坐标转换中英文翻译—外文翻译毕业论文

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1、本科毕业设计（论文）中英文对照翻译院（系部）　专业名称　年级班级　学生姓名　指导老师XXX年X月XAbstractStudiesonqualityevaluationofcoordinatetransformationhavenotyettocomprehensivelyinvestigatethesimulationabilityandreliabilityofatransformation.Thispaperpresentsacomprehensivequalityevaluationsystem(QES)forcoordina

2、tetransformationthatincludesthetestingofreliabilityandsimulationability.TheproposedQESwasusedtotestandevaluatetransformationsusingtypicalcommonpointdistributionsandtransformmodels.Boththetransformationmodelanddistributionofcommonpointsarefactorsintheeffectivenessofatra

3、nsformation.TheperformancesoftypicalcommonpointdistributionsandtransformmodelsaredemonstratedusingtheproposedQES.Keywords：coordinatetransformation;QES;reliability;simulationreliability;commonpointdistribution;transformmodelI.INTRODUCTIONInformationaboutcommonpointscons

4、istsofsignals.However,noisecausedbyinadequaciesintheprecisionofsurveyingtechniques,byshortcomingsincomputationalmodels,andbyvariationsduetocrustalmovements,etc.alsobecomeincorporated.Thisnoisecanshowsystematicorrandomcharacteristics,orcanevenappearatsomepointsasgrosser

5、rors.Duringcomputations,randomerrorscanbeexposedasresiduals,whilesystematicerrorscanbesimulatedbysuitabletransformationmodels.Incontrast,grosserrorsareabsorbedinparametersthatresultinremarkabledistortionofthetransformation.Forthisreason,anoptimaltransformationmusthavet

6、heabilitytosimulatesignalsandsystematicerrors(simulationability)andalsotodetectanddefendagainstgrosserrors(reliability).Precisionisgenerallyconsideredtobeauniqueindicatorthatreflectsthequalityofatransformation(WellsandVanicek1975;Appelbaum1982;Featherstoneetal.1999).Ch

7、enetal.(2005)proposedanumberofsimulationindicatorsforevaluationoftheperformanceofatransformation.Youetal.(2006)usedleast-squarescollocationtoeliminatenoisefromcommonpoints,butfoundthattheresultingisotropicalcovariancewasoftennotcorrect.Hakanetal.(2006)investigatedtheef

8、fectofcommonpointdistributiononreliabilityofadatatransformation.Theyestablishedthattheredundancynumbersindatatransfor