已阅读5页，还剩7页未读， 继续免费阅读
版权说明：本文档由用户提供并上传，收益归属内容提供方，若内容存在侵权，请进行举报或认领
文档简介
ARESEARCHONDATAPROCESSINGMODELOFGPSDAMDEFORMATIONMONITORINGNETWORKABSTRACTCONSIDERINGTHEPARTICULARITYOFTHEGPSDAMDEFORMATIONMONITORINGNETWORK,ADATAPROCESSINGMODELBASEDONTHESTATIONORTHOGONALCOORDINATESYSTEMFORTHREEDIMENSIONGPSDAMDEFORMATIONMONITORINGNETWORK,WASPUTFORWARDALSO,AMATHEMATICALMODELOFUSINGTHECLUSTERINGANALYSISMETHODINFUZZYMATHEMATICSTOTESTTHERELATIVESTABILITYOFQUASISTABLEPOINTSORDATUMMARKSWASSUCCESSFULLYBROUGHTFORWARDTHEADJUSTMENTMETHODDURINGTHECOURSEOFDATAPROCESSINGWASQUASISTABLEADJUSTMENTATLAST,ASOFTWARESYSTEMOFTHREEDIMENSIONGPSDAMDEFORMATIONMONITORINGNETWORKWASDESIGNEDANDOPENEDUPWITHTHEHELPOFVISUALBASICLANGUAGEWITHTHREEPERIODSOBSERVATIONDATAFROMTHEGPSDEFORMATIONMONITORINGNETWORKOFADAM,ANADJUSTMENTCALCULATIONWASDONEBYTHESOFTWARETHECALCULATIONRESULTSHOWSTHATTHEMATHEMATICALMODELSCANBEMORESUITABLEFORTHEDATAPROCESSINGINGPSDAMDEFORMATIONMONITORINGNETWORKKEYWORDSGPS,DAMDEFORMATIONMONITORING,QUASISTABLEADJUSTMENT,CLUSTERINGANALYSIS1INTRODUCTIONWGS84COORDINATESYSTEMISGENERALLYUSEDINGPSBUTLOCALORINDEPENDENTCOORDINATESYSTEMSAREUSUALLYCHOSENINDAMDEFORMATIONMONITORINGNETWORKSFORTHEIRSMALLAREASDURINGTHECOURSEOFPASTDATAPROCESSING,THEADJUSTMENTUNDERWGS84COORDINATESYSTEMFORINDEPENDENTNETWORKSORNETWORKSWITHSEVERALFIXEDPOINTSISOFTENFIRSTLYMADETHEN,THETRANSFORMATIONFROMWGS84COORDINATESYSTEMTOLOCALORINDEPENDENTCOORDINATESYSTEMSISDONEFORGPSDEFORMATIONMONITORINGNETWORKSWITHREPETITIVEOBSERVATIONDATA,THEOBVIOUSCHANGEOFDATUMMARKSCOORDINATESUNDERTHETWODIFFERENTCOORDINATESYSTEMSCANBEBROUGHTBYTHETINYDEFORMATIONOFDATUMMARKSAMONGDIFFERENTPERIODSOFOBSERVATIONANDTHEGREATERERRORCANBEMADEDURINGTHECOORDINATETRANSFORMATIONIFALOCALGAUSSCOORDINATESYSTEMISCHOSEN,THEPROJECTIONDISTORTIONSCANALSOBEPRODUCEDBYTHETRANSFORMATIONITSELFFORTHEREASONSABOVE,THESTATIONORTHOGONALCOORDINATESYSTEMISCHOSENASTHEREFERENCECOORDINATESYSTEMFORDATAPROCESSINGOFGPSDAMDEFORMATIONNETWORKSANDTHEMATHEMATICALMODELISPUTFORWARDANDDEDUCED2DATAPROCESSINGMODELBASEDONTHESTATIONORTHOGONALCOORDINATESYSTEMFORTHREEDIMENSIONGPSDEFORMATIONMONITORINGNETWORKS21COORDINATESYSTEMTHESTATIONORTHOGONALCOORDINATESYSTEMISALEFTHANDCOORDINATESYSTEMITSORIGINISSETATONEOFTHEGPSMONITORINGPOINTSTHEEXAXISPOINTSATTHEMERIDIANPASSINGTHEORIGINITISONTHETANGENTPLANEOFTHEORIGINANDTHERIGHTNORTHISTAKENASFORWARDDIRECTIONTHEHZAXISISONTHENORMALLINEOFWGS84ELLIPSOIDATTHEPOINTANDTAKESOUTWARDASFORWARDDIRECTIONTHEEYAXISISALSOONTHETANGENTPLANEOFTHEORIGINANDUSESEASTFORFORWARDDIRECTIONIFTHEPOSITIONVECTOROFTHESTATIONORTHOGONALCOORDINATESYSTEMORIGINP0INWGS84ISEXPRESSEDAS,ACCORDINGTOTHE0RZYX0TGEODETICLATITUDEANDLONGITUDE（，）,THEPOSITIONVECTORBL0RIINTHESTATIONORTHOGONALCOORDINATESYSTEMORIGINOFARANDOMPOINTPICANBEGOTTHROUGHTHETRANSLATIONANDROTATIONOFITSWGS84POSITIONVECTORRIH（）（1）II0INTHEABOVEEQUATION,HCANBEWRITTENASHBLB000SINICOSCOSINCOIN（2）IFTHEBASELINEVECTORSOFTHETWORANDOMPOINTSANDINWGS84COORDINATESYSTEMANDTHETHESTATIONORTHOGONALPIJCOORDINATESYSTEMAREWRITTENASRESPECTIVELY,THEEXPRESSIONCANBEEASILYGAINEDASFOLLOWSTHEN,THERELATIONEQUATIONBETWEENTHETWOBASELINEVECTORSISEXPRESSEDASTHEREARETWOSTEPSINTHEGPSOBSERVATIONDATAPROCESSINGCOURSETHEYAREBASELINECALCULATIONANDNETWORKADJUSTMENTTHEBASELINEVECTORSINWGS84CANBEFIRSTLYGOTUSINGBASELINECALCULATIONSECONDLY,THEBASELINEVECTORTRANSFORMATIONFROMWGS84TOTHESTATIONORTHOGONALCOORDINATESYSTEMCANBEDONEWITH3ATLAST,THEADJUSTMENTOFGPSDEFORMATIONMONITORINGNETWORKSINTHESTATIONORTHOGONALCOORDINATESYSTEMCANBESUCCESSFULLYFINISHED22ADJUSTMENTMETHODANDMATHEMATICALMODELDEFORMATIONMONITORINGNETWORKSUSUALLYREQUIREHIGHERPRECISIONANDIFSEVERALFIXEDPOINTSAREADOPTEDFORDATUM,THEOBSERVATIONPRECISIONCANBEGREATLYREDUCED,BECAUSETHEKNOWNDATASPRECISIONISOFTENLOWERTHANTHEREQUIREDPRECISIONANDTHEBEGINNINGPOINTSDISPLACEMENTCANMAKEANNEXEEFFECTTOOBSERVATIONDATAESPECIALLYDURINGTHECOURSEOFREPETITIVEOBSERVATIONSOTHECLASSICALADJUSTMENTMETHOD,WHICHHASSOMEGIVENPOINTS,ISGENERALLYNOTUSEDBUTITISIMPORTANTTOCHOOSETHEREFERENCEPOINTSWITHSTABLEPHYSICALSTATUSASDATUMOFDEFORMATIONMONITORINGNETWORKSCONSIDERINGTHEABOVETWOCASES,THEQUASISTABLEADJUSTMENTCANBEEMPLOYEDTOMAKETHEMORESTABLEUNKNOWNDATATHECOORDINATESOFRELATIVELYSTABLEPOINTSAWAYFROMTHEDAMMATCHTHEIRSTABLEVALUESTHEN,THEREARENODISTORTIONOFSURVEYINGRESULTANDRELATIVELYSTABLEDATUMANDTHEGOALTOMONITORTHEDEFORMATIONCANBEREACHEDWELLTHEADJUSTMENTMODELOFGPSRANKDEFICIENTNETWORKSCANBEWRITTENASWITHTHELEASTSQUAREMETHOD,THENORMALEQUATIONISEXPRESSEDASNXW（5）WHERENEQUALSPAANDWEQUALSPLATATANDTHEEQUATIONCANBEGOTASFOLLOWSRNRARWHEREADENOTESTHERANKDEFICIENTMATRIX，WHOSERANKDEFICIENTNUMBERDISNRIFSISASETOFRADICALOFZEROSPACENAANDRSDENOTESD,THEEQUATIONISWRITTENASAS0（6）WHENTHEINNERPRODUCTSPACEISDEFINEDASX,YRYANDRRD,XTUNDERTHECONSTRAINTCONDITIONRXMIN,THEFOLLOWINGEQUATIONCANTBEGOTRX07STWITH5AND7,THESOLUTIONEQUATIONOFWEIGHTINGRANKDEFICIENTNETWORKSCANBEEXPRESSEDASWHEREDENOTESQRWHENRISADIAGONALMATRIXANDITSVALUEIS1OR0,（8）CANBECOMETHEMODELOFQUASISTABLEADJUSTMENTTHESMATRIXCANBEGIVENACCORDINGTOTHECONDITIONAS0ANDTHESMATRIXOFGPS3DIMENSIONALDEFORMATIONMONITORINGNETWORKSISWRITTENAS23MATHEMATICALMODELOFCALCULATINGQUASISTABLEPOINTSRELATIVESTABILITYWITHCLUSTERINGANALYSISFORGPSDAMDEFORMATIONMONITORINGNETWORKS,THESTABILITYOFDATUMMARKSMUSTBEFIRSTLYTESTEDINTHEOBSERVATIONDATAPROCESSINGTHOUGHTHERELATIVELYSTABLEAREAISCHOSENFORBUILDINGDATUMMARKSWHENGPSDAMDEFORMATIONMONITORINGNETWORKSAREDESIGNED,THEDEFORMATIONOFDATUMMARKSCANCOMEINTOBEINGEVENIFTHEQUASISTABLEADJUSTMENTMETHODISUSED,THESTABILITYTESTNEEDSTOBEMADE,TOOTHEQUASISTABLEPOINTSQUASISTABLEPOINTSORDATUMMARKSINDESIGNSCHEMEWITHMARKEDDEFORMATIONSHOULDBEELIMINATEDTHEMATHEMATICALMODELOFCALCULATINGQUASISTABLEPOINTSORDATUMMARKSRELATIVESTABILITYWITHCLUSTERINGANALYSISINFUZZYMATHEMATICSISPUTFORWARDTOENSURETHESTABLEQUASISTABLEPOINTSORDATUMMARKSINGPSOBSERVATIONDATAPROCESSINGONECHARACTERISTICOFQUASISTABLEADJUSTMENTISTHATTHECORRECTIONVALUEVOFOBSERVATIONDATAAFTERADJUSTMENTISINVARIABLESOTHEADJUSTEDVALUELOFOBSERVATIONDATAISALSOINVARIABLEANDITISSHOWNTHATTHENETWORKSHAPEAFTERADJUSTMENTISUNCHANGEDTHEOBSERVATIONDATAOFGPSNETWORKSADJUSTMENTISBASELINEVECTORSCOORDINATEDIFFERENCESIN3COORDINATEAXISDIRECTIONSTHEN,AFTERTHEQUASISTABLEADJUSTMENTOFTWOPERIODSOFOBSERVATIONDATA,THEDIFFERENCESOFCOORDINATEDIFFERENCESOFTWORANDOMQUASISTABLEPOINTSIN3COORDINATEAXISDIRECTIONSBETWEENTHETWOPERIODSAREINVARIABLESO,THESEVALUESCANTBECHANGEDWITHDIFFERENTCHOICESANDWORKCANBEFINISHEDONCEFORADOTOAVOIDTHETROUBLEOFSOMEMETHODSCALCULATINGSTEPBYSTEPANDDENOTETHECOORDINATEDIFFERENCESOFTWOL1IJ2IJRANDOMQUASISTABLEPOINTSIANDJAFTERTWOPERIODSOBSERVATIONDATAADJUSTMENTISTHEDIFFERENCEOFCOORDINATEDIFFERENCESBETWEENL1IJTWOPERIODSANDEQUATIONSAREASFOLLOWSSTATISTICISWRITTENASIFTHECHANGEOFBETWEENTWOPERIODSISCAUSEDBYTHEACCIDENTALERRORL1IJOFGPSOBSERVATION,ITISEXPRESSEDASTHEFUZZYMEMBERSHIPGRADEOFTHERELATIVESTABILITYOFTHETWORANDOMQUASISTABLEPOINTSIANDJISDEFINEDASTHATISTOSAY,THEFUZZYRELATIONOFTHERELATIVESTABILITYOFQUASISTABLEPOINTSISTHEPROBABILITYDENSITYVALUEOFSTANDARDNORMALDISTRIBUTIONABOUTTO,ITCANBEDEFINEDASUIJRIJ0FORSUPPLEMENTITISALSOASFOLLOWSUIANDTHEFUZZYRELATIONOFRELATIVESTABILITYOFQUASISTABLEPOINTSDEFINEDBY12AND13ONLYSATISFIESTHESYMMETRYOFEQUIVALENCEFUZZYRELATIONTHEREFLEXIVITYCANBESTANDARDIZEDAND,ISREDEFINEDASRIJTHEFUZZYRELATIONRHASMETTHEFIRSTTWOCONDITIONSOFFUZZYEQUIVALENCERELATIONTHENRISAFUZZYSIMILARMATRIXTOTRANSITIVITY,THEFUZZYSIMILARMATRIXCANBECHANGEDTOAFUZZYEQUIVALENCEMATRIXWITHTHEHELPOFTHETRANSITIVECLOSEDPACKAGETRANDTHEFUZZYANALYSISCANBEDONETHESORTEDINDEXPARAMETEROFCLUSTERINGANALYSISISCOMPUTEDWITHTHESTATISTICHYPOTHESISMETHODIFTHECHANGEOFBETWEENTWOPERIODSISL1IJCAUSEDBYTHEACCIDENTALERROROFGPSOBSERVATION,ITISEXPRESSEDASFORTHEGIVENCONSPICUOUSLEVEL,THEREISACRITICALVALUEWITH,KTHECORRESPONDINGVALUECANBEGOTFROM14ANDISTHESORTEDRRINDEXPARAMETEROFCLUSTERINGANALYSISOFQUASISTABLEPOINTSRELATIVESTABILITYTAB1BELOWSHOWSTHEVALUESOFANDOBVIOUSLYSHOULDBECHANGEDINTHEPRACTICEITISCONCLUDEDTHATALARGERSHOULDBECHOSENACCORDINGTOTHEOPERATIONRULEINCLUSTERINGANALYSISANDITCANBERECOMMENDEDTHATANDSHOULDUSE5AND01465RESPECTIVELY3ACOMPUTATIONEXAMPLEANDRESULTANALYSISTHECOMPUTATIONEXAMPLEWASCHOSENFROMTHEGPSDEFORMATIONMONITORINGNETWORKOFSOMEROCKANDSOILGRAVITYDAMTHEREWERE3PERIODSOFOBSERVATIONDATAINTOTALTHEOBSERVATIONDATESWEREMAR4TO7,JUN4TO11,ANDAUG31TOSEPT4IN2001THEREWERE75GPSMONITORINGPOINTSINTHISNETWORKAND6OFTHETOTALWEREINTHERELATIVELYSTABLEAREAOFTHELOWERRIVEROFTHEDAMTHEOTHER69POINTSWEREATTHEDAMBODYALLTHEMONITORINGPOINTSWEREBUILTONOBSERVATIONPIERSANDHADCOMPULSIVECENTERINGEQUIPMENTANDALLTHEOBSERVATIONWASFINISHEDBY6ASHTECHZSURVEYORDUALFREQUENCYRECEIVERSTHEPERIODSOFALLTHEPOINTSWEREMORETHANANHOURTHEBASELINESOLUTIONOFGPSOBSERVATIONDATAWASGAINEDBYTHEASHTECHASSOCIATEDSOFTWARESOLUTION25FOREVERYPERIOD,EVERYDAYOBSERVATIONDATAWASPROCESSEDSINGLYTHEPERIODSOFTIMEWITHBADSIGNALSWEREFIRSTELIMINATEDIFTHEYWERESTILLNOTELIGIBLE,THEOBSERVATIONDATAWASDELETEDTHEN,WITHEVERYDAYQUALIFIEDBASELINES,THENETWORKADJUSTMENTWASPREPAREDTHEBASELINESOLUTIONPRECISIONISLISTEDINTAB16MONITORINGPOINTSINTHERELATIVELYSTABLEAREAOFDAMLOWERRIVERBANKSWEREUSEDASFIXEDINITIALDATUMANDTHEADJUSTMENTWITHFIXEDPOINTSWASDONEWITHTHEADJUSTMENTRESULTBEINGANALYZED,ITWASSHOWNTHATTHEDISPLACEMENTAMONG6INITIALPOINTSCOULDREACHABOUT23MMANDTHEMONITORINGPOINTSPRECISIONAFTERTHEADJUSTMENTWITH6FIXEDPOINTSWAS12TIMESLARGERTHANTHEPRECISIONUSINGQUASISTABLEADJUSTMENTTHERESULTALSOEXPLAINEDTHEDISPLACEMENTOFINITIALPOINTSBECAUSEFIXEDINITIALDATUMCOULDREACTONOBSERVATIONDATAFORCOMPULSIVEFIXING,THEPRECISIONWASBADINORDERTOTESTTHESTABILITYOFQUASISTABLEPOINTS,THEMATHEMATICALMODELOFCLUSTERINGANALYSISMETHODWASEMPLOYEDITWASFOUNDTHATTHEQUASISTABLEPOINTKL3INYDIRECTIONWASOBVIOUSLYDIFFERENTFROMTHEOTHER5POINTSWHENTHESECONDPERIODOFOBSERVATIONWASCOMPAREDWITHTHEFIRSTANDKL3INYANDZDIRECTIONSWASDISTINCTLYDIFFERENTFROMTHEOTHERSWHENTHETHIRDWASCOMPAREDWITHTHEFIRSTTHEN,KL3WASELIMINATEDAFTERINTEGRATINGTHECLUSTERINGANALYSISRESULTOFTHESECONDANDTHETHIRDPERIODSATLAST,KL1、KL2、KL7、KR1ANDKR3WERETAKENASQUASISTABLEPOINTSBECAUSETHEREWASNOQUASISTABLEADJUSTMENTFUNCTIONINGPSASSOCIATEDSOFTWAREOFGPSMANUFACTURERSATHOMEORINFOREIGNCOUNTRIES,THENETWORKADJUSTMENTSOFTWAREWASDESIGNEDFORGPSDEFORMATIONMONITORINGNETWORKSUSINGV
温馨提示
- 1. 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 2024年农事用火集中整治活动方案策划方案
- 冬季长跑方案
- 2024年中秋节活动方案策划方案
- 社区元旦策划方案
- 网站商品推广策划方案
- xx县搬迁旧房拆除后土地复垦验收工作方案
- 城区学校校园周边环境综合整治方案
- 2024学年度上学期学研部工作计划方案
- 如何制定感恩节活动策划方案
- 陕西省榆林市(2024年-2025年小学四年级语文)部编版综合练习（下学期）试卷及答案
- 医院危急值制度落实查检表及整改-临床科室(每季)
- 2024年通用技术昆明机床招聘笔试参考题库含答案解析
- 法律法规与合规培训
- 聚合氯化铝安全技术说明书
- 中职语文教案：高尔基(节选)教案
- 电大国开专科（附答案）《办公室管理》形考在线(形考任务二)试题
- 数据治理法规与合规
- 砖柱及铁艺大门施工方案
- 中建【方案范例】塔机附着安全专项施工方案
- 员工请假调休表
- 闭合导线计算(自动计算表)附带注释及教程
评论
0/150
提交评论