簡介：重慶大學碩士學位論文基于多AGENT的航天發(fā)射應急處理系統(tǒng)研究姓名郭茂耘申請學位級別碩士專業(yè)控制理論與控制工程指導教師柴毅20040428重慶大學碩士學位論文英文摘要ABSTRACTTLLISDISSERTATIONANALYZEDTHECONCEPTPROPERTYANDTHEBASICTHEORYOFTHEEMERGENCYDECISIONTHEDISSERTATIONALSOINTRODUCEDTHEPROCESSANDCHARACTERISTICOFTHESPACELAUNCHINGANDTHEEMERGENCYPROCESSINGANDDECISIONSYSTEMISESTABLISHEDWITHTHEPARTICULARANALYZINGTHEFUNCTIONOFEACHMODULEINTHESYSTEM，CONSIDERINGTHECOMPLEXITYANDTHEHIGHRISKSOMERESEARCHISDONEONTHEMULTIAGENTINTHEDISSERTATION，SUCHASTHESTRUCTUREOFTHEAGENT，COMMUNICATIONANDCOOPERATIONAMONGTHEMULTIAGENTSANDMORE，THISDISSERTATIONPOINTEDOUTTHENECESSITYANDTHEFEASIBILITYOFTHEESTABLISHMENTOFEMERGENCYPROCESSINGANDDECISIONSYSTEMFORSPACELAUNCHINGITALSOGAVEOUTTHEMETHODFORESTABLISHINGTHESYSTEM、ⅣITLLTHETECHNOLOGYOFTHEMULTIAGENTINTHISDISSERTATION，TWOCLASSAREDESIGNEDWHICHARETHEMANAGINGANDCOOPERATINGAGENTCLASSANDFUNCTIONALAGENTCLASSWITHTHEIRREFERENCING，LEARING，KNOWLEDGEBASE，MODELBASEANDBLACKBOARDANDITISDISCUSSEDTHATREALIZATIONOFTHESYSTEMUTILIZINGTHETECHNOLOGYOFTHEOOPANDMULTITHREADINTHISDISSERTATION，THEFOLLOWINGHASBEENDONEIINTRODUCTIONOFT11EBASICCONEEDTANDCHARACTERISTICOFTHECRISISANDCRISISEMERGENCYCRISISMODEL，EMERGENCYSTEPANDITSCHARACTERISTICIIITINTRODUCEDOFTHETHEORYANDAPPLICATIONOFTHEMULTIAGENTANDTHESTRUCTUREOFTHEAGENTRESEARCHINGHASBEENDONEONTHEMANNERSOFTHECOMMUNICATIONANDCOOPERATINGBETWEENTHEMULTIAGENTSⅢTHEPROCESSANDCHARACTERISTICOFSPACELAUNCHINGHASBEENANALYZEDANDTHEEMERGENCYPROCESSINGANDDECISIONSYSTEMFORSPACELAUNCHINGHASBEENESTABLISHEDⅣTHEEMERGENCYPROCESSINGANDDECISIONSYSTEMFORSPACELAUNCHINGBASEDONMULTIAGENTHASBEENESTABLISHEDONTHEBASISOFTHESTRUCTUREOFITVTWOCLASS，THEMANAGINGANDCOOPERATINGAGENTCLASSANDFUNCTIONALAGENTCLASS，AREDESIGNEDANDSOMEMAJORALGORITHMHASALSOSTUDIEDANDSOMEDISCUSSIONHASBEENDONEONTHEMETHODOFMULTITHREADKEYWORDSCRISISEMERGENCYAGENT，SPACELAUNCHING，BLACKBOARDSYSTEMII

