8单元均匀圆阵天线互耦合校正方法  

Mutual coupling compensation in 8-element uniform circular array

作　　者：吕小永[1] 王俊[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071

出　　处：《系统工程与电子技术》2015年第10期2212-2216,共5页Systems Engineering and Electronics

基　　金：国家部委共用技术基金(9140A07020614DZ01)资助课题

摘　　要：提出了一种8单元均匀圆阵天线互耦合校正方法。通过采用压缩感知方法,在互耦合效应存在的情况下估计校正信号源的到达角,并确定互耦合系数的迭代初始值,然后通过求解一个优化问题来得到互耦合系数。仿真实验与实测数据结果表明,所提的压缩感知方法能够精确估计校正信号源的到达角,所提方法计算得到的互耦合系数对8单元均匀圆阵天线的校正效果良好。A mutual coupling compensation method in 8 element uniform circular array is proposed.Firstly, the compressed sensing method is used to determine the direction of arrival （DOA）of the calibration signal source,as well as the initial mutual coupling coefficients.Then the mutual coupling coefficients are obtained by solving an optimization problem.Simulation results show that the proposed compressed method is able to esti-mate the DOA of the calibration source with a high accuracy and the mutual coupling coefficients obtained by the proposed method are able to calibrate the 8 elememt uniform circular array excellently.

关 键 词：互耦合校正 8单元均匀圆阵天线 压缩感知 校正信号源 到达角 

分 类 号：TN957.2[电子电信—信号与信息处理]