星載軌道預(yù)報(bào)算法和軌道機(jī)動(dòng)仿真研究.pdf

1、中國(guó)科學(xué)院空間科學(xué)與應(yīng)用研究中心碩士學(xué)位論文星載軌道預(yù)報(bào)算法和軌道機(jī)動(dòng)仿真研究姓名：張曉坤申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：楊新劉迎春20050601星載軌遵預(yù)報(bào)算法和軌道機(jī)動(dòng)仿真研究ABSTRACTStudyonSateIIiteon—boardOrbitPredictionAIgorithmandOrbitalManeuverSimUIatiOnAuthor：ZhangXiaokun(ComputerApplicati

2、onTechnology)Directedby：YangXinandLiuYingchunEnhancingonboardnavigationabilityalleviatinggroundsystem’Sburdenandcuttingdownthecostofspacemission，spacecraftautonomousnavigationsystemissignificantlyimportantAutonomousnavig

3、ationwillsimplifygroundsystemonspacecrafttrackingandroutineorbitdeterminationThedevelopmentofon—boardcomputerandtheincreasingrequirementfororbitpredictionprecision，promotetheupdateofonboardorbitpredictionalgorithmInaddit

4、ion，extensiveattentionhasbeenalreadypaidtodevelopingthestableorbitalcontrolsystembythedomesticandforeignresearchers，whichisakeytechnologyofhighprecisesmallsatelliteInthisthesis，spacecraftonboardorbitpredictionalgorithman

5、dorbitalmaneuversimulationarediscussedrespectivelyThemainworkisfollowed：EstablishingtheforcemodelsforLEO(LowEarthOrbit)spacecraft，consideringthevariousperturbationsincludingtheEarthgravitythelunisolarforces，solarradiatio

6、nandatmosphericdrag≯Workingonthespacecraftsimulationsystemanditsuserinterface，mainlyonorbitdynamicsmodelanditsimplementationGivinganewsatelliteephemeriscomputationmethod，Itisdifficultforthetraditionalmethodstosatisfythei

7、ncreasingpreciserequirementinfutureWiththegreatimprovementofonboardsystemcapability，itisfeasibletopredictmoreprecisesatelliteorbiton—boardAnumericalalgorithmforonboardorbitpredictionispresentedfortheLEOspacecraft，byapply

8、ingthesimplifieddynamicsmethodandRK4integratorembeddedwiththeinterpolationmethodEarthobservationsatellitesmostlyoperateonnearlycircularsunsynchronizationorbitsTheirorbitalmaneuversareusuallyaccomplishedamongcirculardiffe