簡介：浙江大學碩士學位論文航天電連接器失效率驗證試驗方法的研究姓名崔杰申請學位級別碩士專業(yè)機械設計及理論指導教師陳文華盧獻彪20040201塑堅查蘭堡圭堂垡堡奎ABSTRACTINTHEDISSERTATIONTHEMODELY1LX1419ELECTRICALCONNECTORASTHEOBJECT，RELIABILITYDEMONSTRATIONTESTMETHODISRESEARCHEDDEEPLVFIRST，BRIEFLYSTATEDTHEDEVELOPEDHISTORYOFRELIABILITYRESEARCHANDCURRENTSITUATIONATHOMEANDABROADTHERELIABILITYTESTMETHODANDTHEDEVELOPINGTRENDOFRELIABILITYDEMONSTRATIONTESTTHESTATISTICALANALYSISMETHOD，THEDEVELOPINGHISTORYANDCURRENTSITUATIONOFDEMONSTRATIONTHEORY，THECURRENTSITUATIONANDEXISTINGPROBLEMSOFELECTRICALCONNECTORSRELIABILITVRESEARCHEDSECOND，THROUGHANALYZINGTHEFAILUREMEEHANISMOFEIEETRICALCONNECTORS，ANDCOMBININGWITHTHETHEORYOFPROBABILITYANDSTATISTICS，SETUPARELIABILITYSTATISTICALMODELOFELECTRICALEONNECTORSAFFECTEDONTEMPERATURESTRESS，LAIDAFOUNDATIONFORWORKINGOUTELECTRICALCONNEEFORSRELIABILITYDEMONSTRATIONTESTPLANSTHIRDESTABLISHEDCENSORINGIDEMONSTRATIONTESTPLANSOFELECTRICALCONNECTORSUNDERACCELERATEDSTRESSPROPOSEDTHEWAYOFHOWTOESTIMATETHERELIABIIITVLEVELFURTHERACCORDINETOTHEDEMONSTRATIONTESTRESULTPROPOSEDTHEEVALUATIONMETHODOFCENSORINGIDE【NONSTRATIONTESTPLANSBYSIMULATIONANDTHESIMULATIONRESUITSHOWSTHATTHEDEMONSTRATIONPLARTSHADBEENESTABLISHEDARESATISFIEDWITHTHECONCERTEDDEMANDPOURTHESTABLISHEDCENSORINGIIDEMONSTRATIONTESTPLANSOFELECTRICALCONNECTORSUNDERACCELERATEDSTRESSPROPOSEDTHEWAYOFHOWTOESTIMATETHERELIABILITYIEVELFURTHERACCORDINGTOTHEDEMONSTRATIONTESTRESULTPROPOSEDTHEEVALUATIONMETHODOFCENSORINGIIDEMONSTRATIONTESTPLARTSBYSIMULATIONANDTHEDEMONSTRATIONRESULTSHOWSTHATTHEDEMONSTRATIONPLANSHADBEENACCEPTINGCRITERION，ANDTHERESULTSHOWSTHATTHROUGHOPTIMIZINGTHEACCEPTINGCRITERIONUNDERTHECONDITIONOFTESTPRECISIONKEEPINGFIXED，THETESTTIMEMAYBESHORTENEDGREATLYFIFTH，WITHTRANSFERRINGWEIBULLDISTRIBUTIONINTOEXPONENTIALDISTRIBUTION，THESEQUENTIALCOMPLIANCEMETHODANDSIMULATIONEVALUATIONMETHODAREDISCUSSEDFORWEIBULLDISTRIBUTIONTHEMODELY1IX一1419ELECTRICALCONNECTORISTAKENFOREXAMPLE，THESEQUENTIALCOMPLIANCEPLANSOFFAILURERATEAREFORMULATEDTHERESULTOFEVALUATINGOFTHECOMPLIANCEP1ANSHOWSTHATTHEMETHODOFSEQUENTIALCOMPLIANCEISFEASIBLEANDTHEP1ANISREASONABLESIXTHESTABLISHEDBAYESIANDEMONSTRATIONTESTPLARTSOFELECTRICALCONNECTORSUNDERACCELERATEDSTRESSCOMPAREDTHEDEMONSTRATIONPLANSUNDERCLASSICALSTATISTICALTHEORYANDDEMONSTRATIONPLANSUNDERBAYESIANSTATISTICALTHEORYTHECOMPARISONRESULTSHOWSTHATTHETESTTIMEOFDEMONSTRATIONPLANSESTABLISHEDBYBAYESIANSTATISTICALTHEORYISSHORTENEDGREATLYPROPOSEDTHEEVALUATIONMETHODOFBAYESIAN

簡介：哈爾濱工業(yè)大學博士學位論文計算智能方法在航天器故障診斷中的應用研究姓名谷吉海申請學位級別博士專業(yè)飛行器設計指導教師姜興渭20050301蹬爾濱工韭丈學工學薅士學經(jīng)論文感器豹卡醒、運鑣差幫；基臻盞三耱鼓薅模式進行了仿奏診叛，取褥了理怒熬結果。該方法為缺少故障樣本數(shù)據(jù)情況下的傳感器故障診斷問題提供了一個新的思鼴。關鍵詞計算智能故障診斷；預測預報；航天囂II

