Ground-penetrating Radar

Well established technology for detecting buried objects. Lightweight, fast.

Limitations:

  • Cannot detect plastic mines at the surface
  • Possible false positives due to other buried objects
  • Cannot detect anything when the soil has nonuniform moisture (eg. wet on the surface but dry below that)
  • Tradeoff between image quality and penetrating depth. Higher frequencies give better pictures but less penetration
  • Only gives approximate location of mine, needs confirmation.

Most useful as a primary detection technique to be followed by confirmation from another system.

Ground Penetrating Radar:
product: CyTerra AN/PSS-14
estimated price: $23500
maximum clutter rejection:77%
depth range: highly variable depending on soil. a few centimeters in wet and/or clay soil
weight: estimating around 5 kg
-needs around 5m separation from other sensors in environment to work optimally
power consumption: 30W; operates on 12V battery

product: VMR1-MINEHOUND (MD and GPR)
estimated price: couldn't get an estimate. supposed to be a low-cost device
maximum depth range for low-metal content explosives:20 cm
maximum depth range for anti vehicle landmines: 40 cm
weight: approx 5 kg
false positive: <25% (not extremely reliable)

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