GPS数据处理及其在地壳运动监测中的应用

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1、中国地震局分析预报中心硕士学位论文GPS数据处理及其在地壳运动监测中的应用姓名：王武星申请学位级别：硕士专业：固体地球物理指导教师：顾国华2003.6.18中国地麓局分祈预报中心硕士论文摘要AbstractDuringtheperiodofpreparationandoccnrre“flCeofearthquakes，thecrustaroundtheepicenterswillmoveanddeformwithgh粼accumulation．concentrationandintensification．W

2、氇thedevelopmentoftheGPS

3、technologyinGeodesBthemonitoringofthecrustalmovementwithGPShasbecomeaveryimportantapproachtoearthquakeprediction．1抽eCrustalMovementObservationNetworkofChina(CMONOc)callproviderealtimeGPSobservationdataofthecrustalmovementinChinesemainlandwitll“ghaccuracy．Sotheresearchontheprocesso

4、fpreparationandcharacteristicsofstrongearthquakeswithcrustalmovementdataisaveryimlx>rtantaspectofresearchinearthquakeprediction,TheKunlunmountainearthquakewithM8。lonNovember14，2001isagoodearthquakecasefortheresearchoftherelationshipbetweencrustalmovementandstrongearthquakes．Theres

5、earchworkinthispaperisfocused011followingaspect：(1)Thetheory,inadditiontothenewdevelopmentandapplicationintheresearchofearthscience，especiallyincrustalmovementmonitoring，isbriefed．ThentheproblemsandapproachesinthedataprocessingofGpSmonitoringnetworka∞discussed，(2)11leGPSorbitsared

6、eterminedonly稍mthefiducialstationsofCMONOC．Thentheaccuracyofthedeterminedorbitsandtheinfluenceoftbestationselectionareanalyzed．(3)Theselectionofdatumdefinitionsfordisplacement，suitableforearthquakepredictionisdiscussed．Thenthecrustalmovementandtimeseriesofdisplacementsatstationsof

7、continuousobservation撖CMONOCm曲rained．Thentherelationshipbetwinthevariationsindisplacementsandthesla'ongearthquakesisdiscussed．Inordertoanalyzethevariationcharacteristicofthetimeseriesinsomearl％lsandtheperiodicaleharacteristicofthetimeseriesduringthewholeperiod,thewavelettransforma

8、tionisintroduced．拍econclusionsofthisthesis锄asfollows：(1)TheGPSorbitsaredeterminedonlywiththeobservationfromfi如cialstationsinCMONOC．Comparedwiththepreciseorbit，theaccuracyoftheorbitsdeterminationislessthan0．4m．Aftermanyseriesdataofcombinationgroupselectedfrom25fiducialstationsarepr

9、ocessedforthedeterminationoftheor