資源描述：
《衛(wèi)星編隊飛行的神經(jīng)網(wǎng)絡滑?？刂啤酚蓵T上傳分享，免費在線閱讀，更多相關內(nèi)容在學術論文-天天文庫。
1、萬方數(shù)據(jù)第27卷第6期2009年11月應用科學學報JOURNALOFAPPLIEDSCIENCES——ElectronicsandInformationEngineeringVm．27No．6NOV．2009文章編號：0255-8297(2009)06-0651—06NeuralNetwork·-BasedSlidingModeControlforSatelliteFormationFlyingGAOYou-ta01，LUYu—pin91，一，XUB021．CollegeofAutomationEngineering，Na
2、nfingUniversityo
3、AeronauticsandAstronautics．N刪tng210016,China2．Collegeo{Astronautics,N喇tngUniversityolAeronauticsandAstronautics．Nanjing210016,ChinaAbstract：Thegeneraldynamicalmodelofsatelliteformationflyingisderived．Aslidingmodecontrolmethodbasedonneuralnetworksi
4、sproposedtoimprovecontrolaccuracyandrobustnessofsatelliteformationflying．Aneuralnetworkbasedonradialbasisfunctionisdesignedtomodifytheparametersofexponentreachinglawinordertogetanoptimalbalancebetweenconvergencespeedoftheslidingquantityandfuelconsumption．Exponentr
5、eachinglawwithsaturationfunctionisusedtoweakenchatteringactuatedbyun—modeleddynamicsandhighkequencyswitchingcontr01．Thesecondorderslidingquantityoftherelativepositionerrorisusedtoimprovethecontrolaccuracy．Simulationresultsshowefrectivenessoftheneuralnetwork-baseds
6、lidingmodecontrolmethod．Keywords：satelliteformationflying，slidingmodecontrol，neuralnetwork，chattering，robustnessCLCnumber：V412．4DocumentCOde：A衛(wèi)星編隊飛行的神經(jīng)網(wǎng)絡滑?？刂聘哂袧?，陸宇平1，一，徐波21．南京航空航天大學自動化學院，南京2100162．南京航空航天大學航天學院，南京210016摘要：該文推導衛(wèi)星編隊飛行的一般相對運動動力學模型，研究將指數(shù)趨近律滑?？刂婆c神經(jīng)網(wǎng)絡控制
7、相結(jié)合的衛(wèi)星編隊飛行控制方法，設計一種徑向基神經(jīng)網(wǎng)絡參數(shù)調(diào)節(jié)器．實時調(diào)節(jié)指數(shù)趨近律的參數(shù)，從而取得滑動面的趨近速度和燃料消耗的最優(yōu)平衡．采用指數(shù)趨近律滑模控制法，用飽和函數(shù)代替可能產(chǎn)生高頻切換信號的開關函數(shù)，有效地削弱了滑?？刂频亩秳樱A滑模控制結(jié)構保證了衛(wèi)星編隊的高精度控制．仿真結(jié)果表明了這一控制方法的有效性．關鍵詞：衛(wèi)星編隊飛行；滑?？刂?；神經(jīng)網(wǎng)絡；抖振；魯棒性Satelliteformationflying(SFF)whichbreaksthe1imitationandextendsthescopeofapplic
8、ationsofthetraditionallargesatelliteisanactiveresearcharea．SFFhasrapidlydevelopedintotheareasofspace-basedtadar．ground—basedterrestriallasercommunicationsys．tem，earthsurveillance，remotesensing，stellarimagingandastrometry．TheCOntrolsystemofSFFisrequiredtostabilizet
9、heformationinthepresenceofdisturbanceandini．tialconditionerrors．Controlalgorithmsarealsoneces-saryforestablishingandrecordiguringformations．TheLQcontrol
