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Journal of Advanced Transportation
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Journal of Advanced Transportation
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2020
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Article
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Fig 9
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Research Article
A 3D Image Reconstruction Model for Long Tunnel Geological Estimation
Figure 9
Antenna and markings. (a) Layout of testing points. (b) Radar antenna. (c) Radar marking on the wall. (d) Original radar signals.
(a)
(b)
(c)
(d)