摘要
在简化动力学定轨方法的基础上,联合SWARM星载GPS双频观测数据和简化的动力学模型,在确定性运动方程中引入经验加速度参数,对SWARM卫星进行精密定轨,并对定轨结果进行精度评定。内、外符合精度评估结果表明,SWARM卫星定轨精度可达到cm级。
On the basis of reduced-dynamic orbit determination method,combining SWARM dual-frequency onboard GPS observations and reduced-dynamic models,the empirical acceleration parameters are introduced into the deterministic equation of motion to compute precise orbit determination of SWARM satellites,The accuracy of the orbit determination is evaluated.Internal and external conformity assessment results show that the orbit accuracy of SWARM Satellites has reached centimeter level.
作者
聂琳娟
张兵兵
NIE Linjuan;ZHANG Bingbing(Hubei Water Resource Technical College,Wuhan 430070,China;School of Geographic Science,Xinyang Normal University,Xinyang 464000,China;School of Geodesy and Geomatics,Wuhan University,Wuhan 430070,China)
出处
《测绘地理信息》
2018年第4期17-19,23,共4页
Journal of Geomatics
基金
国家自然科学基金资助项目(41474018,41774019,41274032)
关键词
简化动力学
经验加速度
精密定轨
cm级
reduced-dynamic
empirical acceleration
precise orbit determination
centimeter level
