Bulletin of Surveying and Mapping ›› 2025, Vol. 0 ›› Issue (10): 30-35.doi: 10.13474/j.cnki.11-2246.2025.1006

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Ground penetrating radar multi-attribute fusion for multi-target detection of tunnel lining

ZHAO Liang1, TANG Luyi1, LIU Shipeng2   

  1. 1. College of Information and Control Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
    2. College of Mechanical and Electrical Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China
  • Received:2025-03-31 Published:2025-10-31

Abstract: This paper addresses the issues of complex ground penetrating radar (GPR)image features and low accuracy in defect detection by proposing a multi-attribute fusion method for tunnel lining defect detection.By extracting instantaneous amplitude, instantaneous phase, and instantaneous frequency attributes of radar signals, combined with wave-particle duality theory to design a Wave module as the backbone network, a multi-modal feature fusion framework is constructed.The method employs a pyramid structure to extract low-level and high-level semantic features in layers, and introduces a lightweight MLP architecture to optimize network dynamics and computational efficiency.Experimental results demonstrate that the model fusing instantaneous attributes with the Wave module achieves a mean average precision (mAP)of 91.7%in cavity, loose, and steel detection tasks, an improvement of 3.8%compared to the baseline YOLOv8 model.Ablation experiments and comparative analysis verify the effectiveness of the multi-attribute fusion strategy and the Wave module in enhancing feature expression capability, providing a new approach for precise non-destructive detection of tunnel lining defects.

Key words: multi-attribute fusion, GPR, Wave module, pyramid architecture, non-destructive defection

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