2023,38(4)电子信息对抗技术ElectronicInformationWarfareTechnology中图分类号:TN953.7文献标志码:A文章编号:1674-2230(2023)04-0039-06引用格式:张东,余昊,谢振杰,等.基于干涉仪辅助测量的空中运动目标高度跟踪方法[J].电子信息对抗技术,2023,38(4):39-44.基于干涉仪辅助测量的空中运动目标高度跟踪方法∗张东,余昊,谢振杰,王欣,孟涛(中国电子科技集团公司第二十九研究所,成都610036)摘要:对空中机动目标的三维无源定位,现多采用四站时差定位方法。由于受地形遮挡等条件限制,四站时差定位系统有时无法同时侦收到同一目标信号而退化为三站时差,无法实现高度测量。且由于四个侦察站的高程差限制,即使四站同时侦收到目标信号时也存在高度测量误差较大的问题。针对该问题,设计了一种基于时差定位和多通道相位干涉仪测向相结合的三维无源定位方法。该方法在三站情形下也可实现三维定位,在四站情形下通过统计信息网格(StatisticalInformationGrid,STING)聚类融合四站时差定位高度和干涉仪辅助测量高度,显著减小高度测量误差。关键词:空中目标;三维定位;相位干涉仪;STING聚类DOI:10.3969/j.issn.1674-2230.2023.04.007HeightTrackingMethodofAerialMovingTargetBasedonInterferometerAidedMeasurementZHANGDong,YUHao,XIEZhenjie,WANGXin,MENGTao(SouthwestChinaResearchInstituteofElectronicEquipment,Chengdu610036,China)Abstract:Four-stationtimedifferenceofarrival(TDOA)algorithmiswidelyusedfor3Dpas-sivelocationofairbornetargets.Duetothelimitationofterrainocclusionandotherconditions,thefour-stationTDOApositioningsystemsometimesfailstodetectthesametargetsignalatthesametimeanddegeneratesintothethreestationTDOA,unabletoachievealtitudemeasurement.Duetothelimitationoftheelevationdifferenceofthefourreconnaissancestations,evenifthefourstationsdetectthetargetsignalatthesametime,thereisaproblemoflargeheightmeasure-menterror.AnalgorithmbasedonthecombinationofTDOAandinterferometerdirectionfindingisproposed.3Dpositioninginthecaseofthreestationsisrealized.Infour-stationscenario,theheightmeasurementerrorissignificantlyreducedbyfusingtheheightmeasuredbyTDOAandtheinterferometerbasedonstatisticalinformationgrid(STING)cluster.Keywords:airbornetarget;3Dlocation;interferometer;STINGclust...
