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Radar Detection of Buried Landmines in Field Soils

^a Hydrology Program, Dep. of Earth & Environmental Science, New Mexico Tech, Socorro, NM 87801
^b Dep. of Mathematics, New Mexico Tech, Socorro, NM 87801

View larger version (24K): [in a new window]   Fig. 1. Dielectric constant vs. soil water content predictions for Sevilleta sand, silt, and Bosque clay soils at 900 MHz.

View larger version (31K): [in a new window]   Fig. 2. Dielectric constant vs. frequency predictions for Sevilleta sand, silt and Bosque clay soils. The vertical axes have different scales.

View larger version (17K): [in a new window]   Fig. 3. Attenuation vs. soil water content predictions for Sevilleta sand, silt, and Bosque clay soils at 900 MHz.

View larger version (29K): [in a new window]   Fig. 4. Attenuation vs. frequency predictions for Sevilleta sand, silt, and Bosque clay soils. The vertical axes have different scales.

View larger version (24K): [in a new window]   Fig. 5. Conceptual illustration of (A) radar reflection from buried landmine and (B) resulting GPR wiggle trace plot.

View larger version (122K): [in a new window]   Fig. 6. Wiggle trace plots of the simulated NR26 antitank landmine buried 11 cm below the ground surface in the Sevilleta sand, silt, and Bosque clay soils imaged using a 900-MHz GPR system.

View larger version (126K): [in a new window]   Fig. 7. Wiggle trace plots of defused antitank nonmetallic landmines buried in the Yuma, Arizona soils imaged using a 900-MHz GPR system.

View larger version (127K): [in a new window]   Fig. 8. Wiggle trace plots of defused antitank metallic landmines buried in the Yuma, Arizona soils imaged using a 900-MHz GPR system.