一种基于粒子群算法的双极化阵列优化设计

刘伟 *11, 刘 浩2, 蒋 跃红2
1、南京电子技术研究所贺青南京电子技术研究所
2、南京电子技术研究所

摘要


双极化阵列在目标识别、抗干扰等方面具有广泛的技术应用,分时双极化体制可在保留极化性能的同时大
幅降低系统成本和复杂度。然而阵列设计时,极化交替排列方向图栅瓣影响严重,半阵水平半阵垂直排列则会牺牲
原孔径的角度分辨力得益。本文提出了一种基于粒子群算法的双极化阵列优化设计方法,通过设计排列编码策略,
并基于水平极化阵列方向图和垂直极化阵列方向图的峰值旁瓣比、阵列均衡性以及主瓣宽度等约束因子构建适应度
函数,对分时双极化阵列排布进行全局优化。通过仿真验证,该方法收敛速度快,双极化阵列方向图优化效果好,
具有较高的工程应用价值。

关键词


双极化阵列;粒子群算法;峰值旁瓣比

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