第48卷总第524期基于圆形可重构智能超表面阵列的单基站定位方法夏得校,史琰,李龙(西安电子科技大学电子工程学院,陕西西安710071)【摘要】无线定位技术在物联网时代至关重要,在室外开阔场景下,GPS可以提供米级精度的定位;而在室内等特殊应用场景,其精确的位置信息则依赖于额外部署的基站来提供。通常而言,一个终端设备的位置信息至少需要3个定位基站同时工作,并通过几何解算的方式来提供。近些年,随着RIS的发展,其灵活性为单基站的高精度定位提供了新思路。基于RIS的单基站定位技术,通过同时估计目标方位和目标距离,来提供定位终端的位置信息。该系统具备低复杂度、高精度、和低成本的特点,有望在室内定位、自动驾驶、工业互联等领域发挥重要作用。【关键词】RIS;单基站定位;室内定位doi:10.3969/j.issn.1006-1010.20240225-0001中图分类号:TN92文献标志码:A文章编号:1006-1010(2024)04-0035-06引用格式:夏得校,史,李龙.基于圆形可重构智能超表面阵列的单基站定位方法[J].移动通信,2024,48(4):35-40.XIADexiao,SHIYan,LILong.SingleBaseStationPositioningUsingCircularReconfigurableIntelligentSurfaceArray[JJ.MobileCommunications,2024,48(4):35-40.SingleBaseStationPositioningUsingCircularReconfigurableIntelligentSurfaceArray[Abstract]WirelesslocalizationtechnologyiscrucialintheeraoftheInternetofThings(loT).Inoutdooropenscenarios,GPScanprovidemeter-levelprecisionpositioning.However,insomespecialapplicationscenarios,suchasindoorcase,theaccuratelocationinformationreliesonadditionaldeployedbasestations.Typically,thelocationinformationofadevicerequiresatleastthreepositioningbasestationstooperatesimultaneously,whichisprovidedthroughgeometriccalculation.Inrecentyears,withthedevelopmentofreconfigurableintelligentsurfaces(RIS),theirflexibilityhasprovidednewideasforhigh-precisionpositioningbasedonsinglebasestation.ThesinglebasestationpositioningtechnologybasedonRISprovidesthelocationinformationofthepositioningterminalbysimultaneouslyestimatingthetargetazimuthandtargetdistance.Thissystemhasthecharacteristicsoflowcomplexity,highaccuracy,andlowcost,makingitpromisingforindoorpositioning,autonomousdriving,industrialInternetconnectivity,and...