Numerical parametric study of buried target ground-penetrating radar signature

Idesbald C. van den Bosch; Pascal Druyts; Marc Acheroy; Isabelle Huynen

doi:10.1117/12.663764

18 May 2006 Numerical parametric study of buried target ground-penetrating radar signature

Idesbald C. van den Bosch, Pascal Druyts, Marc Acheroy, Isabelle Huynen

Proceedings Volume 6217, Detection and Remediation Technologies for Mines and Minelike Targets XI; 621720 (2006) https://doi.org/10.1117/12.663764
Event: Defense and Security Symposium, 2006, Orlando (Kissimmee), Florida, United States

Abstract

The assessment of the performances of ground-penetrating radar (GPR) in humanitarian demining is an important problem. These performances are related to the relative strength of the target radar response with respect to that of the soil. Many parameters influence both responses. The physical and geometrical parameters that influence the target signature include the soil electromagnetic (EM) constitutive parameters, the target depth and orientation with respect to the soil surface, the antenna height and the target EM and geometrical properties. This work presents a numerical parametric study of the soil and target radar signatures. The advantages of the numerical approach are: it allows for a separate study of the influence of each parameters on the radar responses, it is fast, cheap, generic with regards to hardware, and finally it is not prone to experimental errors and hardware failures or misuse. Moreover it is always possible to link the numerical experiments with a particular hardware by characterizing this latter. However, a number of simplifications, such as modeling the soil as a planar multilayered medium, are introduced to keep the problem tractable. This study yields surprising results, such as for example the possibility of considering the target in homogeneous space for computing its signature, as soon as it is a few centimeters deep. The target considered in the numerical experiments is a dielectric cylinder representing an AP mine, with diameter 6 cm and height 5 cm, and ε_rt=3. These values are chosen to approach as much as possible the physical properties of the M35BG AP mine, which is small and therefore difficult to detect.

Citation Download Citation

Idesbald C. van den Bosch, Pascal Druyts, Marc Acheroy, and Isabelle Huynen "Numerical parametric study of buried target ground-penetrating radar signature", Proc. SPIE 6217, Detection and Remediation Technologies for Mines and Minelike Targets XI, 621720 (18 May 2006); https://doi.org/10.1117/12.663764

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KEYWORDS

Ground penetrating radar

Radar

Mining

Antennas

Electroluminescence

Electromagnetism

General packet radio service

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