利用区域基准站进行导航卫星近实时精密定轨研究
Near Real-time Orbit Determination of Navigation Satellite Using Regional Tracking Network
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摘要: 利用滞后1 d的全球跟踪站数据和当天实时的区域基准站数据,基于法方程叠加的原理,对GPS卫星轨道进行分析计算,与IGS最终精密星历比较,近实时轨道的三维平均RMS达到14 cm;2 h的近实时预报轨道的三维平均RMS优于30 cm。Abstract: On the basis of adding normal equation method,the one day-long delayed global station's data and real time regional station's data have been synchronously dealed for navigation satellite orbit determination.Compared with the IGS precision orbit,the average of 3D RMS of the computed near real-time orbit is 14 cm,and the average of 3D RMS of the near real-time prediction orbit is better than 30 cm.
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