第45卷第2期国防科技大学学报Vol.45No.22023年4月JOURNALOFNATIONALUNIVERSITYOFDEFENSETECHNOLOGYApr.2023doi:10.11887/j.cn.202302012http://journal.nudt.edu.cn基于改进整型遗传算法的稀疏矩形平面阵列优化*国强,王亚妮,袁鼎,戚连刚(哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001)摘要:为了降低固定稀疏率、固定孔径的稀疏矩形阵列的峰值旁瓣电平,提出一种改进整型遗传算法。该算法在整型遗传算法的基础上,提出了等间隔采样的交叉策略、多点变异策略以及优良基因重组的策略。采取等间隔采样的基因交叉方式,可以有效发挥整型编码的优势,从而提高算法的运行效率;为了提高种群的多样性,防止算法陷入局部最优,采用了多点变异策略;采用优良基因重组技术,加快了算法的收敛速度。仿真结果表明,相比传统的二进制和实数编码,整型编码更为直接高效;与用于稀疏矩形阵列优化的相关算法相比,本文所提算法获得了更优的旁瓣电平,证实了算法的有效性和优越性。关键词:矩形平面阵列;峰值旁瓣电平;整型遗传算法;稀疏阵列优化中图分类号:TN95文献标志码:A文章编号:1001-2486(2023)02-105-07OptimizationofsparserectangularplanararrayusingmodifiedintegergeneticalgorithmGUOQiang,WANGYani,YUANDing,QILian'gang(CollegeofInformationandCommunicationEngineering,HarbinEngineeringUniversity,Harbin150001,China)Abstract:Inordertoreducethepeaksidelobelevelofsparserectangulararraywithfixedsparseratioandfixedaperture,amodifiedintegergeneticalgorithmwasproposed.Onthebasisoftheintegergeneticalgorithm,thecrossoverstrategyofequalintervalsampling,multi-pointmutationstrategyandexcellentgenerecombinationstrategywereproposed.Thecrossoverstrategyofequalintervalsamplingcaneffectivelyexerttheadvantagesofintegercoding,whichimprovestheoperationefficiencyofthealgorithm.Inordertoimprovethediversityofthepopulationandavoidfallingintothelocaloptimum,themulti-pointmutationstrategywasadopted.Theexcellentgenerecombinationtechnologywasusedtoacceleratetheconvergencespeedofthealgorithm.Simulationresultsshowthat,comparedwiththetraditionalbinaryandrealcoding,theintegercodingismoredirectandefficient;comparedwiththerelatedalgorithmsforsparserectangula...