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1、天津大學(xué)碩士學(xué)位論文無線傳感器網(wǎng)絡(luò)節(jié)點(diǎn)自身定位算法的研究姓名:郭婷婷申請學(xué)位級別:碩士專業(yè):計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師:孟昭鵬20061201ABSTRACTRapidadvancesinmicro-electronictechnology,embeddedsystemandwirelesscommunicationtechnologyhaveenabledtodeveloplowcostwirelessSensornetwork(WSN),whereeachsensornodeindividuallysensesthee
2、nvironmentbutcollaborativelyachievescomplexinformationgatheringanddisseminationtasks.Wirelesssensornetworkisapromisingtechniqueformanyapplications,such嬲targettracking,intrusiondetection,wildlifehabitatmonitoringandreal-timetrafficmonitoring.ThelocationofnodesinW
3、SNplaysanimportantroleinthemostapplicationfields.TheinformationthatiscollectedbythesensornodesmakesSenseonlywhenitiscombinedwiththelocationinformationofthesensornodes.Inaddition,knowingtherelativelocationsofS睨ISOI'Sallowsuseoflocation-baSedaddressingandroutingpr
4、otocols.Therefore,positioningtechnology.whichdrawsmoreattentionbecomesoneofthekeytechnologiesinwirelesssensornetworksandhaSbeenwidelystudied.TheresearchofthisthesisisbasedontheanalysisofagreatdealofrecenttechnicalreportsandresearchresultsonWSN.Centroidalgorithm,
5、TDOArangingmethodandtheapplicationofpositioningtechnologyonrobotfootballprogramaredescribed.InCentroidalgorithm,hi曲densityofbeaconnodesisrequiredandtheeffectbeaconnodeshaveontheunknownnodesisnotreflected.Inthispaper,anoveldistributedpositioningalgorithm,referred
6、to硒TDOA·Centroidalgorithm(TCA),ispresentedandsimulated.DistancebetweentwonodesiscomputedthroughTDOArangingmethod.Theinfluencefactorwhichiscomputedaccordingtothedistancebetweenbeaconnodeandunknownnodeisusedtomeasurethepositionofunknownnode.Moreover,theiterativeap
7、proachisutilizedtoimprovethedensityofanchornodes.Localizednodestransfertobeaconnodesandhelpotherunknownnodes.TheresultsshowthatithasbetterpositioningaccuracythanCentroidalgorithm,especiallywhendensityofbeaconnodesiSlOW.KEYWORDS-Wirelesssensornetworks,Self-Locali
8、zationalgorithm,position獨(dú)創(chuàng)性聲明本人聲明所呈交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作和取得的研究成果,除了文中特別加以標(biāo)注和致謝之處外,論文中不包含其他人已經(jīng)發(fā)表或撰寫過的研究成果,也不包含為獲得叁疊盤堂或其他教育機(jī)構(gòu)的學(xué)位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻(xiàn)均已在論文中作了