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| 2021, Vol. 58(3): 52-59 DOI: | ||
| A 3D GPR Imaging Technique of Tunnel Cavities Based on the Half-space Scanning Measurement Mode | ||
| (1 Zhaotong Zhaolu Expressway Investment and Development Co., Ltd., Zhaotong 657000; 2 Yuannan Aerospace Engineering Geophysical Detecting Co., Ltd., Kunming 650217; 3 Yunnan Provincial Bureau of Transportation and Transportation Engineering Quality Supervision Bureau, Kunming 650214; 4 YCIC Operation Management Co., Ltd., Kunming 650228) | ||
| Received null Revised null | ||
| Supporting info | ||
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