摘要
北斗双星定位系统是我国自行建立起来的一种区域性定位系统(RDSS).本文论述了双星导航定位系统存在的缺点,提出了利用我国现有的导航卫星资源即两颗工作卫星和第3颗卫星(备用卫星)与气压高度表组成一种区域性无源导航定位系统,并给出了定位算法表达式.仿真结果表明,该方法是可行的,可实现中等精度的导航定位,为发展我国的卫星导航定位系统提供了一种新思路.
Beidou' Double-star positioning system is one kind of positioning system for local area (RDSS). In this paper, the disadvantage of double-star navigation system is discussed and a new idea is put forward. The idea is to set an inactive regional navigation system made up of the barometer and the existing two working satellites and the third (spare satellite). The algorithm expression for this navigation idea is presented. The simulation results show that this method for navigation is feasible and can fulfill the media-accuracy navigation positioning, so to offer a new way to develop a relatively simple satellite navigation system.
出处
《空间科学学报》
CAS
CSCD
北大核心
2003年第2期149-154,共6页
Chinese Journal of Space Science
基金
国防预研课题基金资助
