Numerical parametric study of buried target ground-penetrating radar signature

Idesbald Van Den Bosch, Pascal Druyts, Marc Acheroy, Isabelle Huynen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 εrt = 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.

Original languageEnglish
Title of host publicationDetection and Remediation Technologies for Mines and Minelike Targets XI
DOIs
Publication statusPublished - 2006
EventDetection and Remediation Technologies for Mines and Minelike Targets XI - Kissimmee, FL, United States
Duration: 17 Apr 200621 Apr 2006

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6217 II
ISSN (Print)0277-786X

Conference

ConferenceDetection and Remediation Technologies for Mines and Minelike Targets XI
Country/TerritoryUnited States
CityKissimmee, FL
Period17/04/0621/04/06

Keywords

  • Ground-penetrating radar
  • Method of moments
  • Mine detection
  • Parametric study
  • Soil radar signature
  • Target radar signature

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