蜂窝网无线定位技术的分析和研究

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1、合肥工业大学硕士学位论文蜂窝网无线定位技术的分析和研究姓名：陈朝申请学位级别：硕士专业：电路与系统指导教师：昂志敏20071201TheanalysisandresearchofwirelesslocationtechnologybasedoncellularnetworkABSTRACTWiththeglobalmobilecommunicationtechnologyrapiddevelopmentofmobilebusinessandtheincreasingdemandofpeople，thev

2、alue-addedserviceshavecausedwidespreadconcerninsociety,andlocation—basedservices，value．addedbusinessisthefoCUSofattention．Becauseofthelocation．basedservicessystem，peoplecandeterminetheirownpositionatanytime，toachievevehiclenavigation，buildintelligenttran

3、sportationsystems，andevencanbeextendedtolifeinareassuchasadvisoryservices．Atpresent，mobilecommunicationtechnologyhasabroadmarketandtheenormouseconomicbenefits，thecellularnetworkbasedonwirelesslocationtechnologyandmobilecommunicationtechnologiesareclosely

4、related，SOthedevelopmentofwirelesslocationtechnologyhasastrongpracticalsignificance．Atpresent，thefocusofresearchconcernsuponthepositioningtechnologybysignalintensitypositioning，positioningtechnologybytimeofarrival，aswellaslocationtechnologybytimedifferen

5、ceofarrival．TDOAlocationbasedoncellularwirelesscommunicationsystemisusedbymostofthemajorpositioningtechnology,whichusestheexistingcellularnetworkequipmenttoachieveprecisepositioning，mobilestationwithouttheneedforhardwareandsoftwareonanotherrevision．Inthe

6、cellularwirelesslocationofthestudy，therearemanyproblemstobesolved．Oneofthemainproblemswashowtoimprovepositioningaccuracy．Thisthesisfirstlysummarizedthebasicprinciplesofwirelesslocationtechnologybasedonthecellularnetworksthenexplainedthefactorswhichimpact

7、ofcellularnetworkspositioningaccuracy,andthengivedtheevaluationindexofthepositioningaccuracy．Asawirelessnetworkenvironmentobjectiveexistenceofnon--line--of-sight(NLOS)error,adoptedtraditionalmannersofwirelesslocationwillcauseagreatpositioningerror．Afteri

8、n—depthstudyofwirelesslocationandthetypesoftheclassicalalgorithmsofreducingNLOS，thenthepaperproposedalocationbasedontheoriginalestimatedvalueofthestatisticalcharacteristicsofusingBayesiancriteriaforintegrationwithTOAandTDO