基于改进遗传算法的非规则共形阵的研究  

Research on irregular conformal array using improved genetic algorithm

作　　者：张玉洁[1] 龚书喜[1] 王文涛[1] 凌劲[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071

出　　处：《电波科学学报》2010年第4期689-695,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助(60801042)

摘　　要：设计了一个新型的8元E形非规则曲面微带共形阵列,并运用改进的自适应混合遗传算法对其辐射方向图进行了优化设计。该算法将模拟退火法和禁忌算法引入到传统遗传算法中,并采用自适应遗传算子来提高算法效率和优化质量。算法中还采用了仿真软件与方向图重构技术相结合来计算阵列单元的三维方向图。优化后的辐射方向图在水平方向几乎达到了全向辐射,并且俯仰面方向图集中辐射在水平方向。最后考虑到相位误差,对优化结果进行了误差分析。结果表明:论文提出的优化算法对于非规则曲面上共形阵列的研究具有可行性和有效性。A novel 8-element E-shaped conformal mierostrip antenna array mounted on an irregular surface is designed in this paper and the radiation pattern is optimized by the improved self-adaptive hybrid genetic algorithm（SHGA）. This algorithm introduces the simulated annealing algorithm （SA） and tabu algorithm （TABU） into traditional genetic algorithm and adopted self-adaptive genetic operators to improve the efficiency and optimization quality. Further more, the algorithm also combineds the simulant software with the technology of restructuring pattern to compute the three-dimensional pattern of elements. The optimized azimuth radiation pattern of the conformal array is almost omnidirectional and the elevation radiation pattern is concentrated in the horizontal direction. Finally, the optimized resuits are analyzed in the view of phasic error. The results show that the proposed algorithm is feasible and effective for designing the conformal antenna array on an irregular surface.

关 键 词：共形微带阵 非规则曲面 自适应混合遗传算法 

分 类 号：TN821.8[电子电信—信息与通信工程]