考虑互耦修正的机会阵雷达波束方向图综合优化

发布时间：2018-01-11 05:11

本文关键词：考虑互耦修正的机会阵雷达波束方向图综合优化　出处：《电子与信息学报》2014年03期 　论文类型：期刊论文

【摘要】：机会阵雷达大量天线单元在空间随机分布,波束方向图综合时考虑阵元间的互耦影响十分必要。该文基于子阵思想,提出交叉划分子阵,利用子阵的互阻抗矩阵构建任意阵的互阻抗矩阵,并结合自适应算法实现了互耦情况下的机会阵雷达的波束综合优化。该方法利用矩量法计算子阵的广义互阻抗矩阵,应用最大输出信噪比准则,在方向图区域施加干扰信号自适应地调整阵因子,综合了非均匀偶极子线阵和面阵,结果与FEKO软件仿真结果吻合良好。
[Abstract]:A large number of antenna elements of opportunistic array radar are randomly distributed in space. It is necessary to consider the mutual coupling effect between array elements when synthesizing the beam pattern. Based on the idea of subarray, a cross-partitioning subarray is proposed in this paper. The mutual impedance matrix of any matrix is constructed by using the mutual impedance matrix of the subarray. The adaptive algorithm is used to realize the beam synthesis optimization of the opportunity array radar in the case of mutual coupling. The method uses the moment method to calculate the generalized mutual impedance matrix of the subarray and applies the maximum output signal-to-noise ratio criterion. The interference signal applied in the pattern region adaptively adjusts the matrix factor and synthesizes the nonuniform dipole linear array and the plane array. The results are in good agreement with the simulation results of FEKO software.
【作者单位】：南京航空航天大学电子信息工程学院;南京电子技术研究所;
【基金】：国家自然科学基金(61071164,61271327) 江苏省高校优势学科建设工程项目(PAPD)资助课题
【分类号】：TN957.2
【正文快照】： 1引言机会阵雷达[1-3]是国外学者近年来针对新一代海军隐身驱逐舰DD(X)提出的一种新概念雷达。机会阵雷达以平台隐身性为设计核心,以数字阵列雷达为基础,单元与数字收发组件被任意布置于舰船的各个开放空间。机会阵雷达“机会性”地选择工作单元、工作方式及战术功能等,考虑到

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