%0 Journal Article %T OrbitDesignforResponsiveSpaceUsingMultiple-objectiveEvolutionaryComputation %A FU %A Xiaofeng %A WU %A Meiping %A ZHANG %A Jing %J 空间科学学报 %P 238-244 %D 2012 %X Responsiveorbitshaveexhibitedadvantagesinemergenciesfortheirexcellentresponsivenessandcoveragetotargets.Generally,thereareseveralconflictingmetricstotradeintheorbitdesignforresponsivespace.Aspecialmultiple-objectivegeneticalgorithm,namelytheNondominatedSortingGeneticAlgorithmⅡ(NSGAⅡ),isusedtodesignresponsiveorbits.Thisalgorithmhasconsideredtheconflictingmetricsoforbitstoachievetheoptimalsolution,includingtheorbitalelementsandlaunchprogramsofresponsivevehicles.Low-Earthfastaccessorbitsandlow-Earthrepeatcoverageorbits,twosubtypesofresponsiveorbits,canbedesignedusingNSGAⅡundergivenmetrictradeoffs,numberofvehicles,andlaunchmode.ByselectingtheoptimalsolutionfromtheobtainedParetofronts,adesignercanprocessthemetrictradeoffsconvenientlyinorbitdesign.Recurringtotheflexibilityofthealgorithm,theNSGAⅡpromotestheresponsiveorbitdesignfurther. %K Multiple-objectiveevolutionarycomputation %K Non-dominatedSortingGeneticAlgorithmⅡ(NSGAⅡ) %K Low-EarthFastAccessOrbit(FAO) %K Low-EarthRepeatCoverageOrbit(RCO) %K Successive-coverageconstellationforresponsivedeployment %U http://www.cjss.ac.cn/CN/abstract/abstract1817.shtml