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This document shows theoretical and experimental results of the capabilities of an active longwave infrared imaging system on surface laid minefields. Three anti-tank and three anti-personnel mines on soil and prairie grass backgrounds are investigated for the detection and identification capabilities of this scanning imaging system. After establishing the detection and identification capabilities of the set-up used in this experiment, an associated parameter of the imaging system is evaluated which can be. used to estimate the detection and identification capabilities of other imaging set-ups with different configurations. In addition, speckle is studied and its presence is demonstrated in the images obtained.... Minefield Detection, Carbon Dioxide, Laser, Speckle, Active Imaging, CO2, IR.