Volume 20 Issue 1
Jan.  2000
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SONG Fuxiang, ZUO Wenji. ALGORITHM STUDY ON AUTONOMOUS ORBIT DETERMINATION FOR LOW EARTH ORBIT MICROSATELLITES USING GPS[J]. Chinese Journal of Space Science, 2000, 20(1): 40-47. doi: 10.11728/cjss2000.01.040
Citation: SONG Fuxiang, ZUO Wenji. ALGORITHM STUDY ON AUTONOMOUS ORBIT DETERMINATION FOR LOW EARTH ORBIT MICROSATELLITES USING GPS[J]. Chinese Journal of Space Science, 2000, 20(1): 40-47. doi: 10.11728/cjss2000.01.040

ALGORITHM STUDY ON AUTONOMOUS ORBIT DETERMINATION FOR LOW EARTH ORBIT MICROSATELLITES USING GPS

doi: 10.11728/cjss2000.01.040
  • Received Date: 1999-01-05
  • Rev Recd Date: 1999-07-23
  • Publish Date: 2000-01-24
  • To realize GPS orbit determination for low earth arbit satellites, a navigationalgorithm called sequential UD covariance factorization algorithm is proposed inthis paper. Formulas of UD algorithm are given completely, and state equationsand measurement equations are derived in detail in the paper. Mathematical modelof the navigation system is built, which is composed of nine state vectors and eightobservation vectors. Finally, numerical simulation experiments are conducted. Simulation results indicate that UD algorithm can not only provide high positioningprecision but also be fit for computers onboard low earth orbit satellites.

     

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