Title of Paper:Crosshole radar for underground structure defect detection: System design and model experiment

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Date of Publication:2016-06-20

Journal:16th International Conference on Ground Penetrating Radar

Included Journals:EI

Page Number:1-5

Abstract:This paper presents a crosshole radar system and its model experiment for underground structure defect detection. The system is built using a vector network analyzer (VNA), cylinder dipole antennas, and a radio frequency (RF) amplifier. The VNA enables the radar to work in stepped frequency mode. The antenna, which has a carefully designed diameter of 32 mm, is compatible with most boreholes in common underground structures and is tested to work in the frequency range from 210 MHz to 560 MHz. The RF amplifier, set up at the output port of the VNA, amplifies radar signals by approximated 20 dB