SINS/北斗/星敏感器组合导航系统研究  

Federal Filtering Algorithm in SINS/Beidou/STAR Integrated Navigation System

作　　者：华冰[1] 刘建业[1] 熊智[1] 祝燕华[1] 

机构地区：[1]南京航空航天大学导航研究中心,江苏南京210016

出　　处：《应用科学学报》2006年第2期120-124,共5页Journal of Applied Sciences

基　　金：惯性技术预研基金资助项目(41309030309)

摘　　要：将北斗卫星导航系统和星敏感器共同运用到组合导航中,以无反馈模式的联邦滤波器为基础,构建了SINS/北斗/星敏感器组合导航系统.根据北斗和星敏感器的特点,分析了系统产生量测延时和异步的原因,并对系统的量测延时和异步问题提出了解决方案.仿真表明,该组合导航系统具有较高的精度和容错性能.为北斗定位系统在国防上的应用提供了一条新思路.Beidou satellite navigation location system is China＇ s first generation satellite navigation system. The star sensor is a high precision attitude-measuring instrument. On the basis of non-feedback federal filtering, Beidou navigation location system and the star sensor are used together in an integrated navigation system in order to set up the SINS/ Beidou/star integrated navigation system. From the characteristics of Beidou and the star sensor, causes of delay and asynchronous problem in the instrumentation are analyzed, and a solution is proposed. Simulation shows that this integrated navigation system has high precision and good tolerance to faults. This shows application potentials for the Beidou system in defense industries.

关 键 词：联邦滤波 组合导航 星敏感器 捷联惯导 北斗双星 

分 类 号：O666.1[理学—分析化学]