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Optimization of Module Partition Based on Weighted Clustering Method for Wideband Irregular Subarrayed Array
In wideband beam scanning with module-level time delay and subarray-level phase shifting methods in irregular subarrayed planar arrays, obtaining the optimal module partition is a critical challenge. In this paper, we propose a module partition optimization method based on the weighted clustering me...
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Published in: | IEEE transactions on antennas and propagation 2023-07, Vol.71 (7), p.1-1 |
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description | In wideband beam scanning with module-level time delay and subarray-level phase shifting methods in irregular subarrayed planar arrays, obtaining the optimal module partition is a critical challenge. In this paper, we propose a module partition optimization method based on the weighted clustering method. Firstly, we demonstrate that pattern matching is equivalent to the subarray-level excitation matching principle. Then we transform the complex optimization model into a real clustering optimization framework based on the second-order Taylor approximation, which reduces the computational complexity. Next the weighted clustering method is proposed to reduce the matching error by modifying the membership rule and cluster center of K-means clustering, ultimately obtaining the optimized module partition scheme. Additionally, we propose a minimum module quantity estimation method to explore the relationship between array bandwidth and module quantity. The proposed methods are applicable to both uniform and non-uniform weighting cases. The effectiveness and potential of the proposed method are verified by different numerical experiments and comparison of state-of art method. |
doi_str_mv | 10.1109/TAP.2023.3270380 |
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In this paper, we propose a module partition optimization method based on the weighted clustering method. Firstly, we demonstrate that pattern matching is equivalent to the subarray-level excitation matching principle. Then we transform the complex optimization model into a real clustering optimization framework based on the second-order Taylor approximation, which reduces the computational complexity. Next the weighted clustering method is proposed to reduce the matching error by modifying the membership rule and cluster center of K-means clustering, ultimately obtaining the optimized module partition scheme. Additionally, we propose a minimum module quantity estimation method to explore the relationship between array bandwidth and module quantity. The proposed methods are applicable to both uniform and non-uniform weighting cases. 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The effectiveness and potential of the proposed method are verified by different numerical experiments and comparison of state-of art method.</description><subject>Arrays</subject><subject>Broadband</subject><subject>Cluster analysis</subject><subject>Clustering</subject><subject>Complexity</subject><subject>minimum module quantity</subject><subject>module partition</subject><subject>Modules</subject><subject>Optimization</subject><subject>Optimization models</subject><subject>Pattern matching</subject><subject>Vector quantization</subject><subject>weighted clustering method</subject><subject>Wideband irregular subarrayed array</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNpNkM1PAjEQxRujiYjePXho4nmxX9uWIxI_SCCQiMFb092dhZKFxW73gH-9XeHg6b2ZvDeT_BC6p2RAKRk-LUeLASOMDzhThGtygXo0TXXCGKOXqEcI1cmQya9rdNM02zgKLUQPVfNDcDv3Y4Or97gu8awu2grwwvrg_nbPtoECR7MCt96E6MdV2wTwbr_GMwibusBl7fHKFZDZfYEn3sO6razHH21mvbfH2Bl1eouuSls1cHfWPvp8fVmO35Pp_G0yHk2TnIk0JHkhqWJUy4xzpaHM04KLVEmimGKSWy54LkWhSiCWMk6YyjRoaQVVKWSp5H30eLp78PV3C00w27r1-_jSMB3blMhhlyKnVO7rpvFQmoN3O-uPhhLTMTWRqemYmjPTWHk4VRwA_ItTyiTR_Bdw_nJR</recordid><startdate>20230701</startdate><enddate>20230701</enddate><creator>Chen, Ji-yuan</creator><creator>Xu, Zhen-hai</creator><creator>Dong, Wei</creator><creator>Xiao, Shun-ping</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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source | IEEE Electronic Library (IEL) Journals |
subjects | Arrays Broadband Cluster analysis Clustering Complexity minimum module quantity module partition Modules Optimization Optimization models Pattern matching Vector quantization weighted clustering method Wideband irregular subarrayed array |
title | Optimization of Module Partition Based on Weighted Clustering Method for Wideband Irregular Subarrayed Array |
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