文档介绍：一种基于高阶累积量的近场源四维参数联合估计算法梁军利 1,2,冀邦杰 1,2,赵?峰 3,张军英 3 (,陕西西安710075;,陕西西安710075; ,陕西西安710071) ??摘?要:?本文提出了一种新的多个近场窄带信源距离、,接着结合这些矩阵的结构特点构造3个新的矩阵,,本文给出的方法有效提高了阵列孔径利用率,. 关键词:?阵列信号处理;近场源;定位;二维到达角;高阶累积量中图分类号:?TN911?23???文献标识码:?A???文章编号:?0372?2112(2007)09?1734?05 Four?DimensionalParameterEstimationofNear?Field SourceUsingHigher?OrderCumulant LIANGJun?li 1,2,JIBang?jie 1,2,ZHAOFeng 3,ZHANGJun?ying 3 (1?NationalKeyLaboratoryforUnderwaterInformationProcessandControl,Xi?an,Shaanxi710075,China; thResearchInstitute,ChinaShipbuildingIndustryCorporation,Xi?an,Shaanxi710075,China; ,XidianUniversity,Xi?an,Shaanxi710071,China) Abstract:?Weproposeanoveljointestimationalgorithmforrange,frequency,andtwo?dimensional(2?D)direction?of?ar? rival(DOA)?ordercu? mulantsoftheproperlychosensensoroutputs,andformsthreenewonesusingthefourmatrices,thenestimatesthesourceparame? tersfromthenewones?,theproposed approachefficientlyusesthearrayaperture,,thesimulationresultsarepresentedtovali? datetheperformanceoftheproposedmethod. Keywords:?arraysig