IGSO和MEO卫星用于TWSTFT的卫星运动误差研究
任艳阳;周必磊
【期刊名称】《航天器工程》 【年(卷),期】2011(020)005
【摘要】This paper studies satellite motion errors of two-way satellite time and frequency transfer（TWSTFT） caused by IGSO and MEO satellites and analyzes the feasibility of IGSO and MEO satellites for TWSTFT.First of all,a satellite motion error formula is derived,and then some IGSO and MEO satellites motions from the two-line element（TLE） are calculated.Based on the satellite motion,the time transfer errors of several ground stations are simulated.The simulation results show that the satellite motion errors of TWSTFT could reach 10ns,which can＇t be ignored in the nanosecond accuracy TWSTFT and must be calibrated with satellite orbit prediction data.After being calibrated by satellite orbit prediction data which is more accurate than 1km,the satellite motion errors of TWSTFT could be lowered to less than 1ns,which meets the demand for sub-nanosecond accuracy time transfer.%针对倾斜地球同步轨道（IGSO）和中高地球轨道（MEO）卫星用于卫星双向时间传递（TWSTFT）时的卫星运动所引入的误差进行了研究,并对IGSO和MEO卫星应用于TWSTFT的可行性进行了分析。首先推导了TWSTFT中的卫星运动误差公式,并利用两行根数（TLE）对目前在轨的IGSO和MEO卫星的运动进行了计算,在此基础上对几个地面站间时间传递的卫星运动误差进行了仿真。仿真
IGSO和MEO卫星用于TWSTFT的卫星运动误差研究
