用神经网络快速预测弹道加速度特征,省去漫长仿真。
SE-MLP Model for Predicting Prior Acceleration Features in Penetration Signals
- 结合通道注意力与残差结构的SE-MLP模型
- 预测误差在工程可接受范围内,峰值与脉宽偏差小
- 适合需要快速获取加速度特征的弹药设计场景
准确识别穿透过程高度依赖穿透加速度的先验特征值,但这些值通常需通过长时间仿真和高成本计算获得。为此,本文提出一种多层感知机架构——挤压激励多层感知机(SE-MLP),融合通道注意力机制与残差连接,实现加速度特征值的快速预测。以不同工况下的物理参数为输入,模型输出分层加速度特征,建立物理参数与穿透特性间的非线性映射。与传统MLP、XGBoost及Transformer模型对比实验表明,SE-MLP在预测精度、泛化能力与稳定性方面表现更优。消融实验证实通道注意力模块与残差结构均对性能提升有显著贡献。数值仿真与测距恢复测试显示,预测值与实测加速度峰值及脉冲宽度差异均在可接受工程容差内。结果验证了该方法的可行性与工程适用性,为穿透引信先验特征值的快速生成提供了实用依据。
原文摘要 · Abstract (English)
Accurate identification of the penetration process relies heavily on prior feature values of penetration acceleration. However, these feature values are typically obtained through long simulation cycles and expensive computations. To overcome this limitation, this paper proposes a multi-layer Perceptron architecture, termed squeeze and excitation multi-layer perceptron (SE-MLP), which integrates a channel attention mechanism with residual connections to enable rapid prediction of acceleration feature values. Using physical parameters under different working conditions as inputs, the model outputs layer-wise acceleration features, thereby establishing a nonlinear mapping between physical parameters and penetration characteristics. Comparative experiments against conventional MLP, XGBoost, and Transformer models demonstrate that SE-MLP achieves superior prediction accuracy, generalization, and stability. Ablation studies further confirm that both the channel attention module and residual structure contribute significantly to performance gains. Numerical simulations and range recovery tests show that the discrepancies between predicted and measured acceleration peaks and pulse widths remain within acceptable engineering tolerances. These results validate the feasibility and engineering applicability of the proposed method and provide a practical basis for rapidly generating prior feature values for penetration fuzes.
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