enseignement supérieur (EHEA). Dans ce contexte, les universités européennes se sont engagées à formaliser les acquis...

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The development of SIMIS (Synthetic Impulse Microwave Imaging System), a microwave array of eight ultra-wideband Vivaldi-type ETSA antennas, employed to image unknown targets situated in an anechoic chamber, is presented. Real scattering data, collected via an RF multiplexer interfaced to a vector network analyzer, is imaged using the Time...