中北大学学报（自然科学版）2017，Vol.38Issue(2)：217-220,236,5.DOI:10.3969/j.issn.1673-3193.2017.02.021
分布式部分校正子阵MIMO雷达角度估计算法
DOA Estimation in Subarray-Based MIMO Radar with Distributed Inter-Subarray Calibration
摘要
Abstract
The problem of direction-of-arrival (DOA) estimation in partially calibrated multi-input multioutput (MIMO) array composed of multiple subarrays was studied by using the rank reduced estimator (RARE).By utilizing a specific structured model of virtual steering vector of the subarray-based MIMO arrays,the proposed method obtains the DOA estimation by using the RARE without the information of intersubarray calibration,realizes the efficient utilization of the array,improves the resolution and location accuracy.To evaluate the performance of the proposed estimator,the corresponding stochastic Cram'er-Rao bound (CRB) was derived.Computer simulations demonstrate the effectiveness and validity of the proposed estimator when the inter-subarray parameters were completely or partly unknown.关键词
角度估计/多输入多输出雷达/子阵/秩亏估计器Key words
direction-of-arrival estimation/multi-input multi-output radar/subarray/rank reduction estimator分类
信息技术与安全科学引用本文复制引用
党婵娟,张炜,胡羽行..分布式部分校正子阵MIMO雷达角度估计算法[J].中北大学学报（自然科学版）,2017,38(2):217-220,236,5.基金项目
山西大同大学校级青年科学研究资助项目(2015Q13) （2015Q13）
国防预研基金资助项目 （）
高动态低信噪比检测技术研究资助项目(W16GY00010) （W16GY00010）
