gps精密变形监测数据处理方法及其应用研究-水工结构工程专业毕业论文.docx

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Abstract
A research on data processing models and me血ods ofdifrerent scales ofGPS monitorj“works. has been made prehensiVely t上1rough making use of the practjca】observation data of the
big—scale CrustaI Movement Obse“work of China,the medium-scale GPS crustal def。rmation
monito—work of some city,and t|le small-scale GPS d蛐deformation
main contents ofthis dissert砒ion are as follows:
1) A s诅tion orthogonal coordinate system,which is the refcrence coordinate systern for t11e mree—dimension adjustment of observation data of GPs d啪deformation work,has been put mathematical models a11d formulas of the adjustmenl under the coordinate system have been essfully derived.
2) A memod of using clustering analysis in f位zy mathematics to do the testing of relative stabillty of quasi-stable points(or datum marks)has been brought ,a method of quasi-stabIc adjustnlem and a software system researched and explored byⅥsual BAsIc Language 11aVe been
used to process也e Observation data ofGPS d蛐deformation work..
3) A mathematical modeI ofthree·bined adjustment with GPs and other survcying data under s诅tiOn orthogonal coordinate system in defb nTlation monitorjng ne附orks,has been broug】1l fonvard,In this model,a par蛐eterized metllod has been employed to decrease or elhinate vertical denecdon a11d vertical refraction errors.
4) For the long b嬲elines of Crustal Movement work of China,using the GPs saCelIites orbits and stations posjtioning analysis software GAMIT opened up by MIT to do the sin91e day GPS observation data processing,a synthetic solutlon model,whjch is called“t11e synthetjc solution model of baseline Vectors”,has been built up with seVeral sj“gle day baselillc vectors calculated by the GAMIT sofhvare,pute the three dimension movement velocities tlle result can Validate the reliabilily and feasibility ofthe model.
5) The research on tlle concrete processing of the practical experimental observacion dala of some c