eprintid: 889 rev_number: 9 eprint_status: archive userid: 14 dir: disk0/00/00/08/89 datestamp: 2024-06-17 07:16:40 lastmod: 2024-06-17 07:16:40 status_changed: 2024-06-17 07:16:40 type: monograph metadata_visibility: show creators_name: BENONI, Arianna creators_name: ROCCA, Paolo creators_name: ANSELMI, Nicola creators_name: MASSA, Andrea creators_id: arianna.benoni@unitn.it creators_id: paolo.rocca@unitn.it creators_id: nicola.anselmi.1@unitn.it creators_id: andrea.massa@unitn.it title: Clustering Complex Excitations in Linear Arrays with Hilbert Ordering ispublished: pub subjects: AWC subjects: MAT full_text_status: public monograph_type: technical_report keywords: Local Optimization, Array Synthesis, Sub-Arraying abstract: This study investigates the clustering of linear phased arrays (PAs) employing complex weights. Leveraging the inherent locality-preserving nature of the Hilbert curve, an initial reduction of problem dimensionality is performed. Subsequently, a basic clustering algorithm is adopted to enhance the alignment of the radiated pattern with a predefined reference. Both contiguous and noncontiguous partitions of the Hilbert-ordered list of complex excitations are comprehensively evaluated to systematically explore the solution space. Representative results, including reference PAs generating steered pencil and shaped beams, are presented for validation and to highlight the superior performance of the proposed approach over conventional k-means algorithms. date: 2024-06-14 publisher: ELEDIA Research Center - University of Trento referencetext: [1] N. Anselmi, L. Tosi, P. Rocca, G. Toso, and A. Massa, “A self-replicating single-shape tiling technique for the design of highly modular planar phased arrays - The case of L-shaped rep-tiles,” IEEE Trans. Antennas Propag. , vol. 71, no. 4, pp. 3335-3348, Apr. 2023. [2] A. Benoni, P. Rocca, N. Anselmi, and A. 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