簡介：申請同濟大學工程碩士學位論文航天陀螺撓性接頭的結構設計與剛度測試儀研制培養(yǎng)單位機械工程學院一級學科機械工程二級學科機械制造及其自動化研究生王寶富指導教師萬德安教授二OO六年三月ABSTRACTABSTRACTINTHESEYEARS，WITHTHEDEVELOPMENTOFASTRONAUTICSANDAERONAUTICS，THEREAREHIGHERLEVELREQUIREMENTFORAERONAUTICELEMENTSNOTONLYFORPRECISIONANDSTABILITYBUTALSOFORMINITYPEWHICHLEADTOTHEDIFFICULTYONPRECISEMANUFACTURINGANDPERFORMANCETESTIT’SDIFFICULTYTOMEETTHEPRECISEPERFORMANCETESTREQUIREMENTFORTHEKEYCOMPONENT，MINITYPEFLEXIBLEJOINTOFGYROSCOPE，USEDONAERONAUTICTOOLBYTHECONSTRAINTOFSMALLSIZE，WEAKRIGIDITY，EASINESSTODEFORM，DIFFICULTYTOLOCATEANDTOMESSUREIT’STHEPURPOSEOFTHISDISSERTATIONTODEVELOPPROPERTESTINSTRUMENTOFBENDINGRIGIDITYFORMINITYPEFLEXIBLEJOINTOFGYROSCOPETEDUCETHETESTELLORANDMEETTHEREQUIREMENTFORPRECISIONANDSTABILITYTHEBEGINNINGOFTHISPAPERISFROMTHETHEORYOFDYNAMICALLYTUNEDGYROSCOPE’SSTRUCTUREANDTHEEMPHASESISONTHEANALYSESOFFLEXIBLEJOINT’SSTRUCTURE，POINTOUTIT’SIMPORTANCEANDTHEWORKINGPRINCIPLE，WHICHMAKETHEBASEFORUNDERSTANDINGTHEMEASUREMENTPRINCIPIUMOFBENDINGRIGIDITYFORFLEXIBLEJOINTACCORDINGTOTHEDEFORMINGANDLOADINGCHARACTERISTICSOFMINITYPEFLEXIBLEJOINTOFGYROSCOPE，INTHISPAPERSTUDYONIT’SSTRUCTUREPRINCIPLEANDELASTICDEFORMCHARACTERISTICISDEPLOYED，ESPECIALLYONTHEEXAMPLEOFTHINWALLGIRDERWITHPUREBENDING，WHICHGIVEABASETIGHTMEASNRETHEBENDINGRIGIDITYOFMINITYPEFLEXIBLEJOINTOFGYROSCOPETHETRADITIONALMEASUREMENTMETHODCAN’TMEETTHEMEASUREREQUIREMENTFORTHEBENDINGRIGIDITYMEASUREMENTTRAITOFMINITYPEFLEXIBLEJOINTOFGYROSCOPEINTHISPAPERONENEWMEANSISRAISEDWITHFEASIBILITYDEMONSTRATIONANDEMULATIONALANALYSESBYEMULATIONALSOFTWARE，MSC／PATRANANDMSC／NASTRAN，WHICHLEADTOSATISFYINGRESULTANDMAKETHEBASEFORNEXTCHAPTERSONTHELATERCHAPTERS，DISCUSSIONABOUTTHEDEVELOPMENTPROCESSOFTHENEWINSTRUMENTFORTHEBENDINGRIGIDITYMEASUREMENTOFMINITYPEFLEXIBLEJOINTOFGYROSCOPEANDANALYSESONTHEELTORCAUSEDBYTHEFIXINGMETHODONTHEMEASUREPROCESSAREDEPLOYEDTHISERRORISNOTACCEPTABLEFORTHEBENDINGRIGIDITY

