Abstract：
Ground Penetration Radar (GPR) has been widely used for probing unfavorable geological bodies. The reflection and absorption of electromagnetic waves differs according to the different dielectric constants of different media, and the spectrums obviously differ from each other. By studying the components of three such unfavorable geological media as a filled karst cave, a hollow karst cave, and a water-rich fractured zone, and analyzing the characteristics of reflection and absorption (damping) of electromagnetic waves, the main frequency values of the three unfavorable geological media are presented based on the results measured by a 100MHz radar antenna, i.e.70MHz for the filled karst cave, 100MHz for the hollow karst cave, and 20MHz for the water-rich fractured zone.
.Analysis of the Spectrum Difference of Ground Penetrating Radar (GPR)
for Different Media Fillings[J] MODERN TUNNELLING TECHNOLOGY, 2013,V50(5): 23-28
2013, Vol. 50 