基于无源室分的北斗室内定位方案研究

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中图分类号：TN967：TN929.5 文献标志码：A文章编号：1003-3114（2025）06-1230-06

Abstract：Directlycombining BeiDouNavigation Satelite System（BDS）signals withvastnumberof passve DistributionAntenna System（DAS）deploedbytelecommunicatiosoperatorsanladtosatelitepositioingsignalontamiationisses；whileeblding satelitenavigationtransmisionnetworkindorsouldincreaseinvesmentcostandostructiodifulties.Fousingonsolvingsat elite posiiingsialoanatiodoveoingsiategenghallngs，iativtoricalfrmekadste deploymnt planareproposedbasedontheprinciplesof indoorDASandsatelitepositioning.hesolutioninvolvesshiftingthefrequencyofsatelienavigansignalsforransissoviapasiveASsst;consiengarousfctorsuchastintealstcueofthe building，peneatiolsoagetisdngee;teleigsiictetfaltio AnditthoroughlyanalysesanddiscusestedificultiesandtechnicalideasassciatedwithinterferencecoordinationsheThere fore，anestrategfordeployingindorfrequencyshftingBDSsystemhasbeenconstructedtooferinnovativesolutionsandtehnical supportforidorsiongiinihcudesloussiteeleagdplacmntcosdientflosd tralized deployment.

Keywords：BDS; frequency-shift BDS signal; passive DAS;satelitepositioning signal contamination

0 引言

以美国GPS为开创者的4套导航定位系统不仅为地球室外场景提供了精准的定位、导航、授时服务，而且推动了全球多个领域的发展，引领了技术革命与产业升级。（剩余8224字）