高动态航天器复合定位异常处理方法  

Abnormity management method in high dynamic integrated positioning of spacecraft

作　　者：魏可惠[1] 祝刚[1] 程永生[1] 李世玲[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621900

出　　处：《信息与电子工程》2009年第5期382-385,共4页information and electronic engineering

基　　金："十一五"跨行业预先研究资助项目(51305060204);中国工程物理研究院预先研究资助项目(426010502-4)

摘　　要：针对航天飞行器在高动态状态下的定位问题,提出了基于信息融合的惯性/卫星定位组合方案,建立了惯性/卫星定位信息融合模型,在对高动态定位异常分析的基础上,研究了高动态定位异常的判断和处理方法,通过数值仿真进行故障模拟及处理,结果表明该方法能较好地修正卫星定位异常对复合定位的影响,一定程度上提高了高动态复合定位的工作可靠性。Aimed to the problems in high dynamic positioning of spacecraft, the integrated positoning project based on the information fusion of Inertial Navigation System（INS） and Global Navigation Satellite System（GNSS） was brought forward. Based on the information fusion model of INS/GNSS integrated positioning and the analysis on abnormity in high dynamic positioning, the estimation and processing methods were designed. Malfunction simulation and management indicated that the influence on position precision could be decreased to a certain extent after correction and the method in this paper could improve the reliability in high dynamic positioning.

关 键 词：高动态 复合定位 定位异常 故障模拟 

分 类 号：P228.4[天文地球—大地测量学与测量工程]