GPS捷联惯导组合系统中的联邦滤波器研究  

Study of Federal Filter in GPS/SINS Integrated Navigation System

作　　者：王朝光[1] 万彦辉[1] 单鑫伟 

机构地区：[1]中国航天时代电子公司第十六研究所,西安710100

出　　处：《弹箭与制导学报》2005年第S5期491-494,共4页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：详细推导了 GPS 捷联惯导组合系统的模型,并以伪距、伪距率子滤波器为例,设计了有重置的联邦滤波器。在此基础上,通过修改信息分配算法,设计了改进的联邦滤波器。对两种联邦滤波器的仿真和分析表明,改进的联邦滤波器和常规的联邦滤波器相比,不仅滤波精度相同,而且简化了算法,减小了计算量,但两种算法本质相同。In this paper,the GPS/SINS integrated navigation system model is derived in detail,and a reset federal filter is designed with the example of pseudo-range and its rate sub-filters.A changed federal filter is designed again by chan- ging information sharing algorithm.Computer simulation and analysis shows that the changed federal filter has same ac- curacy and less computation,so is same in essential comparing with conventional one.

关 键 词：GPS/SINS 组合导航系统 联邦滤波器 伪距率 信息分配算法 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]