Kim Se-Yun 2024-01-12T05:42:53Z 2024-01-12T05:42:53Z 2021-09-29 2018-10 https://pubs.kist.re.kr/handle/201004/79064 In process of analyzing the cross-borehole frequency-swept radar signatures of an intrusive tunnel in the past, one of serious difficulties was the effect on the oblique angle of the tunnel penetrating between a borehole pair. First, the horizontal deviation of three boreholes is reviewed in detail. And our recent studies on the cross-borehole pulse radar signatures of an obliquely penetrating tunnel are presented here. English KIEES borehole null radar null tunnel Detection of Deeply Located Dormant Tunnel Using Cross-Borehole Radar Conference 1 2018 International Symposium on Antennas and Propagation, pp.247 - 248 2018 International Symposium on Antennas and Propagation 247 248 KO 부산 2018-10-23 2018 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP) 000461368600142 2-s2.0-85062769581