有源相控阵天线子阵划分对旁瓣匿影性能影响  

Influence of subarray partition of active phased array antenna on side-lobe blanking performance

作　　者：张广磊 陈峰峰 单姣龙 莫修辞 ZHANG Guanglei;CHEN Fengfeng;SHAN Jiaolong;MO Xiuci(Leihua Electronic Technology Research Institute,AVIC,Wuxi Jiangsu 214063,China)

机构地区：[1]中国航空工业集团公司雷华电子技术研究所,江苏无锡214063

出　　处：《太赫兹科学与电子信息学报》2023年第9期1117-1123,1134,共8页Journal of Terahertz Science and Electronic Information Technology

基　　金：航空科学基金资助项目(20172007002)。

摘　　要：由于缺少旁瓣匿影性能评估的统一标准,子阵划分对旁瓣匿影性能影响研究较少。对此,本文提出旁瓣匿影性能评估参量——旁瓣匿影率,其本质是计算满足旁瓣匿影要求区域占整个方向图区域的比例。其中保护通道直接利用子阵级数据通过加权非相参积累方式构建,可实现保护通道的自适应干扰抑制,支撑干扰条件下的自适应旁瓣匿影。实验表明,子阵划分非均匀性越强,子阵数越多,扫描角越小,有源相控阵天线的旁瓣匿影率越高,旁瓣匿影性能越好。Due to lack of a unified standard for performance evaluation of side-lobe blanking,there are few studies on the effect of subarray partition on the side-lobe blanking performance.The performance evaluation parameter of side-lobe blanking—side-lobe blanking ratio is put forward,whose essence is to calculate the proportion of the area satisfying the requirement of the side-lobe blanking in the whole pattern region.The guard channel is constructed by weighted non-phase-coherent accumulation of subarray data directly,which can realize adaptive interference suppression and support the adaptive side-lobe blanking under the interference condition.The simulation results show that the stronger the non-uniformity of subarray partition,the larger the number of the subarray;the smaller the scanning angle,the higher the side-lobe blanking ratio and the better the side-lobe blanking performance of the active phased array antenna.

关 键 词：子阵划分 保护通道 旁瓣匿影率 方向图 

分 类 号：TN911.7[电子电信—通信与信息系统]