简介：Onetypeofaerialcablewayconsistsofacontinuouscable,whichworksatthesametimeascarryingcableanddrawingcable.Thiskindofcablewayissupportedbymanytowers,whichdividethetotallengthinlinearsections.Evensmalldeviationsfromtheplanedlayoutcanincreasethestrainofthecableandthedangerofderailments.Thedeviationsofthepositionofthetowersfromtheplanedlayoutareduetolocalslidingorsinkingofthefoundationorothermechanicalmovements.Uptonowtheaxisofthecablewayswereperiodicallymeasuredbytraditionalmethods.ThegoalofthisprojectistodemonstratethepossibilityofmeasuringtheaxisofacablewaywithGPStechniques,whilethecableismoving.Theresultsshowthattheproposedmeasuringdeviceprovidespreciseresultsinasimpleandreliableway.

简介：Amonitoringschememustbesodesignedthatseveralpossiblemod-elscanbeefficientlyseparatedinthestageofanalysisofdeformationmeasure-ments.BasedontheconceptofseparabilitydevelopedbyChenandChrzanowski,amethodologyforthedesignofmonitoringschemeshasbeendevelopedbytheau-thors.Inthemethodacomputersimulationtechniqueisemployed,intowhichsomeruleshavebeenelaboratedallowingminimalhumanintervention.Inthispa-perthecriterionisfirstpresentedandthedesigntechniqueusingthesteponeup-datingprocedureisdiscussed.Finally,designofasimulatedmonitoringnetworkismadeasademonstratingexample.

简介：Dynamiccharacisticsoflargestructures,suchastallbuildings,long_spansuspension,cable_stayedbridgesandtallchimneys,includingrelativedisplacementsandvibratingfrequencies,arekeytoassesstheirdriftandstressconditions,Thesestr_ucturesaredifficulttomeasuredirectly,especiallyundertheconditionofearthquakesorstrongwind/typhoon.Ingeneral,accelerometersarethemostcommoninstrumentsusedtomonitortheresponseofstructuralsystems,butdisplacementmeasuringrequiresprocessingbydoubleintegration.Theintegrationprocesscannotbeautomatedbecauseofthefollowingrequirementsofsignalprocessing:(a)choiceoffiltersandbaselinecorrection(theconstantsofintegration),and(b)substantialjudgmentswhenanomaliesexistintherecords.Consequently,thisprocesscanleadtoerrorsinthecalculationofvelocitiesanddisplacements,someasurementswithaccelerometercannotbeusedtodiscoverdisplacementsatthecentimeterlevelinreal_timeornearreal_time.Othertraditionalmethods,likelasercollimatorandtotalstation,canbealsoappliedtomeasuredisplacementsatveryhighprecision,butcannotworkproperlyduringearthquakesorstrongwinds/typhoons,andinmostcasesdonotworkinreal_timeornearreal_time.Untilrecently,therearenoefficientorfeasiblemethodstomeasuredisplacementsduringanearthquakeorseverewind.Therefore,thereisagreatneedfordevelopinganewmethodortechniquetomonitorthedynamiccharacteristicsoflargestructurespreciselyinreal_timeornearreal_timeunderbadconditions.　　Fortunately,recentadvancesinGlobalPositioningSystem(GPS)technologyenableabove_mentionedlong_periodchangesofstructurestobereliablymonitored.GPSreceiverswithacapabilityofresolvingmotionatthecentimeterorsub_centimeterlevelandsamplingfrequency10Hzoreven20Hzarenowavailablefromseveralmanufacturers.Thatprovidesagreatopportunitytomonitorlong_periodchangesofstructuresreliably,andwillbeveryusefulfors

简介：多，路径长在GPSapplications被认为主要错误来源。多，路径完成的GPS信号的特征被分析，基于哪个考虑动态变丑监视的特征的一个实验被执行了。在二连续的天内的观察数据的答案结果被一个方法处理，它联合过滤的小浪和在二连续的天之间的微分修正。研究证明多，路径错误在连续的天有更强壮的重覆性；在显著地减轻影响以后多，路径完成，为GPS动态变丑监视的three-dimensionalpositioning的精确性能达到公里水平，特别地在垂直部件改善的明显的精确性。GPS的特征多表明路径，试验性的计划并且质并且结果的定量分析被详细说明。

简介：地区性的ionospheric模特儿被收养到determinesatellite-plus-receiver微分延期。satel-lite-plus-receiver微分延期作为经常的价值被估计为每天。双频率的GPS伪范围observ-ables是usedtocompute垂直侦探(VTEC)。所有每月吝啬的VTEC侧面被在2000和2004之间的北京IGS地点的图usingGPS数据代表。VTEC的每月平均的价值和振幅被图也代表。结果显示VTEC有季节的相关性。在2000的VTEC的每月平均的价值和振幅比那in2004大大约2倍。最大的VTEC价值在三月和4月被观察，当最小的VTEC价值在12月被观察时。季节的变化趋势被发现在多项式在2000和2004之间适合以后类似。

简介：大留下来电缆线的桥的构造时期长，并且结构变丑是复杂的。任何错误将潜在地在建设期间影响伸臂排列和内部力量。为了在建设期间并且确切保证安全，决定伸臂排列，当上层建筑的构造开始时，动态变丑监视立即被需要。这篇论文瞄准变丑在Sutong桥构造期间监视的要求，并且基于监视系统的遥远的即时动态几何变丑介绍实现和GPS和georobot的观察计划，然后研究处理方法的数据并且枚举一些应用程序成就。长期的操作在Sutong桥构造期间显示系统稳定地运行，结果是可靠的。

简介：ThispaperdevelopsaWebGIS-basedGPSvehiclemonitoringsystemwithtypicalthree-tierapplicationarchitectureofB/Spattern.Itprovidesordinaryregistereduserswithavalidandconvenientmeanstogetaccesstoreal-timeGPSlocationinformationofcertainmovingvehiclesatanyplace,andfurtheroffersapowerfultoolforsuperuserstomanageuserinformationandremotelymonitorthosevehiclesandprovidecorrespondingservicestimelyifnecessary.Thesystemarchitecture,functionmodules,keytechnologiesandapplicationinterfacesaregiven.Finally,thevalidityofoursystemisdemonstratedinpracticalcases.

