面阵阵元位置及幅相误差有源校正算法  

Active Correction Algorithms for Element Position and Amplitude and Phase Error of Area Array

作　　者：袁春姗[1] 唐济远[1] 要庆生 YUAN Chun-shan;TANG Ji-yuan;YAO Qing-sheng(Kunming Shipborne Equipment Research and Test Center,Kunming 650051,China)

机构地区：[1]昆明船舶设备研究试验中心,云南昆明650051

出　　处：《舰船电子对抗》2021年第6期78-81,116,共5页Shipboard Electronic Countermeasure

摘　　要：阵列误差会导致信号波达方向(DOA)估计性能严重下降。通过阵元位置及幅相误差模型,拓展了一种面阵阵元位置幅相误差的简化多阶维纳滤波(SMSWF)快速有源校正算法。通过仿真结果表明,利用该算法可以较准确估计阵元位置及幅相误差,MUSIC谱峰的尖锐程度及分辨力明显提高,DOA估计效果较好。Array errors will cause serious degradation of the signal direction of arrival(DOA)estimation performance.In this paper,a fast active correction algorithm of simplified multi-stage Wiener filter(SMSWF)for the amplitude and phase error of area array element position is extended through the array element position and amplitude-phase error model.The simulation results show that,by using the algorithm,the position of the array element and the amplitude and phase error can be more accurately estimated,the sharpness and resolution of the MUSIC spectral peaks are significantly improved,and the DOA estimation effect is better.

关 键 词：误差模型 面阵 简化多阶维纳滤波有源校正 波达方向估计 

分 类 号：TN911.7[电子电信—通信与信息系统]