收稿日期:2025-09-22
修回日期:2025-10-21
接受日期:2025-11-06
出版日期:2025-11-11
发布日期:2025-11-10
通讯作者:
雷文贵
E-mail:wengui_lei@163.com
Lin KANG, Xinlong WANG, Wanchun CHEN, Wengui LEI(
)
Received:2025-09-22
Revised:2025-10-21
Accepted:2025-11-06
Online:2025-11-11
Published:2025-11-10
Contact:
Wengui LEI
E-mail:wengui_lei@163.com
摘要:
为了提升弹道导弹落点精度,提出了一种高效的混合式惯导构型优化方法。该方法基于摄动法构建了混合式惯导误差快速计算模型,将落点圆概率误差计算时间大幅缩减至秒级,为射前快速构型寻优奠定了坚实基础。进一步深入分析惯性元件敏感轴指向对导航精度的影响,并以圆概率误差为性能指标,采用四元数描述构型参数,建立了能够避免计算奇异性并覆盖全姿态空间的优化模型。对该模型的仿真验证与机理分析表明,所提方法可使弹道导弹落点精度提升约20%~30%,且无需增加硬件成本或改变飞行弹道,在特定飞行轨迹下,相比静态最优构型表现出更高精度。这一提升主要得益于对惯性元件残余安装误差的有效抑制,从而在不同发射方向下均能实现导航精度的显著提升,验证了该方法的有效性与普适性。
中图分类号:
康林, 王新龙, 陈万春, 雷文贵. 基于混合式惯导系统构型优化的弹道导弹落点精度研究[J]. 航空学报, 2026, 47(12): 332815.
Lin KANG, Xinlong WANG, Wanchun CHEN, Wengui LEI. Ballistic missile impact point accuracy based on hybrid inertial navigation system configuration optimization[J]. Acta Aeronautica et Astronautica Sinica, 2026, 47(12): 332815.
表4
误差系数取值
| 误差系数 | 符号 | |
|---|---|---|
| 加速度计零次项/go | 9.8×10-5 | |
| 9.8×10-5 | ||
| 9.8×10-5 | ||
| 加速度计比例项 | 1×10-5 | |
| 1×10-5 | ||
| 1×10-5 | ||
| 加速度计安装误差项/rad | 2.5×10-5 | |
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 陀螺仪零次项/(rad·s-1) | 1.5×10-8 | |
| 1.5×10-8 | ||
| 1.5×10-8 | ||
陀螺仪一次项/ (rad·s-1·go-1) | 2.5×10-8 | |
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 2.5×10-8 | ||
| 陀螺仪比例项 | 1×10-5 | |
| 1×10-5 | ||
| 1×10-5 | ||
| 陀螺仪安装误差项/rad | 2.5×10-5 | |
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 2.5×10-5 | ||
| 2.5×10-5 |
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