基于多普勒雷达的突发性灾害体智能识别
Intelligent Identification of Sudden Geohazard Bodies Based on Doppler Radar
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针对突发性地质灾害识别的高精度与实时性需求,提出了一种适用于多普勒雷达的轻量级多尺度特征融合网络DRWAF-Net(doppler radar wavelet attention fuse network),通过小波变换与注意力机制协同优化,实现了复杂地表环境下泥石流、滚石等灾害体的实时识别.研究充分利用多普勒雷达动态捕获灾害体距离与速度的能力,整合环境干扰下的泥石流数据集与RDRD数据集的核心要素,针对性构建了突发地质灾害场景的多普勒雷达数据集.实验结果表明,DRWAF-Net以2.38 M参数量、9.27 MB模型大小和6.31 ms推理速度,使准确率(96.77%)、精确率(96.90%)、召回率(96.77%)和F1分数(96.77%)均在测试集上达到最优水平.消融实验验证,结合多输入注意力门控(MIAG)机制的DRWAF-Net较基准模型提升识别率1.87%~3.13%.通过轻量化设计与实时推理优化,为突发性地质灾害应急响应提供了实时、智能的监测方案.
To address the demands for high-accuracy and real-time identification of sudden geological hazards, a lightweight multi-scale feature fusion network for Doppler radar, termed DRWAF-Net (doppler radar Wavelet Attention Fuse Network), is proposed. By jointly integrating wavelet transform and attention mechanisms, the proposed method enables real-time recognition of debris flows, rockfalls, and other hazard targets under complex surface conditions. The study fully exploits the capability of Doppler radar to dynamically capture the range and velocity characteristics of moving hazard bodies, and constructs a Doppler radar dataset for sudden geological hazard scenarios by integrating key elements from a debris flow dataset under environmental interference and the RDRD dataset. Experimental results show that DRWAF-Net achieves superior performance on the test set with only 2.38 M parameters, a model size of 9.27 MB, and an inference time of 6.31 ms, attaining an accuracy of 96.77%, precision of 96.90%, recall of 96.77%, and an F1-score of 96.77%. Ablation experiments further demonstrate that the introduction of a multi-input attention gating (MIAG) mechanism improves recognition accuracy by 1.87%-3.13% compared with baseline models. Owing to its lightweight design and real-time inference capability, the proposed approach provides an effective and intelligent monitoring solution for emergency response to sudden geological hazards.
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国家重点研发计划项目(2024YFB2605500)
四川省优秀青年科技人才“顶青”专项(2025JDDQ0006)
四川省科学教育联合基金(2024NSFSC1952)
成都市科学技术局技术创新研发项目(2024 YF05-01584-SN)
地质灾害防治与地质环境保护全国重点实验室自主研究课题(SKLGP2022Z011)
地质灾害防治与地质环境保护全国重点实验室自主研究课题(SKLGP2024Z002)
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