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ID:23529198
大小:2.33 MB
页数:58页
时间:2018-11-08
《飞机着陆调度问题的免疫优化方法研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AbstractABSTRACTAirtransportishighlysignificanttothedevelopmentofthenationaleconomyandthepromotionoftheinternationalexchanges.Withtherapiddevelopmentofcivilaviationinournation,thecongestionofflightsconfrontedwithbytheterminalareabecomesincreasinglyserver.A
2、ircraftlandingscheduling(ALS)isoneofthecorecontentsofterminalareaflowmanagement.Thepurposeistoseektodetermineasafeandeconomicalsequenceofaircraftlandingstomakefulluseofthelimitedresourcesofairports.Therefore,theefficientsolutionoftheproblemhasgreatsignific
3、anceforincreasingthethroughputoftheterminalareaandimprovingflightsbenefit.ALSisatypicalcombinatorialoptimizationproblemwithconstraints.Boththepermutationforaircraftsisexceptionalorderandconstraintsoftheminimalseparationtimeineverytwoaircraftsareexceptional
4、order.Real-timeishighlydemanded,airspaceandrunwaysareverylimitedatairports.Whenthenumberofairc省aftsisincreasing,itisextremelydifficulttoobtainaschedulingschemewhichismeetingalloftheconstraintsandminimizesthecostaslessaspossible.Inthispaper,noveloptimizatio
5、nmethodsbasedonartificialimmunesystemareproposedtosolvethetechnicalproblemintheaircraftlandingschedulingoftheterminalarea.(1)Consideringthesolutionspaceincreasingexceptionallywiththenumberofaircraftsandgreatamountofinfeasibleschedulingschemesexisting,thist
6、hesisbasedonremovingworseandinfeasibleschemesmakesuseofimmunenegativeselectiontoobtainbettersolutions.AlsooptimizationalgorithmofactuallandingtimebasedonindependentsubsequenceWasproposed.(21Furthermore,forthedefectofslowconvergencespeedasaresultoflackofpos
7、i_tiveinformationinnegativeselectionmethod,apositiveoptimizationmethodbasedimmuneisproposedinthispaper.Thisalgorithmintroducesimmuneclonalmechanismtosearchtheneighborhoodofbettersolutions.Andoperatorsaretargeteddesignedconsideringthecharacteristicoftheprob
8、lem.Afterobtainingbetteraircraftspermutations,weputforwardadeterministicalgorithmbasedoncompactsubsequencetoacceleratetheprocessofsearchingfortheactuallandingtimeofeachaircraft.Inbothstaticanddynamiccases,exp
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