簡介：中圖分類號O313V4482論文編號102870115S087學科分類號080102碩士學位論文基于超二次曲面的柔性航天器避障機動研究研究生姓名吳小健學科、專業(yè)工程力學研究方向非線性動力學與控制指導教師文浩副教授南京航空航天大學研究生院航空宇航學院二О一五年三月NANJINGUNIVERSITYOFAERONAUTICSANDASTRONAUTICSTHEGRADUATESCHOOLCOLLEGEOFAEROSPACEENGINEERINGMANEUVERSOFFLEXIBLESPACECRAFTINOBSTACLEENVIRONMENTBASEDONSUPERQUADRICSATHESISINENGINEERINGMECHANICSBYWUXIAOJIANADVISEDBYASSOCIATEPROFWENHAOSUBMITTEDINPARTIALFULFILLMENTOFTHEREQUIREMENTSFORTHEDEGREEOFMASTEROFENGINEERINGMARCH,2015

簡介：點擊查看更多航天器微流星體環(huán)境風險評估技術研究.pdf精彩內(nèi)容。

簡介：工學博士學位論文工學博士學位論文航天器編隊姿態(tài)協(xié)同控制方法研究航天器編隊姿態(tài)協(xié)同控制方法研究STUDYONATTITUDECOORDINATIONCONTROLOFSPACECRAFTFORMATION靳爾東靳爾東2009年10月CLASSIFIEDINDEXV4482UDC62978DISSERTATIONFORTHEDOCTORALDEGREEINENGINEERINGSTUDYONATTITUDECOORDINATIONCONTROLOFSPACECRAFTFORMATIONCANDIDATEJINERDONGSUPERVISORPROFSUNZHAOWEIACADEMICDEGREEAPPLIEDFORDOCTOROFENGINEERINGSPECIALITYSPACECRAFTDESIGNAFFILIATIONSCHOOLOFASTRONAUTICSDATEOFDEFENCEOCT,2009DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY

簡介：中國科學院空間科學與應用研究中心碩士學位論文航天GPS數(shù)據(jù)采集、處理及地面檢測系統(tǒng)的研究姓名陳澤江申請學位級別碩士專業(yè)計算機應用技術指導教師范建軍20050101ABSTRACTTHERESEARCHFORSPACEGPSDATACOLLECTION、PROCESSINGABSTRACTTHISTHESISISBASEDONSPACEGPSDATARECEIVINGANDORBITDETERMINATION，ANDDEVELOPSTHEAUXILIARYGPSDATAPROCESSINGUNITANDCONCERNINGWORK．FIRSTTHETHESISINVESTIGATEDTHEPRELIMINARYKNOWLEDGEABOUTGPS，ANDANALYZEDTHEREQUIREMENTOFTHEAUXILIARYGPSDATAPROCESSINGUNIT，F(xiàn)ROMCHIPSELECTION，HARDWAREDESIGNTOTHEREALIZATIONOFTHESOFTWAREANDACCOMPLISHEDTHEDESIGNOFTHESYSTEM，ANDACHIEVEDTHETRANSPLANTATIONOFTHERTODREALTIMEORBITDETERMINATIONSOFTWARETOTHEOSBASEDONARM，ANDFINALLYDEBUGGEDANDOPTIMIZEDTHEMATHMODELINTHERTODSUCHASEKFEXTENDEDKALMANFILTERWITHTHEREALDATABEFORE．THERTODHASBEENAPPLIEDTOTHEFACTUALWORK．ACCORDINGTOTHEREQUIREMENTOFTHEGPSDATARECEIVINGANDRTOD，THETHESISDESIGNEDTHECONCERNINGSYSTEMTOVALIDATETHEDATA．ITCONSTRUCTEDTHESYSTEM，ANDACHIEVEDTHEREQUIREMENTANALYSIS，DESIGN，CODINGANDDEBUGGING．THESYSTEMCANANALYZETHEORBITDATAFROMRTOD，ANDPROCESSTHERESULT，ETC．THESOFTWAREHASBEENAPPLIEDTOTHEFACTUALWORKANDTESTIFIEDTHECORRECTNESSOFTHESYSTEM．KEYWORDSGPS、ARM、RTOD、EKF、DATAPROCESSING、5

簡介：工學博士學位論文分布式微型航天器的時鐘同步研究CLOCKSYNCHRONIZATIONRESEARCHFDISTRIBUTEDMICROSPACECRAFTSYSTEM龔曉春哈爾濱工業(yè)大學2007年10月CLASSIFIEDINDEXV4431UDC62138DISSERTATIONFTHEDOCTALDEGREEINENGINEERINGCLOCKSYNCHRONIZATIONRESEARCHFDISTRIBUTEDMICROSPACECRAFTSYSTEMCIDATEGONGXIAOCHUNSUPERVISPROFXUGUODONGACADEMICDEGREEAPPLIEDFDOCTOFENGINEERINGSPECIALTYMICROELECTRONICSSOLIDELECTRONICSAFFILIATIONRESEARCHCENTEROFSATELLITETECHDATEOFDEFENCEOCTOBER2007DEGREECONFERRINGINSTITUTIONHARBININSTITUTEOFTECHNOLOGY

