What is GPR?
Ground penetrating radar (GPR) is a tool capable of imaging subsurface non-destructively. It is based on electromagnetic technique and provides high resolution subsurface profiles which helps in mapping the underground features effectively.
GPR operates by transmitting microwave electromagnetic energy down into the subsurface. When EM waves encounter the interface having different electric or magnetic properties, the portion of the wave is reflected, refracted and rest is transmitted. It utilizes high frequency electromagnetic waves and occupies the specific portion of the electromagnetic spectrum.The depth of penetration for a GPR ranges from a few centimetres to larger depth of around 15-20 meters.
GPR often encounters difficulty in visualizing the buried target when signals are weak and enveloped by noise, despite using the best of existing GPR data analysis tools.
