中文摘要：

讨论了仅利用星间测距观测值进行导航卫星自主定轨时所遇到的星座整体旋转问题,分析了潮汐摄动对升交点赤经以及导航卫星自主定轨的影响。模拟计算结果表明,潮汐对自主定轨的切向和法向误差的影响较大,而且这种影响随着自主定轨时间的增加会越来越大,在第110 d时,其影响可达4 m,由此指出了在高精度自主定轨中顾及潮汐摄动的必要性。

英文摘要：

We firstly discuss the constellation rotation errors of autonomous orbit determination of navigation satellites, which only make use of crosslink ranging observation. Then, we comprehensively analyze the influence of tide perturbation on right ascension of the ascending node and autonomous orbit determination. The processing results of 110 days＇ simulation data indicate that tide perturbation has a great impact on the errors of along-track and cross of autonomous orbit determination. Moreover, the impact will become bigger with the increase of days of the autonomous orbit determination. The difference of along-track and cross of autonomous orbit determination on the 110 days because of to tide perturbation is about 4 meters. Therefore, the necessity that consider the influence of tidal perturbation in high-precision autonomous orbit determination is proposed.