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Landmine detection using passive centimeter- and millimeter-wave emission

The feasibility of using passive centimeter and millimeter wave emission to detect landmines is investigated. The work concentrates on the modeling and measurement of the radiation temperatures of metal and plastic plates. These plates are considered both surface mounted and buried under thin layers of soil. Experimental measurements have been made at frequencies of 3 GHz, 10 GHz, 35 GHz and 94 GHz. A two interface model, which uses the dielectric constants of the media, is used to predict the radiation temperatures of the plates. Conclusions are made about the radiation bandwidths in which the various plates, surface mounted and buried, can be detected.