平行因子在被动相干定位系统中的应用  

Application of Parallel Factor to Passive Coherent Location

作　　者：张各各[1] 王俊[1] 李进[1] 郑纪彬[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,西安710071

出　　处：《电子与信息学报》2012年第7期1596-1601,共6页Journal of Electronics & Information Technology

基　　金：教育部创新团队计划(IRT0954)资助课题

摘　　要：针对被动相干定位系统中匹配滤波计算量比较大的问题,该文提出基于平行因子的定位方法直接估计时延和多普勒频偏;为了改善频域盲源分离在大时延背景下时延估计精度不高的问题,建立新的张量接收器,并用联合对角化联合同时估计波束、时延和多普勒频偏。仿真表明,该文方法能获得比较高的估计精度。For the huge computational burden of the matched filter utilized in Passive Coherent Location （PCL） system, this paper proposes a PARAllel FACtor （PARAFAC）-based locating method which estimates directly time delay and Doppler offset. To improve the poor estimation accuracy of frequency blind source separation in large delay spread, a new tensor receiver is built to process simultaneously beamforming, time delay and Doppler offset by exploiting the simultaneous diagonalization. The experiments show that the proposed method can gain high estimation accuracy.

关 键 词：被动雷达 正交频分复用信号-单频网 平行因子 张量模型 波束 

分 类 号：TN958[电子电信—信号与信息处理]