摘要
低轨卫星及快速响应卫星非常适合作为导航源为地面用户提供独立于GNSS的导航定位服务,为了解决用户在不同低轨卫星可见数量条件下的连续定位解算问题,并避免传统伪距定位体制所需要解决的高精度星间时间同步问题,提出多种不同可见星数量条件下仅利用卫星多普勒观测信息的定位解算方法。仿真结果表明,该方法在大部分区域内都能够满足优于20 m的三维定位误差。
Fast response and low orbit satellites are very suitable for positioning service as navigation sources independent of GNSS for ground users.In order to solve the problem of continuous positioning solution under the condition of different number of low orbit satellites visible to users,and to avoid the increase of system complexity due to high precision synchronization required by traditional pseudo-range positioning system,a positioning method is proposed only using the Doppler satellite observation information under the condition of different visible satellite number.Simulation analysis results show that this method can meet the requirement for three-dimensional positioning error of less than 20 m in most areas.
出处
《无线电工程》
2017年第11期49-53,共5页
Radio Engineering
基金
"十三五"国家重点研发计划基金资助项目(2016YFB0502402)
