基于SCNs的大口径陆基有源相控阵天线变形重构方法  

Deformation Reconstruction of Large Aperture Land-based Active Phased Array Antenna Based on SCNs

作　　者：严粤飞 王龙杨 徐鹏颖 王艳[4] 陈竞覃 王志海[5] 宋学官 翁俊[7] 王从思 YAN Yuefei;WANG Longyang;XU Pengying;WANG Yan;CHEN Jingtan;WANG Zhihai;SONG Xueguan;WENG Jun;WANG Congsi(Guangzhou Institute of Technology,Xidian University,Guangzhou 510555,China;State Key Laboratory of Electromechanical Integrated Manufacturing of High-Performance Electronic Equipments,Xidian University,Xi’an 710071,China;School of Instrument and Electronics,North University of China,Taiyuan 030051,China;Xi’an University of Architecture and Technology,Xi’an 710055,China;The 38th Research Institute of CETC,Hefei 230088,China;Dalian University of Technology,Dalian 116024,China;Beijing Radio Measurement Institute,Beijing 100854,China)

机构地区：[1]西安电子科技大学广州研究院,广东广州510555 [2]西安电子科技大学高性能电子装备机电集成制造全国重点实验室,陕西西安710071 [3]中北大学仪器与电子学院,山西太原030051 [4]西安建筑科技大学,陕西西安710055 [5]中国电子科技集团公司第三十八研究所,安徽合肥230088 [6]大连理工大学,辽宁大连116024 [7]北京无线电测量研究所,北京100854

出　　处：《电子机械工程》2024年第5期13-21,共9页Electro-Mechanical Engineering

基　　金：国家重点研发计划(2023YFB3406900);国家自然科学基金资助项目(U23A6017);国防基础科研计划(JCKY2021210B007);陕西省秦创原“科学家+工程师”队伍建设计划项目(2022KXJ-030)。

摘　　要：复杂的服役环境会导致相控阵雷达阵面产生变形,降低雷达的探测威力。随着有源相控阵天线向着大口径、高频段、高增益方向不断发展,结构变形对雷达性能的影响更为严重。因此要保障雷达天线“看”得更清、“看”得更准,需要实时感知阵面状态以弥补天线电性能的损失。本文针对高频段大口径陆基有源相控阵天线,提出了基于随机配置网络(Stochastic Configuration Networks,SCNs)的阵面变形重构算法。首先,对大口径陆基有源相控阵天线的结构进行了分析,指出导致天线结构变形的主要因素以及结构变形对电性能的影响机理;然后,基于SCNs建立有源相控阵天线阵面变形重构模型;最后,通过大量实验数据揭示结构应变与位移的隐性关系,验证所提出的方法满足高频段天线阵面高精度重构要求。Complex service environments can cause the array surface of phased array radar to deform and thus reduce the detection power of the radar.With the continuous development of active phased array antennas towards large apertures,high frequencies and high gains,the influence of structural deformation on radar performance is more severe.Therefore,to ensure that the radar antenna can“see”more clearly and accurately,it is necessary to sense the array surface state in real time to compensate for the loss of antenna electrical performance.This paper proposes an array surface deformation reconstruction algorithm based on SCNs for high-frequency large-aperture land-based active phased array antennas.Firstly,the structure of the large-aperture land-based active phased array antenna is analyzed,and the main factors causing antenna structure deformation and the influence mechanism of structural deformation on electrical performance are pointed out.Then,an array surface deformation reconstruction model for active phased array antenna is established based on SCNs.Finally,the implicit relationship between structural strain and displacement is revealed through a large amount of experimental data,verifying that the proposed method meets the high-precision reconstruction requirements of the array surface of high-frequency antennas.

关 键 词：有源相控阵天线 结构应变 变形重构 随机配置网络 

分 类 号：TN821.8[电子电信—信息与通信工程]