基于免疫算法的相位控制方向图零点生成

Null Steering Using Immuning Algorithm by Controlling Only the Current Phases

提出了一种采用基于适应值的高斯变异和自适应克隆规模控制相结合的免疫算法,并将该算法应用于相位控制的方向图零点生成。由于该算法采用的是分散式和独立式的目标搜索方式,保证了基因群体的多样性,因此较好地克服了早熟现象。计算机仿真结果表明,文中的算法在方向图的主瓣附近、旁瓣区、对称主瓣两侧方向都能生成零点,并且获得了比已有文献更低的零深。

An adapted immuning algorithm is presented which uses both the gauss mutation and the clone scale control. The proposed algorithm is applied to null steering of linear array by controlling only the current phases. The premature phenomenon is overcome effectively because the diversity of gene colony which on account of disperse and separation of this algorithm. Numerical results indicate that nulls can impose both at the specified directions in the sidelobe region and in the nerghbourhood of the main beam and alse at symmetric locations with respect to the main beam. The null depth levels obtained are lower than those repored in the literatures.