面向多源着舰引导信息的分布式融合技术
收稿日期: 2024-10-29
修回日期: 2024-11-27
录用日期: 2024-12-23
网络出版日期: 2024-12-30
基金资助
国家级项目
Distributed fusion technology for multi-source landing guidance information
Received date: 2024-10-29
Revised date: 2024-11-27
Accepted date: 2024-12-23
Online published: 2024-12-30
Supported by
National Level Project
舰载机着舰过程中,为满足舰载机着舰高精度、高可靠性的相对导航要求,在比较了各类着舰引导融合架构的局限性后,设计了面向多源着舰引导信息的分布式融合架构和算法。首先,对舰载机和母舰的相对运动进行分析,使用机、舰惯性测量建立了机舰相对惯性解算模型,并推导了相对惯性解算的误差传播方程;其次,基于误差传播方程设计了相对导航子滤波器;然后,针对存在相关性的2个相对导航子滤波器进行双路融合计算,提出了一种基于计算相关性的融合方法,通过实时计算2个组合子滤波器的互协方差矩阵来进行融合估计,给飞控系统提供一路融合精度优于任一相对导航子滤波器的着舰引导信息,同时提供相对导航融合精度的实时评估结果;最后,基于仿真数据和试飞数据进行仿真验证,结果表明该方法能够提升相对导航的精度,能准确评估相对导航误差,解决了分布式融合架构中融合中心处理时存在的相关性问题,用以更好地辅助舰载机着舰引导控制。
李立功 , 张超 , 苏婧婷 . 面向多源着舰引导信息的分布式融合技术[J]. 航空学报, 2025 , 46(13) : 531461 -531461 . DOI: 10.7527/S1000-6893.2024.31461
In the carrier-based aircraft landing process, to meet the requirements of high-precision and high-reliability relative navigation for carrier-based aircraft landing, a distributed fusion architecture and algorithm for multi-source landing guidance information are designed after comparing the limitations of various landing guidance fusion architectures. Firstly, the relative motion between the carrier-based aircraft and the mothership is analyzed, and the aircraft-ship relative inertial solution model is established using the inertial measurement of aircraft and ship, and the error propagation equation of relative inertial solution is derived. Secondly, a relative navigation sub-filter is designed based on the error propagation equation. Then, a fusion method based on calculated correlation is proposed for the two relative navigational sub-filters with correlation. By calculating the cross covariance matrix of the two combinatorial filters in real time, the fusion estimation is carried out to provide the flight control system with landing guidance information whose fusion accuracy is better than that of any relative navigational sub-filter. Moreover, this method provides real-time evaluation results of relative navigation fusion accuracy. Finally, simulation verification is carried out based on simulation data and test flight data. The results show that this method can improve the accuracy of relative navigation, accurately evaluate relative navigation errors, and solve the correlation problem existing in the fusion center processing in the distributed fusion architecture, so as to better assist the guidance and control of carrier aircraft landing.
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