›› 2015, Vol. 35 ›› Issue (6): 1-.doi: 10.3780/j.issn.1000-758X.2015.06.001

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ApproachPlanningandControlMethodforRendezvouswithNoncooperativeTargetinanEllipticalOrbit

 XU  Li-Jia, HU  Yong   

  1. (1BeijingInstituteofControlEngineering,Beijing100190)(2ScienceandTechnologyonSpaceIntelligentControlLaboratory,Beijing100190)
  • Received:2015-06-02 Revised:2015-10-18 Online:2015-12-25 Published:2015-12-25

Abstract: Theproblemsofapproachplanningandcontrolmethodforrendezvouswithanuncontrolledtumblingnoncooperativetargetinanellipticalorbitwerestudied.Onthepartofapproachplanning,thechaserandtargetspacecraftrendezvousedfromadistancetoasafeberthpoint,whichwasdesignedbyconsideringthestructureofthetargetspacecraft.Aftertheobservationattheberthpointforaperiodoftime,thegrasppointwasdeterminedandtheattitudemotionofthetargetspacecraftcanbepredicted.Then,asafeapproachtrajectoryfromtheberthpointtotheimplementpointforgraspingwasdesignedfortracking.Onthepartofcontrolmethod,byusingthemeasurementsoftherelativepositionandconsideringtheuncertaintiesoftheactualsystem,adaptivecontrollawsbasedonthecharacteristicmodelwereproposedforthewholerendezvousandapproachprocess.Finally,anexamplewasgiventoshowtheeffectivenessoftheproposedapproachplanningandcontrolmethod.

Key words: Ellipticalorbit, Noncooperativetarget, Uncontrolledtumbling, Rendezvousandapproach, Characteristicmodel;Spacecraft