基于改进蚁群算法的平面稀疏阵优化方法及性能分析  

Optimization Method and Performance Analysis of Planar Sparse Arrays Based on Improved Ant Colony Algorithm

作　　者：王仁茂 徐磊 WANG Renmao;XU Lei(Military Representative Office of Shanghai Burear of Naval Armament Department in Yangzhou,Yangzhou 225001,China;The Eighth Research Academy of CSSC,Yangzhou 225101,China)

机构地区：[1]海装上海局驻扬州地区军事代表室,江苏扬州225001 [2]中国船舶集团有限公司第八研究院,江苏扬州225101

出　　处：《舰船电子对抗》2025年第2期86-92,101,共8页Shipboard Electronic Countermeasure

摘　　要：稀疏阵列是现代相控阵雷达保证性能的同时降低成本的有效方法,阐述了改进蚁群算法的基本原理,构建二维平面相控阵模型,给出基于改进蚁群算法的二维平面阵优化稀疏的方法。利用该方法对和波束比幅测角、和差波束比幅测角2种体制阵面进行优化。通过计算机仿真,与半波长等间隔布阵、直接稀疏布阵和随机稀疏布阵进行天线方向图对比分析,结果显示优化后的稀疏阵,可降低副瓣电平、抑制栅瓣效应。Using sparse arrays is an effective method for modern phased array radars to reduce costs while maintaining performance.This paper expounds the basic principles of an improved ant colony algorithm,constructs a two-dimensional planar phased array model,and proposes a method for optimizing the sparse layout of a two-dimensional planar array based on the improved ant colony algorithm.Using this method,the optimization is performed for two types of array configurations:sum beam amplitude-comparison angle measurement and sum-difference beam amplitude-comparison angle measurement.Through computer simulation,the antenna pattern is compared with that of half-wavelength equispaced array,direct sparse array and random sparse array.The results demonstrate that the sidelobe level can be reduced and grating lobe intensity can be suppressed by using the optimized sparse array.

关 键 词：改进蚁群算法 二维平面稀疏阵 低副瓣 栅瓣效应 

分 类 号：TN821[电子电信—信息与通信工程]