簡介：西北工業(yè)大學碩士學位論文航天飛行器結構系統(tǒng)在熱力耦合環(huán)境下的健康監(jiān)控技術研究姓名萬婧申請學位級別碩士專業(yè)人機與環(huán)境工程指導教師宋筆鋒20060301摘要HEALTHMONITORINGFORAIRCRAFTSTRUCTURALSYSTEMONTHEHEATFORCECOUPLEDENVIRONMENTABSTRACTINTHISPAPER，TAKINGTHETORSIONRESISTEDBOXOFWINGINANAIRCRAFTASALLEXAMPLE，RESEARCHWORKFOCUSESONTHETECHNOLOGYOFAIRCRAFTSTRUCTURALHEALTHMONITORINGUNDERTHEHEATFORCECOUPLEDENVIRONMENTITINCLUDESFINITEELEMENTANALYSISOFTHEBOXMODEL、DATAPROCESSINGTECHNOLOGYANDEXPERIMENTMAINLYINTHEFIRSTPART，AFTERINTRODUCINGTHEBACKGROUNDOFTASKTHEMECHANICALCHARACTERISTICSOFTHEBOXMODELAREANALYZEDUNDERBOTHORDINARYANDHEATFORCECOUPLEDENVIRONMENTTHERESULTSINDICATETHATTHEMECHANICALCHARACTERISTICSOFTHEBOXMODELCHANGEDINTHELATTERWHICHWILLLEADTOFAULTSEASIERANDTHENTYPICALFAULTPATTERNSOFTHEBOXARESIMULATEDNUMERICALLYTHEBOXMODELCHARACTERISTICSCHANGEDUNDERFAULTSANDNORMALBYCOMPARINGWITHTHENORMALSECONDLYTHEDATAOFTHESEABOVESIMULATIONSAREAYALYZEDANDPROCESSEDWITHTHEHELPOFFOURIERTRANSFORMINORDERTOSTUDYTHEAPPLIANCEOFWAVELETTRANSFORMINTHEFIELDOFAIRCRAFTSTRUCTURALHEALTHMONITORINGTHEWAVELETTRANSFORMCANOVERCOMETHELIMIMTIONOFFOURIETRANSFORMANDHASABETTERTIMEANDFREQUENCYCHARACTERISTICSTHEFAULTDATACANALSOBEDESCRIBEDINBOTHTIMEANDFREQUENCYDOMAINNEXT，BASINGINTRODUCINGTHEWAVELETPACKETANALYSISTHEORYTHE“ENERGYFAULT”METHODISAPPLIEDINAIRCRAFTSTRUCTUREHEALTHMONITORINGANDTHEFAULTSCANBERECOGNIZEDANDDIAGNOSEDBYANALYZINGTHECHANGESOFENERGYINSIGNALSANAIRCRAFTHEALTHMONITORINGEXPERIMENTISINTRODUCEDINTHETHIRDPARTTHEOPTIMIZATIONDESIGNOFSENSORS’LAYOUTINTHEBOXMODELISCONSIDEREDDURINGTHECOURSEOFTHEEXPERIMENTBYANALYZINGANDPROCESSINGTHEEXPERIMENTDATA，THEWAVELETTRANSFORMISPROVEDTOBEFEASIBLECOMPLETELYKEYWORDSAIRCRAFTHEALTHMONITORING，F(xiàn)OURIERTRANSFORM，WAVELETTRANSFORM，WAVELETPAEKETANALYSIS，TIMEANDFREQUENCYDOMAIN，ENERGYFAULTMETHODII

