摘要
文中利用遗传算法综合不等距相控阵天线,把经过改进的方向图函数用于适应度函数的计算,在一定的带宽范围内对天线阵的馈电幅度及阵元间距进行了优化。这种方法在抑制副瓣电平的同时使天线阵的相对带宽得到了较大的提高,大大改善了相控阵的工作带宽并且达到了宽角扫描的要求。
The synthesis of nonuniformly spaced phased arrays is investigated by genetic algorithms,During the antenna optimization process in wideband,element positions and current amplitudes are chosen as optimized variables and modi- fied pattern is defined as the fitness function.As a result,not only the relative bandwidth is broadened obviously but al- so the wide-scan angle is realized at the same time of suppressing the sidelobe levels.
出处
《弹箭与制导学报》
CSCD
北大核心
2006年第S3期596-597,603,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
遗传算法
相控阵
宽带
优化
genetic algorithm
phased array
broadband
optimization
