基于动态规划和分治算法减小相控阵辐射“凹坑”  

REDUCTION OF RADIATION"PITS"OF PHASED ARRAY BASED ON DYNAMIC PROGRAMMING AND DIVIDE-AND-CONQUER ALGORITHM

作　　者：贺祖鹏 吴雨航 邓伟 He Zupeng;Wu Yuhang;Deng Wei(College of Information Science and Technology,Donghua University,Shanghai 201620,China;College of Information Engineering,Shanghai Maritime University,Shanghai 201306,China;School of Arts and Sciences,Shanghai Maritime University Mathematical Modeling Laboratory,Shanghai 201306,China)

机构地区：[1]东华大学信息科学与技术学院,上海201620 [2]上海海事大学信息工程学院,上海201306 [3]上海海事大学文理学院数学建模实验室,上海201306

出　　处：《计算机应用与软件》2023年第11期144-148,155,共6页Computer Applications and Software

摘　　要：为使以特定功率覆盖给定水平角和俯仰角情况下各波束在该区域内的功率极差最小,计算出各组合成波束的天线阵移相器配置。用动态规划方法找出使天线对站点影响最小的一组移相器配置;用分治算法改进并构建接近给定功率信号幅度的模型;根据半功率角来确定辐射范围,根据站点的天线覆盖数确定一个波束参与计算的天线单元,通过改进的分治算法求出每个波束的凹坑,并找出满足要求的一组相控阵天线的移相器配置。实例分析表明,该算法能有效解决在给定功率覆盖给定水平角和俯仰角情况下有效减小相控阵辐射“凹坑”。In the case of covering given horizontal angle and pitch angle with specified power,the configuration of antenna array phase shifter for each composite beam will be calculated to minimize the power range of each beam in the region.The dynamic programming method was used to find out the phase shifter configuration which could minimize the influence of antenna on the site,then divide-and-conquer algorithm was used to improve and build a model that was close to the given power signal amplitude.The radiation range was determined according to the half-power angle.According to the antenna coverage number of the site to determine a beam to participate in the calculation of the antenna element.The improved divide-and-conquer algorithm was used to find out the pit of each beam and find out the phase shifter configuration of a set of phased array antennas.The example shows that the algorithm can effectively reduce the radiation"pit"of phased array under the condition of given power coverage and given level angle and pitch angle.

关 键 词：动态规划 分治算法 相控阵天线 移相器配置 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]