摘要
将阵列综合思想用于阵列天线雷达散射截面(RCS)的减缩,通过调整非均匀阵列的阵元间距来优化阵列天线的辐射性能与低散射特性.以差分进化(DE)算法作为优化工具,并通过矩量法(MoM)来实现候选解的辐射、散射计算.优化时采用了辐射、散射兼顾的目标函数,给出了具有低副瓣、低散射特性的天线阵列.最后,给出的对称振子阵列和领结阵列的优化实例表明,采用上述方法可使阵列获得5 dB以上的RCS减缩.
The method of array synthesis is used in radar cross section （RCS） reduction of an array antenna, and the radiation performance and low scattering property of an array antenna are optimized by adjusting the element spacing of a non-uniform array. The differential evolution （DE） algorithm is adopted as the optimization tool, while the method of moments （MoM） is applied to calculate the radiation and scattering parameters of each candidate solution. The objective function for combining antenna radiation with scattering is used to synthesize an array with a low side lobe and low scattering property. Finally, the optimization examples of the dipole and bowtie show that the array RCS can be reduced more than 5dB by this method.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2010年第6期1077-1081,共5页
Journal of Xidian University
基金
中央高校基本科研业务费资助项目(JY10000902009)
国家自然科学基金资助项目(60801042)
关键词
阵列综合
差分进化算法
矩量法
RCS减缩
array synthesis
differential evolution algorithm
method of moments
RCS reduction
