交叉极化及副瓣约束的任意阵列最优方向性综合

发布时间：2018-03-29 00:18

本文选题：矢量方向图综合　切入点：主极化方向性系数　出处：《电子学报》2017年03期

【摘要】：本文根据给定的期望极化方向,定义了扫描波束的期望主极化和交叉极化方向,并进一步给出了主极化方向性系数的定义,它可以更为准确的表征天线集中辐射主极化分量的程度.在没有副瓣约束和交叉极化约束的条件下,给出了任意阵列主极化方向性系数最优解的解析表达式.并且,在含副瓣约束、零陷约束以及交叉极化约束的条件下,我们发展了一种基于凸优化的高效数值综合方法,实现多约束条件下的主极化方向性系数的优化.数值阵列综合结果表明了本文所提出的最优主极化方向性系数解析解的正确性,以及这种可以综合考虑副瓣约束、零陷约束和交叉极化约束的数值方向性优化方法的有效性.
[Abstract]:In this paper, the desired principal polarization and cross polarization direction of the scanning beam are defined according to the given desired polarization direction, and the definition of the principal polarization directivity coefficient is further given. It can more accurately characterize the extent of the radiation principal polarization component in the antenna concentration. Under the condition of no sidelobe constraint and cross polarization constraint, the analytical expression of the optimal solution of the principal polarization directivity coefficient of arbitrary array is given. Under the condition of sidelobe constraint, zero trapping constraint and cross polarization constraint, we develop an efficient numerical synthesis method based on convex optimization. The numerical array synthesis results show that the analytical solution of the optimal principal polarization directivity coefficient proposed in this paper is correct, and the sidelobe constraint can be considered comprehensively. The effectiveness of numerical directional optimization method with zero trapping constraint and cross polarization constraint.
【作者单位】：厦门大学电子科学系;杜克大学电气与计算机工程系;电子科技大学电子工程学院;
【基金】：国家自然科学基金(No.61301009,No.41390453,No.61231001)
【分类号】：TN820

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