Considering that Ground Penetrating Radar technology was refined for the initial detection of landmines, it’s a no-brainer that its place in humanitarian and military applications is well-deserved. Hence GPR systems can be used to detect dangerous objects before the system moves over and past them. This paper reviews the various methods for real time landmine detection using GPR.
UXO, Anti-tank and Anti-personnel mines
Unexploded Ordnance (UXO), unexploded bombs (UXBs) and explosive remnants of war (ERWs) are all an unfortunate problem for which GPR is the undoubtedly the most comprehensive solution.
Limitations of Metal detectors and other methods
Land mines with little or no traces of metal can be hard to detect by alternative means such as metal detectors. Secondly, metal detectors can’t distinguish between metal mines and other metallic debris.
Infrared (IR) Imaging only penetrates 10-15cm deep and requires set up and maintenance of sophisticated imaging systems in order to do so. GPR is very easy to set up and use.
Dogs can’t determine the precise location of mines for the fact that explosive odors penetrate surrounding vegetation by an average area of 10 meters, trace explosive particles are scattered in the vicinity and a mine’s vapor-release rate changes significantly over time.
GPR can detect sensitivity to changes in all three types of electromagnetic characteristics of a medium i.e. electric permittivity, electric conductivity and magnetic permeability, and unlike other sensors GPR can survey an area ahead, which is to say it has its advantages over other methods of detection such as thermography, nucleonic and radiometric.
GPR can also be used to locate:
- Weapons caches
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