摘要
通过分析几种优化阵列副瓣算法的特点,提出将差分进化算法与模拟退火方法相结合的方法,实现了唯相位加权降低阵列天线副瓣。采用快速傅里叶变换法提高计算阵列天线方向图的效率。为了证明该方法的有效性,给出了40×40均匀阵列的唯相位加权低副瓣优化结果,阵列天线副瓣唯相位加权优化后达到了-22.13 d B。
With the analysis of the characteristics of some optimized array sidelobe algorithms,a phase-only weighting method combining the differential evolution（ DE） algorithm and the simulated annealing（ SA） algorithm is proposed and used to lower the array antenna sidelobe. Besides,in the process of optimization,the FFT is used to improve the efficiency of calculating the array antenna patterns. The array antenna sidelobe is up to- 22. 13 d B after the optimization of the phase-only weighting for 40 × 40 uniform arrays to prove the method to be effective.
出处
《雷达与对抗》
2015年第2期45-48,共4页
Radar & ECM
关键词
唯相位加权
低副瓣
阵列天线
phase-only weighting
low sidelobe
array antenna
