GPS基准站坐标分量时间序列的噪声特性分析 (1)

26220065JOURNALOFGEODESYANDGEODYNAMICSVoI.26No.2May20061671-5942200602-0031-04GPS*3001803GPS9GPSGPSGPSGPSP227ANOISEPROPERTIESINTIMESERIESOFCOORINATECOMPONENTATGPSFIUCIALSTATIONSHuangLirenFirstCrustMonitoringandApplicationCenterCEATianjin300180AbstractThenoisepropertiesintimeseriesofcoordinatecomponentatthreeGPSfiduaciaIstationsdistribu-tedindifferentgeographicaIIocationsareanaIyzedbyuseofpowerspectraIdensityandspectraIindexmethod.TheresuItsindicatethataIIthenoisetimeseriesof9coordinatecomponentshavethepropertyoffIickernoisepIuswhitenoise.ItisconsistentwiththeresuItsobtainedatmanyotherGPSfiduciaIstationsaroundtheworId.TheresuItsin-dicatethatthenoisepropertymaybeinherentpropertyoftheGPSobservationtechnigue.SothatanaIyzingthetimeseriesobtainedbytheGPSobservationthenoisepropertyshouIdbetakenintoaccountandtheobservationsshouIdbeweightedcorrectIyinordertofitintheactuaIsituation.TheanaIysismethodandproceduresareintro-ducedandsomeproposaIsforfurtherstudyareaIsogiven.wordsGPStimeseriesnoisefIickernoisepowerspectraIdensityspectraIindex125GPS199951~4*2005-11-18194226GPSBock5GPSNikoiaidis6GPSfiickerGPS278!PffPf@fI1I1IPffI=0I=-1I=-2randomwaik53GPSyti=a+bti+csin2ti+icos2ti+esin4ti+fcos4ti+2Ijj=1giHti-Thj+2Ihj=1hiHti-Thjti+2IIj=1Iiexp-ti-Thjti/!jHti-Thj+1itii=1Nabcief9gjHTgjH0H1hjThjj=1IhhIThjIjexp-ti-TIj/!jTIjTIjj=1II!j10#1i3JIXN40.07N117.53E1999.1630~2005.8041DLHA37.38N97.38E1999.1630~2005.7849XIAG25.60N100.25E1999.1630~2005.80418.12001.87008.92004.98364IOR6^1i-median^1i-w/2i+w/23XIOR^1i-w/2i+w/2IORww/23/423!#...http//!4390.25%JIXNU~1.54%XIAGE1135PowerSpectrabySineMuItitapers12!133911Tab.1ResultsofspecturalindexJIXN-N-0.68-0.62JIXN-E-0.67-0.55JIXN-U-0.75-0.70DLHA-N-0.86-0.91DLHA-E-0.76-0.65DLHA-U-0.85-0.78XIAG-N-0.60-0.60XIAG-E-0.60-0.52XIAG-U-0.74-0.636139#=06#=-1#=0#=-2GPS3GPSGPS6GPSGPSReferences1.J.20032334~8.1NiuZhijunYouXinzhaoWanggietaI.VeIocityfieIdsofcrustmovementofChinacomparisonbetweenresuItswithGAMITandGISPYJ.JournaIofGeodesyandGeodynam-ics20032334-8.inChinese2.J.D20033312~20.2ZhangPeizhenDengOidongZhangGuominetaI.StrongseismicityandactivebIocksinChinacontinentJ.ScienceinChinaSeriesD200333sup.12-20.inChi-nese3.J.D20033321~32.3WangMinshenZhenkangNiuZhijunetaI.Present-daycrustaImovementandactivebIocksinChinacontinentJ.ScienceinChinaSeriesD200333sup.21-32.inChinese4.M.2004.4LaiXianHuangLirenXuJushengetaI.Present-daycrustaImovementinChinacontinentM.BeijingSeismoIogicaIPress2004.inChinese3833!RobertLParker.PSDpowerspectrabysinemuItitapers!2-10-7~10-689200km!s5.73References1.GPSJ.2003231107~113.1ChenDefuLiZhengyuanandChenPeng.ObservationoffixedtitieddeformationandGPSgeodesyJ.JournaiofGe-odesyandGeodynamics2003.231107~113.inChi-nese2.J.199111110~22.2WuYiiinetai.Trackanaiysisofcrustaideformationanoma-iiesbymuitiparameterJ.CrustaiDeformationandEarth-guake199111110-22.inChinese3.EIS2000M..3JiangJunLiShengieandZhangYanbing.EIS2000earth-guakepremonitoryinformationdeposesystemM.BeijingSeismoiogicaiPress.inChinese4.GISM.2002.4LiShengieLuYuanzhongCheShietai.SystembasedonGISforearthguakeanaiysisandpredictionM.ChengduChengduMapPubiishHouse.inChinese5.J.198682211~225.5ChenDefuetai.PreiiminaryopiniononthefeaturesandciassificationofanomaiypatternsofcrustaitiitJ.ActaSeismoiogicaSinica.198682211-225.inChinese6.J.1999192149~154.6NiuAnfuZhangYanbingetai.Ontheheterogeneityoftheanomaiyintensityofthecrustaideformationpriortoearth-guakesJ.Earthguake1999192149-154.inChi-nese7.J.200323255~60.7LiZhengyuanChenPengetai.Short-impendingtidevaria-tionfeaturesofstrongearthguakesourceareainSichuanandYunnanJ.JournaiofGeodesyandGeodynamics200323255-60.inChinese8.J.2004184300~305.8NiuAnfu.Thecharacteristicsofdeformationinsouthwestre-gionbeforeandafterLijiangearththguakesJ.IniandEarth-guake2004184300-305.inChinese9.J.200222129~33.9NiuAnfuZhangJingetai.Studyoncontinuousiyacceier-acteddeformationandthereiationshipwithearthguakesJ.JournaiofGeodesyandGeodynamics200222129~33.inChinese10.J.200323274~76.10LiuXuyanandHongxing.OnearthtideandseismicwaveJ.JournaiofGeodesyandGeodynamics2003.23273-76.inChinese11.TJ-IIJ.200323274~76.11LiJieandZhouZhongyi.AnaiysisofdigitizedofobservationTJ-IIbore-hoiebodystrainmetersJ.JournaiofGeodesyandGeodynamics2003.23274-76.inChinese335BockY.EnvironmentaiissuesandmonumentationA.IGSworkshopC.BernMarch12004.6Nikoiaidis.R.Observationofgeodeticandseismicdeforma-tionwiththegiobaipositioningsystemD.UniversityofCaiifornia2002SanDiego.7AgnewDC.Thetime-domainbehaviorofpower-iawnoisesJ.Geophys.Res.Lett.199219333-336.8.J.19981212~16.8Zhushouhong.VaiueanaiysisofthepowerspectracoefficientofsingieprecisionciockJ.PubiicationsofShaanxiAstro-nomicaiObservatoryoftheNationaiTimeService19981212-16.inChinese9.J.19911011~6.9HuangLiren.DynamicpredictionofseaieveivariationJ.BuiietinofOceanography19911011-6.inChinese10.19816.9J.19822463~71.10LiuBenpeiLiJianzhongandLiChangzhi.crustaideforma-tionofthe1981DaofuearthguakeJ.CrustaiDeformationandEarthguake19822463-71.inCh