Phased array antenna diagnosis from amplitude-only data using parallel deep learning models

被引:4
|
作者
Kulevome, Delanyo Kwame Bensah [1 ,2 ]
Wang, Hong [1 ,2 ]
Wang, Xuegang [1 ]
Kumar, Rajesh [2 ]
Cobbinah, Bernard [2 ]
机构
[1] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu, Peoples R China
[2] Univ Elect Sci & Technol China, Yangtze Delta Reg Inst, Huzhou, Peoples R China
基金
中国国家自然科学基金;
关键词
convolutional neural networks; deep learning; phased array antennas; array system diagnosis; element failure; ELEMENTS;
D O I
10.1117/1.JRS.17.017502
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
There is a need for a reliable diagnostic process that can provide the information required to maintain optimal operating conditions of phased array antennas. The phase and amplitude information can be retrieved from the complex radiated field. However, phase measurement is laborious and costly at high frequencies. To overcome this challenge, it is of great relevance to create diagnostics methods that solely utilize the amplitude data. The shape and characteristics of the radiated field of a phased array antenna are predicated on the number of operating elements in the array. This implies that a failed element in the array will change the nature of the radiated pattern. We can locate a failed element using a learning algorithm to map the location of a failed element to the radiated field. We propose a technique for finding failed elements using only amplitude data by dividing the array into multiple subarrays. Each subarray is trained with dedicated deep convolutional neural networks for faulty element identification. We evaluated the proposed approach using simulated data for 20 x 20 and 30 x 30 array structures. The results demonstrate that the proposed approach can effectively diagnose and locate failed elements in a phased array antenna using amplitude-only data.
引用
收藏
页数:15
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