无相位测量的阵列天线故障诊断方法  

Fault diagnosis of array antenna with phaseless measurements

作　　者：王芳芳[1,2,3] 李开敏 张业荣[1] WANG Fangfang;LI Kaimin;ZHANG Yerong(College of Electronic and Optical Engineering&College of Flexible Electronics(Future Technology),Nanjing University of Posts and Telecommunications,Nanjing 210023,China;National and Local Joint Engineering Laboratory of RF Integration and Micro-Assembly Technology,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China)

机构地区：[1]南京邮电大学电子与光学工程学院、柔性电子(未来技术)学院,南京210023 [2]南京邮电大学射频集成与微组装技术国家地方联合工程实验室,南京210023 [3]东南大学毫米波国家重点实验室,南京210096

出　　处：《电波科学学报》2024年第5期934-940,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金(61601245);毫米波国家重点实验室开放课题(K202240);射频集成与微组装技术国家地方联合工程实验室开放课题(KFJJ20210103);江苏省高等学校自然科学研究面上项目(20KJB510008)。

摘　　要：传统的阵列天线故障诊断方法要求测量数据同时具有幅度和相位信息,而相位测量通常花费较多,甚至技术上不可行。为了解决该问题,文中提出了一种无相位测量的阵列天线故障诊断方法。首先构造相位误差矩阵,并将其引入阵列天线正向模型,得到含有未知相位信息的信号模型;然后基于该信号模型,交替迭代求解相位误差矩阵和阵元激励,最终达到对阵列天线故障诊断的目的。数值仿真实验表明,本文所提方法在准确性、有效性和鲁棒性上都优于传统阵列天线故障诊断方法,具有广阔的应用前景。Traditional array antenna fault diagnosis methods require measurement data with both amplitude and phase information,while phase measurement is usually expensive and technically infeasible.To address this issue,an array antenna fault diagnosis method with phaseless measurements is proposed in the paper.The proposed method first constructs a phase error matrix and introduces it into the forward model of the array antenna,thereby,obtaining a signal model with unknown phase information;based on this signal model,the phase error matrix and array element excitations are iteratively solved,ultimately achieving the goal of diagnosing faulty elements of the array antenna.Numerical simulations demonstrate that the proposed method is superior to traditional array antenna fault diagnosis methods in terms of accuracy,effectiveness and robustness.The proposed method has important application prospects.

关 键 词：阵列天线 故障诊断 无相位 相位误差 正则化 

分 类 号：TN011[电子电信—物理电子学]