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Sparse optimization of planar radio antenna arrays using a genetic algorithm

文献类型：期刊论文

作者Di, Jiarui3; Dong L(董亮)2; He, Wei1
刊名Astronomical Techniques and Instruments/天文技术与仪器(英文)
出版日期2025-03
卷号2期号:02页码:100-110
ISSN号1672-7975
DOI10.61977/ati2024060
产权排序第2完成单位
英文摘要Radio antenna arrays have many advantages for astronomical observations, such as high resolution, high sensitivity, multi-target simultaneous observation, and flexible beam formation. Problems surrounding key indices, such as sensitivity enhancement, scanning range extension, and sidelobe level suppression, need to be solved urgently. Here,we propose a sparse optimization scheme based on a genetic algorithm for a 64-array element planar radio antenna array. As optimization targets for the iterative process of the genetic algorithm, we use the maximum sidelobe levels and beamwidth of multiple cross-section patterns that pass through the main beam in three-dimensions, with the maximum sidelobe levels of the patterns at several different scanning angles. Element positions are adjusted for iterations, to select the optimal array configuration. Following sparse layout optimization, the simulated 64-element planar radio antenna array shows that the maximum sidelobe level decreases by 1.79 dB, and the beamwidth narrows by 3°. Within the scan range of ±30°, after sparse array optimization, all sidelobe levels decrease, and all beamwidths narrow. This performance improvement can potentially enhance the sensitivity and spatial resolution of radio telescope systems.
学科主题天文学 ; 射电与天文学
分类号P111
URL标识查看原文
资助项目Ministry of Science and Technology SKA Special Project[2020SKA0110202]; the Special Project on Building a Science and Technology Innovation Center for South and Southeast Asia–International Joint Innovation Platform in Yunnan Province:"Yunnan Sino-Malaysian International Joint Laboratory of HF-VHF Advanced Radio Astronomy Technology"[202303AP140003]; the National Natural Science Foundation of China (NSFC) Joint Fund for Astronomy (JFA) incubator program [U2031133]; the International Partnership Program Project of the International Cooperation Bureau of the Chinese Academy of Sciences:"Belt and Road"Cooperation [114A11KYSB20200001]; the Kunming Foreign (International) Cooperation Base Program:"Yunnan Observatory of the Chinese Academy of Sciences-University of Malaya Joint R&D Cooperation Base for Advanced Radio Astronomy Technology"[GHJD-2021022]; the China-Malaysia Collaborative Research on Space Remote Sensing and Radio Astronomy Observation of Space Weather at Low and Middle Latitudes under the Key Special Project of the State Key R&D Program of the Ministry of Science and Technology for International Cooperation in Science, Technology and Innovation among Governments [2022YFE0140000]; the High-precision calibration method for low-frequency radio interferometric arrays for the SKA project of the Ministry of Science and Technology[2020SKA0110300]
语种英语
资助机构Ministry of Science and Technology SKA Special Project[2020SKA0110202] ; the Special Project on Building a Science and Technology Innovation Center for South and Southeast Asia–International Joint Innovation Platform in Yunnan Province:"Yunnan Sino-Malaysian International Joint Laboratory of HF-VHF Advanced Radio Astronomy Technology"[202303AP140003] ; the National Natural Science Foundation of China (NSFC) Joint Fund for Astronomy (JFA) incubator program [U2031133] ; the International Partnership Program Project of the International Cooperation Bureau of the Chinese Academy of Sciences:"Belt and Road"Cooperation [114A11KYSB20200001] ; the Kunming Foreign (International) Cooperation Base Program:"Yunnan Observatory of the Chinese Academy of Sciences-University of Malaya Joint R&D Cooperation Base for Advanced Radio Astronomy Technology"[GHJD-2021022] ; the China-Malaysia Collaborative Research on Space Remote Sensing and Radio Astronomy Observation of Space Weather at Low and Middle Latitudes under the Key Special Project of the State Key R&D Program of the Ministry of Science and Technology for International Cooperation in Science, Technology and Innovation among Governments [2022YFE0140000] ; the High-precision calibration method for low-frequency radio interferometric arrays for the SKA project of the Ministry of Science and Technology[2020SKA0110300]
版本出版稿
源URL[http://ir.ynao.ac.cn/handle/114a53/28258]  
专题云南天文台_射电天文研究组
作者单位1.The 20th Research Institute of China Electronics Technology Group Corporation
2.Yunnan Province China-Malaysia HF-VHF Advance Radio Astronomy Technology International Joint Laboratory,Yunnan Observatories, Chinese Academy of Sciences;
3.School of Information Engineering, Southwest University of Science and Technology;
推荐引用方式
GB/T 7714		 Di, Jiarui,Dong L,He, Wei. Sparse optimization of planar radio antenna arrays using a genetic algorithm[J]. Astronomical Techniques and Instruments/天文技术与仪器(英文),2025,2(02):100-110.
APA Di, Jiarui,董亮,&He, Wei.(2025).Sparse optimization of planar radio antenna arrays using a genetic algorithm.Astronomical Techniques and Instruments/天文技术与仪器(英文),2(02),100-110.
MLA Di, Jiarui,et al."Sparse optimization of planar radio antenna arrays using a genetic algorithm".Astronomical Techniques and Instruments/天文技术与仪器(英文) 2.02(2025):100-110.

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