TY - GEN
T1 - Numerical parametric study of buried target ground-penetrating radar signature
AU - Van Den Bosch, Idesbald
AU - Druyts, Pascal
AU - Acheroy, Marc
AU - Huynen, Isabelle
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
KW - Ground-penetrating radar
KW - Method of moments
KW - Mine detection
KW - Parametric study
KW - Soil radar signature
KW - Target radar signature
UR - http://www.scopus.com/inward/record.url?scp=33747353771&partnerID=8YFLogxK
U2 - 10.1117/12.663764
DO - 10.1117/12.663764
M3 - Conference contribution
AN - SCOPUS:33747353771
SN - 081946273X
SN - 9780819462732
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Detection and Remediation Technologies for Mines and Minelike Targets XI
T2 - Detection and Remediation Technologies for Mines and Minelike Targets XI
Y2 - 17 April 2006 through 21 April 2006
ER -