簡介：中國科學院空間科學與應用研究中心博士后學位論文航天器自主導航和深空導航中的軌道動力學研究姓名劉迎春申請學位級別博士后專業(yè)空間物理學指導教師林寶軍20040901ABSTRACTTHISTECHNIQUEREPORTISTHESUMMARYOFTHEPOSTDOCTORALWORK，WHICHISFOCUSONORBITDYNAMICSOFSPACECRAFTAUTONOMOUSNAVIGATIONANDDEEPSPACENAVIGATIONSESSIONONEISREPORTONORBITDYNAMICSOFSPACECRAFTAUTONOMOUSNAVIGATIONBASEDONGPSDATACHAPTERONEISABRIEFSURVEYOFSPACECRAFTAUTONOMOUSNAVIGATION，WHICHISMAINLYBASEDONGPSDATACHAPTELTWOINTROUDUCEDSTHEBASICOFTHETIMEREFERENCEANDCOORDINATESFRAMESCHAPTERTHREEISTHEMEASUREMENTMODELANDFORCEMODELOFTHEGPSDATACHAPTERFOURILLUSTRATESSEVERALMETHODSOFTHEORBITPROPAGATIONCHAPTERFIVEISTHEALGORITHMSOFTHEINTERPOLATIONANDTHEINTEGRATIONCHAPTERSIXPRESENTSTHEEQUATIONSOFTHEEXTENDEDKALMANFILTERSESSIONTWOISREPORTONORBITDYNAMICSOFDEEPSPACENAVIGATIONCHAPTERSEVENISANINTRODUCTIONOFTHETRACKINGDATAANDMEASUREMENTMODELFORDEEPSPACESPACECRAFTCHAPTEREIGHTISAPRELIMINARYEVALUATIONOFORBITDETERMINATIONCAPABILITYOFTHETRANS‘LUNARTRAJECTORYCHAPTERNINEGIVESSOMECONCEPTSOFDEEPSPACEAUTONOMOUSNAVIGATIONKEYWORDSORBITDYNAMICS，SPACECRAFT，AUTONOMOUSNAVIGATION，GPS，DEEPSPACE

簡介：西北工業(yè)大學碩士學位論文基于特異航天零件的纖維纏繞線型和建模研究姓名嚴由嶸申請學位級別碩士專業(yè)機械電子工程指導教師史耀耀20040301西北T業(yè)大學碩上論文ABSTRACTABSTRACTFIBERREINFORCEPLASTICFRPISAKINDOFCOMPOSITEMATERIALSWHICHHASHIGHSPECIFICINTENSITY,HIGHSPECIFICRIGIDITY,LOWDENSITYEXCELLENTCORROSIONRESISTANCEFILAMENTWINDINGFWISAKINDOFFRPFORMINGPROCESSFRPISWIDELYUSEDINAERONAUTICS、ASTRONAUTICSANDOTHERFIELDSFORITSMERITSINTHISPAPER,AMATHEMATICMODELISSTRUCTUREDFORASPECIALPART,ANDAFWPATTERNISDESIGNEDBASEDONTHEMODELTHISPATERNISSIMULATEDBYCOMPUTERFIRSTLY,AMATHEMATICMODELISESTABLISHEDBASEDONSTUDIEDTHEFEATUREOFTHISPARTTHISPARTISDIVIDEDINTOSEVERALPARTSAFTERANALYZINGTHEGEOMETRICSHAPEGEODESICFWPATERNHASBEENDESIGNEDFOREACHSUBSECTIONSINCETHEAXISOFTHEPARTISNOTONTHESAMELINE,ITMAYBENECESSARYTOAMENDTHEPARTINORDERTOMAKEITEASETOPRODUCETHEAMENDABLEMETHODMOSTLYISTHEFWPATERNINTHEJUNCTUREOFFASTIGIATEDCOLUMNANDSPHERESECONDLY,UNDERVCLANGUAGE,THEPARTMODELHASBEENSTRUCTUREDCALLFOROPENGLINTHEPROGRAM,THEGEOMETRICPARAMETERHASBEENDEFINEDVARIABLEFORADAPTEDTHEPARTSWHICHHASSAMEGEOMETRICSHARPTHEFWPATTERNHASBEENSIMULATEDINTHECOMPUTERINTHELIGHTOFTHEOUTCOMEOFTHESIMULATING,WESEETHEFWPATTERNACCORDINGWITHTHEMATHEMATICSEQUATIONSOTHESIMULATINGFWPATTERNPLAYSANIMPORTANTROLEINDIRECTINGTHEREALFWTHEANALYZINGOFFWPATTERNANDDEVELOPINGHAVEGREATLYTHEORETICANDPRACTICALVALUEINTHEFWSEARCHFIELDOFTHEPARTSWHICHHASTHESAMEAXTSKEYWORDSCOMPOSITEMATERIAL,FILAMENTWINDING,GEODESIC,NOTSAMEAXESSIMULATION

