基于交替迭代的深空天线阵布局优化算法  

Optimizing Algorithm for Deep Space Antenna Array Configuration Based on Alternate Iteration

作　　者：夏双志[1] 徐秀成[2] 郭肃丽[1] 耿虎军[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,石家庄050081 [2]西安卫星测控中心佳木斯测控站,佳木斯154003

出　　处：《载人航天》2015年第5期516-521,共6页Manned Spaceflight

基　　金：总装备部十二五预研项目(E1206121)

摘　　要：为了提高深空大规模天线阵布局优化的效率,提出了一种基于交替迭代的深空天线阵布局优化算法。提出的天线阵布局优化算法首先利用目标函数的对称性质降低计算复杂度,接着交替迭代地对天线阵各天线单元位置进行优化,在交替迭代优化过程中随机地选取待优化的天线序号,各天线单元位置的移动总是使得在当前尺度因子情况下天线阵合成波束方向图最大旁瓣最小,且在各天线单元位置的移动中加入与当前尺度因子成比例的随机扰动,使得提出的天线阵布局优化算法能够较快地收敛到较优的天线阵布局结果。计算机仿真实验表明提出的基于交替迭代的深空天线阵布局优化算法能够较快地收敛到较优的结果。In order to improve the efficiency of optimizing the configuration of deep space antenna array,an optimizing procedure based on alternate iteration was proposed. Firstly,the symmetry of the optimization function was utilized in the process of optimization to reduce the computational complexity. Secondly,the positions of antenna elements were optimized in the form of alternate iteration for the proposed optimization procedure where the antenna to be optimized was randomly selected and the final movement of each antenna resulted in the minimization of the maximal sidelobe of the beamforming pattern of the antenna array in the case of the current scale factor with random movement.The computer simulation shows that the proposed optimization procedure can converge toward good result at quick speed.

关 键 词：深空测控通信 组阵 布局 交替迭代 

分 类 号：V556[航空宇航科学与技术—人机与环境工程]