基于灰狼算法的低旁瓣和宽零点波束综合  

Low-sidelobe and Wide-nulling Beampattern Synthesis Based on GWO

作　　者：韦祎希 胡丹 徐艳红 王东云 WEI Yixi;HU Dan;XU Yanhong;WANG Dongyun(Xi'an Key Laboratory of Network Convergence Communication,College of Communication and Information Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)

机构地区：[1]西安科技大学通信与信息工程学院西安市网络融合通信重点实验室,陕西西安710054

出　　处：《无线电工程》2025年第1期146-154,共9页Radio Engineering

基　　金：国家自然科学基金面上项目(62271386)。

摘　　要：实际工程应用中,阵列天线需要根据不同场景和不同任务形成满足需求的波束。目前,基于智能优化算法的波束综合技术已成为解决阵列综合问题的重要手段之一。针对传统优化算法优化过程较慢、收敛精度较低的问题,将收敛速度快、参数调节简单的灰狼(Grey Wolf Optimizer,GWO)算法引入阵列波束综合问题中。具体工作主要包括:设计低旁瓣、宽零点的阵列期望波束,采用GWO算法不断迭代阵元激励的幅度,使产生的波束不断逼近期望波束,当达到最大迭代次数时优化结束,将得到的优化矢量代入阵列构型中,产生低旁瓣、宽零点波束图。仿真结果表明,基于GWO算法的低旁瓣、宽零点方向图综合效果显著。In practical engineering applications,the array antenna is required to form a beampattern that can satisfy the demands of different tasks and scenarios.Currently,the intelligent optimization algorithm-based beampattern synthesis technology has become one of the important approaches to solve array synthesis problems.To alleviate the disadvantages of slow convergence velocity and low convergence accuracy existing in conventional optimization algorithms,the Grey Wolf Optimizer(GWO)algorithm,featured with fast convergence and simple parameter adjustment,is introduced into the array beampattern synthesis.The specific work mainly involves three procedures:design the desired array beampattern with low sidelobe and wide-nulling;utilize GWO algorithm to iteratively optimize the excitation amplitudes of the array elements to make the generated beampattern approach its desired counterpart;and optimization ends when the maximum number of iterations is obtained.Then substituting the obtained weight vector into the array configuration generates a beampattern with approximately desired low sidelobe and wide-nulling.Simulation results show the beampattern of low sidelobe and wide-nulling based on GWO algorithm has achieved remarkable and comprehensive effect.

关 键 词：阵列天线 灰狼算法 低旁瓣 宽零点 

分 类 号：TN820.1[电子电信—信息与通信工程]