摘要
在稀疏阵列天线和交错子阵理论的基础上提出了雷达-通信天线共享孔径的新方法。分析了共享孔径下雷达和通信的关键指标,明确了雷达阵列方向图的最大峰值旁瓣电平和多输入多输出通信系统的信道容量2个优化目标,提出了给定阵元数及孔径大小条件下的阵元位置优化问题。在设置了偏好度后,将二元优化问题转化为单目标优化问题,提出了一种基于遗传算法的求解方法。仿真实验证明了所提优化方法的可行性,给出了针对不同偏好度的优化曲线。
A new method of antenna aperture sharing for communication and radar system is presented on the basis of the sparse array antenna and staggered sub-array theory. An analysis is made to the key indicators of the radar and communications with a shared aperture. Two key indicators are chosen as optimization objectives：the maximum peak side-lobe level of the radar array pattern, and the communication channel capacity of Multiple-Input Multiple-Output （ MIMO ） communication system. The array element position optimization problem under given array element number and aperture size is put forward. After setting a preference degree, the optimization problem is transformed into a single-objective optimization problem, and a solving method based on genetic algorithm is given. Simulations and analysis prove the feasibility of the proposed optimization method, and the optimization curves for different preference degrees are given.
出处
《电光与控制》
北大核心
2018年第2期83-87,共5页
Electronics Optics & Control
基金
国家自然科学基金(61703412)
陕西省自然科学基金(2015JM6306)
武警工程大学基础研究项目(WJ20160132)
关键词
稀疏阵列天线
交错子阵
共享孔径
阵元位置优化
遗传算法
sparse array antenna
staggered sub-array
antenna aperture sharing
array element position optimization
genetic algorithm
作者简介
娄昊（1984-），男，河南原阳人，博士生，研究方向为雷达通信一体化。
