| 摘要 |
A device (100) using ground penetrating radar (105), a metal detector and a radiometer is designed for detection of non-metallic and metallic objects. The coils of the metal detector are mounted in a multi-sensor module (101) with the radar antenna in a co-boresighted arrangement. The ground penetrating radar (105) uses a feed and a collimation lens. The collimated beam has approximately constant power for distances closer than twice the diameter of the lens. The sensor for the radiometer is also co-located in the multi-sensor module (101). The sensors selected employ different detection phenomena. Therefore, each sensor has its unique source for false alarms and achieves an increase in probability of detection concurrent with a reduction in the false alarm rate.
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