基于坐标注意力和加权双向特征金字塔网络的舰载机着舰拉制状态识别

Arrested Landing State Recognition of Carrier-Based Aircraft Based on Coordinate Attention and Weighted Bi-directional Feature Pyramid Network

  • 摘要: 【目的】舰载机尾钩与阻拦索成功挂锁,是决定舰载机安全着舰的关键。因此,对于舰载机尾钩和阻拦着舰拉制状态的精确识别是着舰信号官实施高效指挥的重要依据。为此,提出一种融合了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,旨在为着舰信号官提供智能化的辅助识别工具。【方法】首先,使用坐标注意力机制从空间和通道两个维度增强模型的捕捉特征的能力;其次,由加权双向特征金字塔网络引入可学习的权值学习不同输入特征的权重,实现双向多尺度特征融合;最后,采用C2F模块轻量化模型架构,减少参数和计算量。【结果】通过仿真实验将所提模型与5种基线模型进行对比,实验结果表明,该模型在舰载机尾钩和阻拦着舰拉制状态的检测上,其综合性能均优于基线模型。【结论】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和安全、预防潜在的人员伤害和装备损失具有重要意义。

     

    Abstract: Objectives The successful locking of the tailhook and arresting wires of the carrier-based aircraft is the key to determining the safe landing of the carrier-based aircraft. Therefore, precise recognition of the tailhook status and the arrested landing state recognition of carrier-based aircraft is fundamental for the Landing Signal Officer(LSO) to execute effective commands. To this end, a arrested landing state recognition model based on Coordinate Attention(CA) and weighted Bi-directional Feature Pyramid Network(BiFPN) is proposed, aiming to provide intelligent auxiliary recognition tools for LSO. Methods Firstly, the CA is used to enhance the network's feature extraction ability from both spatial and channel dimensions. Then, BiFPN introduces learnable weights to learn the weights of different input features, repeatedly using top-down and bottom-up multi-scale feature fusion, and finally adopting a C2F lightweight model structure, reduce parameters and computational complexity. Results Through simulation experiments, the proposed model was compared with five baseline models. The experimental finding revealed that our model outperformed the baseline model in detecting the tailhook and arresting wires of the carrier-based aircraft. Conclusions It helps to improve the accuracy and robustness of the tailhook and arresting wires of the carrier-based aircraft detection, and is of great significance for improving the efficiency and safety of carrier-based aircraft landing operations, preventing potential personnel injuries and equipment losses.

     

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