基于遗传算法的低轨卫星点波束规划方法  

Spot-beam Layout Method of Low Earth Orbit Based on Genetic Algorithm

作　　者：石力[1] 熊钍林 李杨[1] 周彬[1] 王学华 姚明明 SHI Li;XIONG Tulin;LI Yang;ZHOU Bin;WANG Xuehua;YAO Mingming(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China;Science and Technology on Electronic Information Control Laboratory,Chengdu 610036,China)

机构地区：[1]中国电子科技集团公司第二十九研究所,成都610036 [2]电子信息控制重点实验室,成都610036

出　　处：《电子信息对抗技术》2023年第2期51-56,共6页Electronic Information Warfare Technology

摘　　要：针对低轨卫星“等通量”覆盖要求,提出了一种点波束规划方法。该方法结合遗传算法和逐层规划的思路,得出环形小区各层点波束最优的数目和大小,同时可以得到满足任意空间区域方向性覆盖要求的最优分层布局。以1000 km高度的低轨卫星为例进行分析,同典型的点波束规划方法相比,与理想“等通量”的误差由6 dB减小为0.2 dB,仿真结果表明该方法具有更高的满意度。According to the requirements of isoflux coverage, a spot-beam layout method for low earth orbit(LEO) satellite is proposed.This method based on a genetic algorithm and hierarchical planning is developed to optimize the number and size of cells for a circularly grid.Optimal cell layouts satisfying arbitrary field and directivity requirements are obtained by this method.Analysis of the optimized method for a LEO satellite with an orbital altitude of 1000 km is given.The error with ideal isoflux changes from 6 dB to 0.2 dB and higher satisfaction of the proposed method is proved compared with the typical methods.

关 键 词：点波束 等通量覆盖 低轨卫星 遗传算法 

分 类 号：TN927.2[电子电信—通信与信息系统]