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1、ResearchofTargetLocalizationAlgorithmsBasedonWirelessSensorNetworkCHENXiang-ping,FANGLi(DepartmentofinformationandCommandAutomation,AirForceRadarAcademy,WuhanHubei430019,China)Abstract：WirelessSensorNetworkisanoveltechnologyacrossmulti-subject．Ithasbroadapplicationi
2、nsurroundingsmeasure,remotesensing,targetlocalizationandsoon.Thepaperanalyzesseveralmaintargetlocalizationalgorithmsatpresent,proposestheimprovedmeasureoflocalizationalgorithmbasedonseeingandhearingmeasure,whichishelpfulforfurtherresearch.Keywords:WirelessSensorNetw
3、ork;targetlocalization;Algorithm基于无线传感器网络的目标定位算法研究陈湘平,房莉（空军雷达学院信息与指挥自动化系，湖北武汉430019）摘要：无线传感器网络是一个多学科交叉的新兴前沿技术研究领域。它在环境检测、遥感、目标定位等领域具有广泛的应用。本文对目前几种主要的目标定位算法进行了分析，并对基于视听测量的定位算法提出了改进措施，为进一步的研究奠定基础。关键词：无线传感器网络;目标定位;算法中图分类号：TP393文献标识码:：A1Introduction[1]Wirelesssenornetwo
4、rkisapopularnetworktechnologytheseyears.Itismadeupofmasslittlevolumeandlowcostsensornodes,whichintegratesensor,datacollection,handlingandwirelesscommunicationunit.Itisanintelligentsystemofcompletingmissionintermsofenvironmentautomatically.Eachnodecandetectenvironmen
5、taroundindependently,thencooperateseachothertorealizecomplicatefunctions,suchintrusiondetection,targettracingandlocalization,environmentdetectionandremotesensing.Wirelesssenornetworkcanbeusedingeophysics(earthquakedetectionforexample),militarysystem,emergencyandresc
6、uing,trafficdetection,biologyresearchetc,thesefieldsusuallylackofsupportofconventionalnetworkinfrastructure(Internet,GPSandmobilecommunicationnetworketc).Targetlocalizationmeansthatestimatinglocationofdetectedtargetinwirelesssensornetworkatsometime.Accordingtothedif
7、ferenceofsignaldetectionunit,atpresenttargetlocalizationalgorithmsmainlyhavelocalizationalgorithmbasedonTOAestimation,localizationalgorithmbasedonTDOAestimationandlocalizationalgorithmbasedonDOAestimationetc.Whilethesealgorithmshavesomeshortcomingsandneedtobefurther
8、researchedandimproved.Thispaperanalyzesseveralordinaryalgorithms,andimproveslocalizationalgorithmbasedonseeingandhearingestimation.2Analys
