The characterization of microwave subsurface holographic RADAR sensors is not simple because the investigated medium is generally not homogeneous, and the soil electromagnetic properties change with moisture content. Commonly, holographic radars designed for terrain investigations use sand-box testbeds. To ensure the homogeneity of the medium and a well-defined value of dielectric permittivity and conductivity (attenuation), we designed and fabricated a testbed filled with water. With a solution of Sodium Chloride concentration at room temperature, it is possible to obtain a specific dielectric permittivity and the desired attenuation. In this paper we describe the design process, the fabrication, and a preliminary experiment with distilled water using a plastic candy box as a target. This approach to the fabrication of a RADAR testbed guarantees the repeatability of the measurements reducing the number of uncontrolled variables in laboratory experiments.

Water-filled testbed modeling, design, and fabrication for performance validation of a holographic subsurface RADAR antenna / Bossi L.; Falorni P.; Capineri L.. - ELETTRONICO. - (2021), pp. 1-4. ((Intervento presentato al convegno 11th International Workshop on Advanced Ground Penetrating Radar (IWAGPR) tenutosi a Malta [10.1109/IWAGPR50767.2021.9843147].

Water-filled testbed modeling, design, and fabrication for performance validation of a holographic subsurface RADAR antenna

Bossi L.
Writing – Original Draft Preparation
;
Falorni P.
Membro del Collaboration Group
;
Capineri L.
Writing – Review & Editing
2021

Abstract

The characterization of microwave subsurface holographic RADAR sensors is not simple because the investigated medium is generally not homogeneous, and the soil electromagnetic properties change with moisture content. Commonly, holographic radars designed for terrain investigations use sand-box testbeds. To ensure the homogeneity of the medium and a well-defined value of dielectric permittivity and conductivity (attenuation), we designed and fabricated a testbed filled with water. With a solution of Sodium Chloride concentration at room temperature, it is possible to obtain a specific dielectric permittivity and the desired attenuation. In this paper we describe the design process, the fabrication, and a preliminary experiment with distilled water using a plastic candy box as a target. This approach to the fabrication of a RADAR testbed guarantees the repeatability of the measurements reducing the number of uncontrolled variables in laboratory experiments.
2021 11th International Workshop on Advanced Ground Penetrating Radar (IWAGPR)
11th International Workshop on Advanced Ground Penetrating Radar (IWAGPR)
Malta
Goal 9: Industry, Innovation, and Infrastructure
Bossi L.; Falorni P.; Capineri L.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2158/1280484
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