Soil modification studies for enhanced mine detection with ground-penetrating radar

Joel Tidmore Johnson; Jatapum Jenwatanavet; Nan N. Wang

doi:10.1117/12.357095

2 August 1999 Soil modification studies for enhanced mine detection with ground-penetrating radar

Joel Tidmore Johnson, Jatapum Jenwatanavet, Nan N. Wang

Proceedings Volume 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV; (1999) https://doi.org/10.1117/12.357095
Event: AeroSense '99, 1999, Orlando, FL, United States

Abstract

The detection of non-metallic anti-personnel landmines with ground penetrating radar (GPR) is complicated by low dielectric contrasts with the surrounding background medium. Previous studies have shown that the addition of water can improve dielectric contrasts but also increases loss so that target detectability is not necessarily improved. Previous studies have also shown that the addition of liquid nitrogen to wet soils can reduce background medium loss and restore target visibility. In this paper, further waveguide studies of target detection through a controlled depth of nitrogen penetration are reported, and it is shown that scattering from known depth targets can be significantly enhanced if an optimal amount of nitrogen is added. The procedure can also be generalized to unknown depth targets if measurements are taken as gradually increasing amounts of liquid nitrogen are added. Both analytical models and waveguide experiments are presented to illustrate these ideas. Finally, initial test of the soil modification techniques developed through waveguide experiments are reported with a dielectric rod GPR system; results indicate that these methods should be applicable to general GPR sensors.

Citation Download Citation

Joel Tidmore Johnson, Jatapum Jenwatanavet, and Nan N. Wang "Soil modification studies for enhanced mine detection with ground-penetrating radar", Proc. SPIE 3710, Detection and Remediation Technologies for Mines and Minelike Targets IV, (2 August 1999); https://doi.org/10.1117/12.357095

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available