Nowadays, GPR is one of the most effective tool for enabling the safe use of the underground; in fact, amongst the various state-of-the-art methods available, it is a noninvasive technique capable of accurately locating both metallic and non-metallic buried objects. After a multi-year development, a new system has been recently introduced on the market; due to the combined use of low and high frequency antennas (dual-frequency antennas), the use of array of sensors in different polarization and dedicated data processing techniques, the equipment enables the recreation of a 3-D volume from spatially correlated data, with clear benefit in terms of achievable performance and productivity.
No takes yet. Share an insight, caveat, or question.
Simi et al. (2010) studied this question.