›› 2017, Vol. 37 ›› Issue (6): 10-.doi: 10.16708/j.cnki.1000-758X.2017.0097

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Study on the tubenavigation of strictlyregressive orbit

 YANG  Sheng-Qing, DU  Yao-Ke, WANG  Wen-Yan, WU  Jing-Yu   

  1. 1.Shanghai Institute of Spaceflight Control Technology, Shanghai201109, China
    2.Shanghai Key Laboratory of Aerospace Intelligent Control Technology, Shanghai201109, China
  • Received:2017-03-16 Revised:2017-06-28 Online:2017-12-25 Published:2017-11-20

Abstract: The relative motion features between satellite and strictlyregressive reference orbit were investigated to build a tubenavigation method of remotesensing satellite. Since the reference orbit was designed only with the high precision nonspherical perturbation, it had a different dynamic environment with the satellite in space, leading an excursion in alongtrack direction. An alongtrack aligning algorithm was introduced to get rid of the excursion in alongtrack direction based on high precision orbit dynamic model and position sampling method, by which the phasetime excursion and relative motion trajectory were determined. The direct least squares fitting method was introduced to achieve the features of relative motion trajectory. The study on tubenavigation can be applied to autonomous groundtrack keeping of satellites with GNSS measurements.

Key words: strictlyregressive orbit, tubenavigation, alongtrack aligning, relative motion trajectory, phasetime excursion