資源描述：
《Research of Target Localization Algorithms Based on Wireless Sensor Network》由會員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、萬方數(shù)據(jù)傳感器與儀器儀表<微計(jì)算機(jī)信息>(測控自動化)2009年第25卷第2-1期文蕈編號：1008-0570(2009)02一l-014枷3ResearchofTargetLocalizationAlgorithmsBasedonWirelessSensorNetwork(AirForceRadarAcademy)CHENXiang—pingFANGLiAbstract：WirelessSensorNetworkisanoveltechnologyacrossmulti—subject．Ithasbroadapplicationinsurroundingsmeas
2、ure，re—motesensing，targetlocalizationandsoon．Thepaperanalyzesseveralmaintargetlocalizationalgorithmsatpresent，proposestheimprovedmeasureoflocalizationalgorithmbasedonseeingandhearingmeasure，whichishelpfulforfurtherresearch．Keywords：WirelessSensorNetwork；targetlocalization；Algorithm1Int
3、roductionWireless8enornetworkisapopularnetworktechnologytheseyears．Itismadeupofnlas8littlevolumeandlowcostsensornodes，whichintegratesensor，datacollection，handlingandwire-lesscommunicationunit．Itisanintelligentsystemofcompletingmissionintermsofenvironmentautomatically．Eachnodecande-teet
4、environmentaroundindependently，thencooperateseachothertorealizecomplicatefunctions，suchintrusiondetection，targettracingandlocalization，environmentdetectionandremotesensing．WirelesssenornetworkCallbeusedingeophysics(earthquakede-tectionforexample)，militarysystem，emergencyandrescuing，tra
5、fficdetection，biologyresearchetc，thesefieldsusuallylackofsupportofconventionalnetworkinfrastructure0nternet，GPSandmobilecommunicationnetworketc)．Targetlocalizationmeansthatestimatinglocationofdetectedtargetinwirelesssensornetworkatsometime．Accordingtothedifferenceofsignaldetectionunit，
6、atpresenttargetlocalizational-gorithmsmainlyhavelocalizationalgorithmbasedonTOAestima-tion，localizationalgorithmbasedonTDOAestimationandlocal-izationalgorithmbasedonDOAestimationetc．Whilethesealgo-rithmshavesomeshortcomingsandneedtobefurtherresearchedandimproved．Thispaperanalyzessevera
7、lordinaryalgorithms，andimproveslocalizationalgorithmbasedonseeingandhearingesti-mation．2Analyseoflocalizationalgorithm"2．1localizationalgorithmbasedonTOAestimationLocalizationalgorithmbasedonTOA(timeofarrival，TOA)estimationmainlyhascirclelocalizationandgloballocalization．Figure1shows
