Analysis of Cross-Borehole Pulse Radar Signatures on a Half Water-Filled Tunnel

Title
Analysis of Cross-Borehole Pulse Radar Signatures on a Half Water-Filled Tunnel
Authors
정지현김세윤
Keywords
radar; Cross-borehole; borehole; pulse radar; tunnel; waterfilled tunnel; FDTD
Issue Date
2013-11
Publisher
Asia-Pacific Microwave Conference
Citation
, 473-475
Abstract
The effect of the water collected in the bottom of an empty tunnel on cross-borehole radar signatures is analyzed using the finite-difference time-domain (FDTD) method. The cross-borehole pulse radar is represented by 3-dimensional model and B-scan images are calculated in two cases of fully airfilled and half water-filled tunnels. The first positive peak in the B-scan image appears in a later time and moves upward direction than the tunnel center as the water is collected in tunnel. To estimate the central position of the half water-filled tunnel, the first negative peak is adopted here and its utility is described clearly.
URI
http://pubs.kist.re.kr/handle/201004/46539
Appears in Collections:
KIST Publication > Conference Paper
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