Applying Ground Penetrating Radar to Detect Foreign Objects in the Paddy Warehouses

The objective of this research was to study the feasibility of applying non-destructive ground penetrating radar system to detect foreign objects in the paddy warehouses. Four types of antennas (frequency: 900, 400, 350, and 100MHz) were adopted to detect foreign objects of iron box, wood box, and rice husk that were buried in paddy warehouse located in Lu-Chu Farmer’s Association, Taoyuan, Taiwan. The difference of dielectric constants among foreign objects and paddy contributed respectively highest, higher and lower radar reflecting signals for iron box, wood box, and rice husk. The ground penetrating radar system developed in this study reveals the potential of detecting foreign objects in the paddy warehouses