簡介：中國科學技術大學碩士學位論文應用于航天測控系統(tǒng)的全數(shù)字IF擴頻接收機的碼同步技術研究姓名趙明申請學位級別碩士專業(yè)通信與信息系統(tǒng)指導教師戴逸民200261ABSTRACTABSTRACTTHISTHESISINVESTIGATESTHECODESYNCHRONIZATIONINDIGITALIZEDDS／SSIFRECEIVERUSEDINTHEFIELDOFTRACKING，TELEMETERINGANDCOMMANDTTCAMETHODOFCODESYNCHRONIZATIONISPRESENTEDINWHICHIFSIGNALSISSAMPLEDFIRST，THEMODELOFTHERECEIVERISINTRODUCEDANDTHENWEDISCUSSHOWTOSELECTSUITABLEPNCODEONTHESTANDPOINTOFSHORTENINGTHEACQUISITIONTIME，WEANALYZETHEPARTIALCORRELATIONOFGOLDCODEAFTERANALYZEANDCOMPARESEVERALMETHODSOFACQUISITION，WECHOOSESEQUENTIALDETECTIONBASEDONTHESLIDINGCORRELATIONASTHEFUNDAMENTALMODELFORTHECODEACQUISITIONANDTHENANEVENTUALDIGITALIZEDSCHEMEISPRESENTED，INWHICHTHESAMPLESARE1HITDIGITALIZEDANDMULTIPLEACQUISITIONPATHISUSEDWEESPECIALLYANALYZEDTHEPERFORMANCEOFTHECODEACQUISITIONMODELUNDERLAGERFREQUENCYOFFSETANDLOWSNRSECONDLY，WECHOOSETHENONCOHERENTDELAYLOCKLOOPASTHETRACKMODELANDINTRODUCETHEMETHODOFDIGITALIZEDIMPLEMENTATIONOFTHETRACKINGMODELINCLUDINGTHELOOPFILTERANDTHEDDFSWHICHREPLACESTHECONVENTIONALVCOLASTTHESIMULATIONMODELCONSTRUCTEDINSYSTEMVIEWANDTHERESULTSAREPRESENTEDTHESCHEMEISIMPLEMENTEDINFPGASUCCESSFULLYKEYWORDDIRECTSPREADSPECTRUM，IFSAMPLE，SEQUENTIALPROBABILITYRATIOTEST，1BITDIGITALIZED，F(xiàn)REQUENCYOFFSET，LOWPOWERCONSUMPTION，LOWSNR，HIGHACCURACYMEASUREMENT

簡介：中圖分類號V4443論文編號102870113S287學科分類號082504碩士學位論文不同空間環(huán)境對艙外航天服性能的影響研究生姓名寇翠翠學科、專業(yè)人機與環(huán)境工程研究方向航天員生命保障指導教師宋保銀教授南京航空航天大學研究生院航空宇航學院二О一二年十二月承諾書本人聲明所呈交的碩士學位論文是本人在導師指導下進行的研究工作及取得的研究成果。除了文中特別加以標注和致謝的地方外，論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果，也不包含為獲得南京航空航天大學或其他教育機構的學位或證書而使用過的材料。本人授權南京航空航天大學可以將學位論文的全部或部分內(nèi)容編入有關數(shù)據(jù)庫進行檢索，可以采用影印、縮印或掃描等復制手段保存、匯編學位論文。（保密的學位論文在解密后適用本承諾書）作者簽名日期

簡介：工學碩士學位論文航天器輻射傳遞系數(shù)算法研究SPACECRAFTRADIATIVETRANSFERCOEFFICIENTALGORITHMRESEARCH王正宇哈爾濱工業(yè)大學2009年6月CLASSIFIEDINDEXV4213UDC520DISSERTATIONFORTHEMASTERDEGREEINENGINEERINGSPACECRAFTRADIATIVETRANSFERCOEFFICIENTALGORITHMRESEARCHCANDIDATESUPERVISORACADEMICDEGREEAPPLIEDFORSPECIALTYAFFILIATIONDATEOFORALEXAMINATIONUNIVERSITYWANGZHENGYUPROFZHAOYANGMASTEROFENGINEERINGERGONOMICSANDENVIRONMENTDEPTOFASTRONAUTICENGINEERINGJUNE,2009HARBININSTITUTEOFTECHNOLOGY