ABSTRACT
The ground penetrating radar technology based on the physical basis that different media possess different dielectric properties is a method of detecting distribution patterns and characteristics of the geotechnical medium using the reflection of highfrequency electromagnetic waves. Its working principle involves the high-frequency electromagnetic wave with a broadband short pulse form launched by the transmitting antenna that is accepted by the receiving antenna after the reflection and transmission of the target (Li 2005, Bai & Zhou 2001, Daniel et al. 1988, Xiao et al. 1996). When electromagnetic wave spreads in the medium, its path, the intensity of the electromagnetic field and the waveform will vary with the dielectric properties and geometric shapes of the medium. Therefore, through the processing and analysis of time-domain waveform, the spatial location or structural condition of the underground interfaces or objects is determined.
