多约束条件下平面相控阵系统自适应波束形成技术  

Adaptive Digital Beamforming Technique with Multiple Constraints for Planar Phased Array System

作　　者：龚云[1] GONG Yun(Nanjing Research Institute of Electronics Technology,Nanjing 210013,China)

机构地区：[1]南京电子技术研究所,江苏南京210013

出　　处：《电声技术》2022年第6期128-134,共7页Audio Engineering

摘　　要：面阵是雷达系统的主要形式之一。本文介绍主瓣约束、主副瓣约束和主瓣约束且有规定零点条件下均匀矩形平面阵自适应波束形成算法,改善主副瓣约束条件下副瓣畸变的问题,提出第四种约束即主副瓣同时约束且有规定零点条件下的自适应波束形成算法,并推导该约束条件下的最佳权值表达式。仿真结果表明,不同约束条件下计算得到的权值矢量表达式是有效的,能够满足要求。Planar array radar is one of the most important radar forms in radar system. This paper present adaptive digital beamforming technique with multiple constraints for planar phased array system in the following three conditions, with main lobe constraint only,with main and side lobe constraints only, with main lobe and given nulls constraints. Given an effective method to reduce side lobe in the condition of main and side lobe constraints. The fourth condition of main and side lobe constraints and given nulls constraint based on Adaptive Digital Beam Forming(ADBF) is proposed and the optimal weighted vector in that constraint condition is derived.The simulation results show that the weight vector expression calculated under different constraints is effective and can meet the requirements.

关 键 词：面阵 自适应波束形成 零陷 约束条件 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]