一种基于联邦滤波的SINS/GNSS/RA弹载多源组合导航算法  

An SINS/GNSS/RA Missile-Borne Multi-source Integrated Navigation Algorithm Based on Federated Filter

作　　者：李杰 梁玉琴 李昃雯 秦硕 程遵堃 LI Jie;LIANG Yuqin;LI Zewen;QIN Shuo;CHENG Zunkun(Shanghai Aerospace Control Technology Institute,Shanghai 201109,China)

机构地区：[1]上海航天控制技术研究所,上海201109

出　　处：《上海航天（中英文）》2023年第2期106-111,共6页Aerospace Shanghai（Chinese&English）

摘　　要：针对传统的惯性/卫星(SINS/GNSS)弹载组合导航系统导航信息源单一、易受干扰且鲁棒性差等问题,引入了雷达高度表(RA)作为新的信息源参与导航信息融合,并在发射惯性系下设计了一种基于联邦滤波的SINS/GNSS/RA弹载多源组合导航算法。仿真结果表明:本算法构建的组合导航系统具有良好的导航性能,在GNSS受干扰失效后,相较于传统SINS/GNSS组合导航系统,SINS/GNSS/RA组合导航系统依靠SINS/RA子滤波器,依旧能够在一定的时间范围内为导弹提供有效的定位信息,其表现出了更高的鲁棒性和可靠性。Aiming at the problems such as that the information source of the traditional ship’s inertial navigation system/global navigation satellite system(SINS/GNSS)missile-borne integrated navigation system is simple,susceptible to interference,and poorly robust,in this paper,the radar altimeter(RA)is introduced,as a new information source,into the navigation information fusion,and an SINS/GNSS/RA missile-borne multi-source integrated navigation algorithm based on federated filter is designed in the launch inertial frame.The simulation results show that the integrated navigation system constructed by this algorithm has good navigation performance.After the GNSS is interfered and fails,compared with the traditional SINS/GNSS integrated navigation system,the SINS/GNSS/RA integrated navigation system can still provide effective positioning information for the missile within a certain time range by means of the SINS/RA sub-filter,and shows higher robustness and reliability.

关 键 词：发射惯性系 联邦滤波 弹载多源组合导航系统 雷达高度表 

分 类 号：V249.3[航空宇航科学与技术—飞行器设计]