简介：FY-1D是中国的第二颗国家操作气象卫星，并且与监视雾相比是好一些的。然而，关于用FY-1D监视雾的研究是很少的。在这篇论文，基于典型FY-1D数据，雾是光谱的在不同隧道的特征用用FY-1D监视雾的直方图分析方法，和一个方法被分析被建议。结果显示第4条隧道是的第一and为雾的鉴定的FY-1D的代表性的隧道。在第一隧道，雾与一致静脉，光滑的顶，和清晰边界，并且它的反照率是20%∼48%。在第4隧道，雾的亮度和温度是272∼289K，和在雾的并且扎根的表面的家之间的差别价值是不超过6K。

简介：把技术基于数字图象处理，一个即时系统被开发监视并且检测设计结构的动态排水量。由用一个自我规划的软件处理图画，在某个坐标系统的一个目标的即时坐标能也被获得，并且推进动态排水量数据和目标罐头的曲线被完成。数据的也就是说自动的聚会并且即时处理能被这个系统同时执行。首先，为这个系统，一种未触动过的监视技术被采用，罐头它监视或检测目标几到几百米分开；第二，它有灵活安装状况和亚毫米度的好监视精确；第三，它是合适的为动态、伪动态、静态大工程结构监视。通过大桥的几测试和应用程序，系统的好可靠性和优势被证明。

简介：CombiningthedenseGPSandgravityobservationdatainSichuan-Yunnanarea,wheretherearetherelativelycompleteactivetectoniczonesandseismicdata,thispaperappliesthegeodesyandgeophysicalinversiontechniqueandtheadvancednumericalsimulationtothesynthesisstudyofgeodesyinversiontofindthedynamicprocessoftectonicmovementanddeformationintheareaandfinallytoinvestigatethekinematicscharacteristicofthegeologicalstructureofdifferentlayeranddifferentscale.Thispaperdiscussesthekinematics,dynamicsmodelaboutthecrustalmovementofactiveblocksinSichuan-Yunnanareaanditsadjacentareas.

简介：Theprocessingofnonlineardatawasoneofhottopicsinsurveyingandmappingfieldinrecentyears.Asaresult,manylinearmethodsandnonlinearmethodshavebeendeveloped.Butthemethodsforprocessinggeneralizednonlinearsurveyingandmappingdata,especiallyfordifferentdatatypesandincludingunknownparameterswithrandomornonrandom,areseldomnoticed.Anewalgorithmmodelispresentedinthispaperforprocessingnonlineardynamicmultiple-periodandmultiple-accuracydataderivedfromdeformationmonitoringnetwork.

简介：桥为工作的及时估价的缘故调节，测量桥结构的动态特征很重要、必要。监视测试的GPSdynamic在武汉Baishazhou桥被执行，它是最长的跨度之一留下来电缆线的桥在中国被造了。这篇论文介绍试验性的实现计划和数据处理方法。中间的跨度的颤动特征留下来ofcable的桥牌被使用有效地获得光谱分析途径。测量结果与理论设计价值很相同。研究表明那，高采样率的withGPS接收装置和合适的数据处理方法，桥结构的颤动特征能与高精确性被决定。

简介：Thefeasibilityofmoni-toringthechangeofcitysettlementusingGPSsurveyinginsteadoflevel-ingisstudied.AfiducialnetworkandamonitoringnetworkareestablishedinNingbocity.TwoperiodsofGPSobservationarecompleted.Somemeasuresaretakenduringtheobser-vationinordertoensuretoobtainthehigh-preciseheightcomponent.TheSaastamoinenmodelisadoptedinthedataprocessingofthedrycomponentpartofthetroposphericdelay.Thewetcomponentchangeofthetropo-sphericdelayisestimatedbystochasticprocessesmodel.WhenBernesesoft-wareisusedtoprocessthedata,themillimeterlevelprecisionofheightmeasuringisachieved.

简介：Anewsimilarsingle-differencemathematicalmodel(SS-DM)anditscorrespondingalgorithmareadvancedtosolvethedeformationofmonitoringpointdirectlyinsingleepoch.ThemethodforbuildingtheSSDMisintroducedindetail,andthemainerrorsourcesaffectingtheaccu-racyofdeformationmeasurementareanalyzedbriefly,andthebasicalgo-rithmandstepsofsolvingthedeform-ationarediscussed.Inordertovalidatethecorrectnessandtheaccuracyofthesimilarsingle-differencemodel,thetestwithfivedualfrequencyreceiversiscarriedoutonaslidewaywhichmovedinplaneinFeb.2001.Inthetest,fivesessionsareobserved.Thenumericalresultsoftestdatashowthattheadvancedmod-eliscorrect.