基于置信度估计的GPS轨迹拟合方法研究

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中图分类号：TP319 文献标志码：A 文章编号：2095-2945（2025）20-0161-04

Abstract：WiththewidespreadapplicationofGPStechnologyinmodernlife，itisparticularlyimportanttoaccurately estimatetheconfidenceofGPSdataandachievehigh-qualitytrajectoryfiting.Thisresearchproposesamethodthatcombines GPSconfidenceevaluationwithdynamictrajectoryfiting.Trough hierarchical processng，directioncoectionandpolyomial fitingofGPSdatatheacuracyandrobustnessoftrajectoryfitingaresignificantlyimproved.Researchshowsthatthismethod canefectivelyreducepositioningerrorscausedbyvehiclestandstll，signalolusionandmultipathefectsincomplex environments.Inthe experiment，theroot-mean-square error（RMSE）of the fiting curve was reduced by 15% ，while the accuracy of trajectory matching was increased from 91.1% to 93.02% ，reflecting the superiority of this method in terms of accuracyandcalculationeficiency.Thisachievementprovidesstrongsupprtforappicationsinfieldssuchasinteligent transportation，autonomous driving and high-precision map construction.

Keywords：trajectoryprocessing;GPStechnology;confidenceassessment;trajectoryfiting;dynamicalgorithm;intellent transportation; autonomous driving

全球定位系统（GPS）作为现代导航和定位的核心技术，在交通、物流、位置服务等领域发挥着关键作用。（剩余4901字）