论文部分内容阅读
针对神舟四号飞船的轨道特点和国内已有的测定轨手段的优缺点,确定了联合GPS,SLR和USB 3种观测数据,并进行了精密电离层延迟改正的综合精密定轨方案和联合定轨模式.介绍了综合精密定轨系统的构成及定轨数学模型.对实际观测数据不同模式的联合定轨结果进行了分析,结果表明定轨径向精度优于2 m.
According to the orbit characteristics of the Shenzhou IV spacecraft and the advantages and disadvantages of the existing domestic orbit determination methods, three kinds of combined GPS, SLR and USB data were determined, and the precision orbit determination and ionospheric delay correction were combined. Rail model.The composition and orbit mathematical model of the integrated orbit determination system are introduced.The joint orbit determination results of the different models of the actual observation data are analyzed.The results show that the orbit radial accuracy is better than 2 m.