基于坐标注意力和加权双向特征金字塔网络的舰载机阻拦着舰拉制状态精准识别

Accurate arrested landing state recognition of carrier-based aircraft based on coordinate attention and weighted bi-directional feature pyramid network

  • 摘要:
    目的 舰载机着舰安全的关键在于尾钩与阻拦索成功挂索,而现有研究中,借助智能化手段辅助着舰信号官(LSO)识别阻拦着舰状态的工作较少。
    方法 提出融合坐标注意力和加权双向特征金字塔网络的阻拦着舰拉制状态识别模型。先使用坐标注意力机制(CA)从空间和通道两个维度增强模型捕捉特征的能力;再通过加权双向特征金字塔网络(BiFPN)纳入可学习的权值学习不同输入特征的重要性,实现双向多尺度特征融合;然后采用C2F模块轻量化模型架构,减少参数和计算量;最后通过仿真实验将所提模型与5种基线模型进行对比。
    结果 结果表明,在舰载机尾钩和阻拦着舰拉制状态的检测上,该模型综合性能均优于基线模型。
    结论 该模型有助于提高尾钩及阻拦索的啮合状态检测的准确率和鲁棒性,对提高舰载机着舰作业的效率、预防潜在的人员伤害和装备损失具有重要意义。

     

    Abstract:
    Objectives The critical factor in the safe landing of carrier-based aircraft is the successful locking of the tailhook and arresting wires. However, in the existing research, there is relatively little work on using intelligent means to assist the landing signal officer (LSO) in identifying the arrested landing state.
    Method This paper proposes a model for identifying the arrested landing state which integrates coordinate attention (CA) and a weighted bi-directional feature pyramid network (BiFPN). First, CA is used to enhance the network's feature extraction ability in both the spatial and channel dimensions. Next, BiFPN introduces learnable weights to learn the weights of different input features by repeatedly using top-down and bottom-up multi-scale feature fusion. A C2F lightweight model structure is adopted to reduce the parameters and computational complexity. Finally, the proposed model is compared with five baseline models through simulation experiments.
    Results The results reveal that the proposed model outperforms the baseline model in detecting the tailhook and arresting wires of carrier-based aircraft.
    Conclusions The findings of this study can provide valuable references for improving the accuracy and robustness of the detection of the tailhook and arresting wires of carrier-based aircraft, and is of great significance for improving the efficiency of carrier-based aircraft landing operations and preventing potential personnel injuries and equipment losses.

     

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