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March 10, 2026Underground Space0 citationsOpen Access

Vehicle-Mounted Radar System For Quick Tunnel Defect Inspection

A vehicle-mounted radar system for quick tunnel defection inspection

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Authors

XZXiaomeng ZhaoRGRenzhou GuiWWWei Wu

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Overview

This system enables rapid multi-directional inspection of tunnel defects, suggesting improvements in engineering safety.

Key Points

  • The research aims to design a vehicle-mounted ultra-wideband GPR system for effective tunnel defect inspection.
  • Developed a synthesized UWB signal design using an FPGA.
  • Implemented a delayed phase-locked synchronization technique for precision.
  • Designed a semi-elliptical antipodal Vivaldi antenna array for enhanced data quality.
  • Conducted experiments for reflection analysis, non-contact detection, dynamic scanning, and defect identification.
  • The system effectively detects subsurface targets under non-contact conditions.
  • Outperformed conventional GPR systems in inspection depth and resolution.
  • Achieved rapid and synchronous multi-angle inspections in real tunnel environments.
  • Demonstrated high-quality imaging of various complex tunnel defects.
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Cite This Study

Zhao et al. (2026) studied this question.

synapsesocial.com/papers/69af94c970916d39fea4baafhttps://doi.org/10.1016/j.undsp.2025.07.007
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