摘要
在自适应阵列天线抗干扰的一些应用环境中，往往需要天线方向图在干扰的到达方向上形成宽角度的零陷以增强算法的稳健性．文中将宽零陷方向图综合问题转化为一个单目标非线性优化问题，提出了宽零陷方向图综合的目标函数，并给出了用于宽零陷方向图综合的文化算法实现步骤．通过计算机仿真，证明该算法可以达到加宽干扰零陷的目的，所获得的天线方向图旁瓣电平低，并且该算法具有较快的收敛速度．
It is often desirable to widen the interference null width in an adapted pattern to impart robustness into the adapted array in some real environments. In this paper, pattern synthesis with broad nulls is converted into a simple target problem, which is a nonlinear optimization problem. Then an objective function of pattern synthesis with broad nulls is proposed, and cultural algorithms, which are suitable to solve this problem, are produced. The results of computer simulation verify the efficiency of the proposed method, which can satisfy requirements about broad nulls and low side lobe with high convergence rate.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2006年第B07期537-541,共5页
Journal of Harbin Engineering University
关键词
阵列天线
宽零陷
方向图综合
文化算法
array antennas
broad null
pattern synthesis
cultural algorithms
