摘要
非均匀稀布阵通常具有较高的旁瓣。为降低旁瓣,本文对传统遗传算法进行了改进并用于阵元位置的优化。对于一个孔径为50λ,由25个阵元组成的阵列天线,本文获得了比已有文献更低的旁瓣。
Unequally spaced arrays are characterized by high side lobes. To reduce the side lobes, traditional genetic algorithm is modified to optimize the position of elements in the array. Due to the high flexibility of genetic algorithm, the results obtained for a 25-element array over an aperture of 50λ are better than those reported in the literatures.
基金
国防预研基金
国防重点实验室基金
关键词
遗传算法
阵列天线
优化
旁瓣
Genetic algorithm, Array, Optimization, Side lobes