一种新的多径场景下乘性阵列误差有源校正算法  

Novel Multiplicative Array Errors Active Calibration Algorithm in Presence of Multipath

作　　者：姜祖青 杨宾[1] JIANG Zuqing;YANG Bin(Information Engineering University,Zhengzhou 450001,China)

机构地区：[1]信息工程大学,河南郑州450001

出　　处：《信息工程大学学报》2022年第2期129-134,140,共7页Journal of Information Engineering University

摘　　要：针对多径场景下的乘性阵列误差(包括幅相阵列误差和互耦误差)的校正问题,基于最大似然准则,提出一种新的多径场景下的乘性阵列误差有源校正算法,该方法通过牛顿(New-ton)法进行交替迭代实现乘性阵列误差参数、校正源多径传播方位以及多径衰减系数的数值优化。此外,推导全部未知参数的克拉美罗界。仿真验证了校正算法的有效性。To help the calibration of multiplicative array error(including gain-phase array error and mutual coupling error)in presence of multipath,this paper proposes a new active calibration method for multiplicative array error based on the maximum likelihood.The proposed method realizes the numerical optimization of multiplicative array error parameters,calibration source multipath propagation direction and multipath attenuation coefficient by alternating iteration with Newton method.In addition,this paper also derives the cramérrao bound(CRB)of all unknown parameters.Simulation results show that the algorithm has effective performance.

关 键 词：阵列误差校正 有源校正 幅相误差 互耦 克拉美罗界 

分 类 号：TN911.72[电子电信—通信与信息系统]