一种非迭代的卫星导航PVT解算方法及其应用

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中图分类号：TN967.1 文献标识码：A 文章编号：2096-4706（2026）05-0001-05

A Non-iterative PVT Solution Method and Its Application for Satellite Navigation

GU Yongzhong，DENG Hengyan，WANG Gongwen， ZHENG Kai （Chengdu Spaceon Informationand TechnologyCo.，Ltd.， Chengdu ，China）

Abstract： When thesatelitenavigationreceiversolves thePVT（Position，VelocityandTime），te WeightedLeastSquares methodbasedoniterationisgenerallsed.However，uetoteultipleiteratiosoftismethod，teamountofomputatiois large.Inorder toslvethisproblem，thispaperproposes asolution.Firstlyanon-iterativePsolution methodis proposed，nd animprovednon-iterativePVTsolution methodisproposed tosolvetheinitialvalueofthepositioningresultbyusing thenoniterativemethod.Andthen，itusesthetraditionaliterativesolutionmethodtoperfomaniterativesolution.Finally，tereiver usingDSP+FPGAarchitectureis testedandverifed.Thetestresultsshowthatthesolutionaccuracyoftheproposedmethodis consistent with the traditional method， but the computational load is reduced by more than 50%

Keywords：Weighted Least Squares; non-iterative; PVT solution; satelite navigation; DSP

0 引言

随着BDS、GPS、GLONASS、GALILEO四大全球卫星导航系统的广泛应用，基于卫星导航信号的PVT解算已成为卫星导航定位领域的核心技术。（剩余5770字）