基于低存储量的相控阵指向精度优化  

Phased Array Pointing Accuracy Optimization Based on Low Storage

作　　者：王琰 赵鹏[1] 刘成 赵永志[1] WANG Yan;ZHAO Peng;LIU Cheng;ZHAO Yongzhi(The 13 th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050000,China)

机构地区：[1]中国电子科技集团公司第十三研究所,河北石家庄050000

出　　处：《电子科技》2025年第5期53-59,共7页Electronic Science and Technology

基　　金：国家自然科学基金(61831016)。

摘　　要：针对高指向精度需求和低存储量需求相矛盾的问题,文中提出了一种基于线性插值的移相器值获取方法,在大步进电扫的存储量前提下进行小步进电扫。计算电扫精度和所需存储量的关系,分析线性插值的可行性,分别对移相器值中的位置数据和角度数据进行不同缩放,使用移相器值误差、方向图误差、波束指向误差3种量化指标来评价所提算法的性能。结果表明,在选取合适的缩放倍数后,波控存储量减少了98%,移相器值误差小于1°,方向图误差小于20 dB,波束指向误差小于0.1°。In view of the contradiction between high pointing accuracy requirement and low storage requirement,a method of obtaining phase shifter value based on linear interpolation is proposed in this study.A small step sweep is performed under the premise of the storage capacity of a large step sweep.The relationship between the sweep accuracy and the required storage capacity is calculated,and the feasibility of linear interpolation is analyzed.The position data and angle data in the phase shifter value are scaled differently,and the performance of the proposed algorithm is evaluated using three quantitative indexes including Phase shifter value error,pattern error and beam pointing error.The results show that the wave control memory is reduced by 98%,the phase shifter error is less than 1°,the pattern error is less than 20 dB,and the beam pointing error is less than 0.1°.

关 键 词：相控阵天线 移相器值 线性插值 指向精度 波束形成 存储量 电扫 方向图 

分 类 号：TN821.8[电子电信—信息与通信工程]