摘要
针对共享孔径阵列天线,基于一种新型的全局优化算法——风驱动优化,提出了一种新的共享孔径方向图综合方法。首先,设计两阵列相邻阵元的间距约束条件,将两个子阵波束图的最高旁瓣电平作为优化目标。然后,在约束公式条件下,先后确定子阵1和子阵2阵列单元的初始坐标,通过利用风驱动算法优化两子阵单元坐标位置来降低旁瓣电平,实现不同频率的共享孔径阵列天线设计。最后,通过与粒子群算法和传统SMI算法对比,验证了该算法在共享孔径方向图中的可行性和有效性。
A new optimum method of shared aperture pattern synthesis is proposed based on the new global optimization algorithm,Wind Driven Optimization（ WDO）,for the shared aperture array antenna. Firstly,the space constraint condition of the array element adjacent to two arrays is designed,and the Peak Side Lobe Level（ PSLL） of the two sub-array patterns is used as the objective function. Then,according to the constraint formula,the initial coordinates of sub-array 1 and sub-array 2 array elements are developed successively.These two sub-array elements positions are optimized by using the WDO method to reduce PSLL of the pattern synthesis,in order to fulfill the design of shared aperture antenna array working at different frequencies.Finally,a simulation is made and the result shows that： compared with the particle swarm optimization algorithm and the traditional SMI algorithm,this proposed algorithm has better feasibility and effectiveness in the shared aperture pattern synthesis.
作者
费晓
张贞凯
田雨波
刘新星
FEI Xiao;ZHANG Zhen-kai;TIAN Yu-bo;LIU Xin-xing(School of Electronic and Information, Jiangsu University of Science and Technology, Zhenjiang 212000, China;No. 722 Research Institute of China Shipbuilding Industry, Wuhan 430000, China)
出处
《电光与控制》
北大核心
2018年第6期52-55,82,共5页
Electronics Optics & Control
基金
国家自然科学基金(61401179)
江苏省研究生科研与实践创新计划项目(SJCX17_0592)
关键词
多功能阵列天线
共享孔径
风驱动优化算法
最高旁瓣电平
子阵
multi-function array antenna
shared aperture
wind driven optimization
maximum side lobe level
sub-array
