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弹箭与制导学报 >

2026 , Vol. 46 >Issue 2: 145 - 151

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2026.02.003

学术文章

一种唯相位法的不对称副瓣优化方法

  • 张闻涛 1, 2 ,
  • 勾韦磊 , 1, 2, *
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  • 1 中国空空导弹研究院, 河南 洛阳 471009
  • 2 空基信息感知与融合全国重点实验室, 河南 洛阳 471009
* 。

收稿日期: 2026-01-13

  网络出版日期: 2026-05-09

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An Asymmetric Sidelobe Optimization Approach with Phase-only Weighting

  • ZHANG Wentao 1, 2 ,
  • GOU Weilei , 1, 2, *
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  • 1 China Airborne Missile Academy, Luoyang 471009,Henan, China
  • 2 National Key Laboratory of Air-based Information Perception and Fusion, Luoyang 471009,Henan, China

Received date: 2026-01-13

  Online published: 2026-05-09

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摘要

利用MATLAB优化平台,提出了一种基于fmincon函数的低副瓣阵列方向图优化设计方法。该方法通过构建以目标区域副瓣电平为优化目标的混合惩罚代价函数,并辅以主瓣增益波动控制的非线性约束条件,将阵列波束优化问题转化为连续变量的非线性约束优化问题。计算结果表明:在保证主瓣增益波动<0.3dB的前提下,所设计阵列可在指定空域范围内实现15~20dB的副瓣电平压制,且优化过程具有快速收敛性和良好的稳定性,该方法能够兼顾优化精度与计算效率,为需要满足主瓣保形和特定区域副瓣抑制的天线阵列设计提供了一种高性能、高可靠性的解决方案,具有较好的工程实用价值。

关键词： 方向图综合; 不对称副瓣; 相位加权; fmincon函数; 约束优化

本文引用格式

张闻涛 , 勾韦磊 . 一种唯相位法的不对称副瓣优化方法[J]. 弹箭与制导学报, 2026 , 46(2) : 145 -151 . DOI: 10.15892/j.cnki.djzdxb.2026.02.003

Abstract

A low-sidelobe array pattern design method utilizing fmincon is proposed based on MATLAB.The array beam optimization problem is transformed into a nonlinear constrained optimization problem with continuous variables by constructing a hybrid penalty cost function with the objective of minimizing the sidelobe level in the target region and utilizing the nonlinear constraints for controlling the gain fluctuation of mainlobe.Numerical results demonstrate that The designed array can achieve a suppression of 15-20dB sidelobe level within specified spatial regions while ensuring that the gain fluctuation of mainlobe is less than 0.3dB.And the optimization process exhibits rapid convergence and excellent stability.The proposed method gives consideration to optimization precision and computational efficiency.It provides a high-performance and high-reliability solution for antenna array designs requiring the mainlobe shaping and sidelobe suppression in specific region,has significant engineering practical value.

Key words： radiation pattern synthesis; asymmetric sidelobe; phase-only weighting; fmincon; constrained optimization

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