›› 2012, Vol. 32 ›› Issue (5): 47-53.doi: 10.3780/j.issn.1000-758X.2012.05.008

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ImprovedHaloOrbitControlMethodBasedonPoleAssignment

 CHAO  Ning1, LUO  Xiao-Ying2, LI  Yan-Jun1   

  1. (1InstituteofAstronomy,NorthwesternPolytechnicalUniversity,Xi′an710072)
    (2Xi′anPowerElectronicResearchInstitute,Xi′an710061)
  • Received:2011-12-22 Revised:2012-02-27 Online:2012-10-25 Published:2012-10-25

Abstract: Basedonsmalldeviationtheory,theno-perturbation3-bodydynamicequationswerelinearizedandtheerrorlinearmodelwas deduced.Basedonthepoleassignmenttheoryoflinearsystem,stationkeepingforperturbedhaloorbitnearL1pointinEarth-MoonsystemwasachievedthroughdesigningtheclosedlooppoleassignmentstatefeedbackmatrixKbychoosing standardorbitstatevectorasclosedlooptargetpole.Aimedatthecontrolerrorcausedbysinglecontrollevelofthreeaxis in  K ,adesignmethodofvariablefeedbackmatrixKcoefficient(VKC)consideringthescaleoforbitinjectionwasproposed.TheexperimentsshowthattheVKCmethodwhichimprovedcontroleffectoforiginalcontrolmethodanddecreasedtrackingvariancesumunderdifferenterrorlevelsisavailable.

Key words: Haloorbit, Librationpoint, Poleassignment, Orbitstationkeeping, Spacecraft