›› 2011, Vol. 31 ›› Issue (1): 8-15.doi: 10.3780/j.issn.1000-758X.2011.01.002

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Orbit Design for Mars Exploration by the Accurate Dynamic Model

 CHEN  Yang, ZHAO  Guo-Qiang, BAOYin  He-Xi, LI  Jun-Feng   

  1. (School of Aerospace Engineering, Tsinghua University, Beijing 100084)
  • Revised:2010-08-16 Published:2011-02-25 Online:2011-02-25

Abstract: The precision orbit design for Mars exploration by the accurate dynamic model was studied. The launch window and trans-Mars orbit was determined through the partical swarm optimization (PSO) algorithm within the heliocentric two-body restriction. The patched conics method was introduced to design the earth-centred parking orbit and departure hyperbolic orbit. The solution of two-body Lambert problem was input as initial value for precision orbit design, and the preliminary orbit was corrected with the restrictions of the Mars B-plane parameters and flight time by the accurate dynamic model. Finally the designed orbit was simulated with the STK softwares.

Key words: Two-body problem, Differential iteration, Orbit design, Precision dynamic model, Mars probe, Simulation