Utility services detection
Ground penetrating radar (GPR)
Ground-penetrating radar (GPR) uses a high-frequency (10 to 4,000 MHz) EM pulse transmitted from a radar antenna to probe the ground. The transmitted radar pulses are reflected from various interfaces within the ground, and this return is detected by the radar receiver. Reflecting interfaces may be soil horizons, the groundwater surface, cracks in concrete, man-made objects, or any other interface possessing a contrast in dielectric properties. Attenuation of GPR signal in some soils is rapid and the presence of water in soils enhances this effect. A license is required to operate GPR systems in the UK.
