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.
出处
《应用科学学报》
CAS
CSCD
北大核心
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)
关键词
联邦滤波
组合导航
星敏感器
捷联惯导
北斗双星
federal filtering
integrated navigation
star sensor
SINS
Beidou satellite navigation
