A hybrid l1 minimization algorithm with enhanced sparsity is proposed for the synthesis of sparse linear arrays. Moreover, the desired directivity as a constraint condition for a fixed scanning range is included in the hybrid algorithm in order to obtain a better pattern. In particular, the proposed hybrid algorithm can be divided into two steps. The first step is to iteratively solve a smooth-weighted l1 minimization problem. The obtained weight vector is then considered as the initial weight vector in the second step, where a weighted l1 minimization problem is solved. In comparison to other methods, simulation results show that the proposed method has an improved synthesis efficiency for sparse arrays.

Synthesis of Sparse Linear Arrays Including Directivity via a Hybrid l1 Minimization Algorithm / Yang, F.; Yang, S.; Chen, Y.; Rocca, P.. - STAMPA. - (2020), pp. 1-4. ((Intervento presentato al convegno EuCAP 2020 tenutosi a Copenhagen nel 15th-20th March 2020 [10.23919/EuCAP48036.2020.9135461].

Synthesis of Sparse Linear Arrays Including Directivity via a Hybrid l1 Minimization Algorithm

Yang S.;Rocca P.
2020

Abstract

A hybrid l1 minimization algorithm with enhanced sparsity is proposed for the synthesis of sparse linear arrays. Moreover, the desired directivity as a constraint condition for a fixed scanning range is included in the hybrid algorithm in order to obtain a better pattern. In particular, the proposed hybrid algorithm can be divided into two steps. The first step is to iteratively solve a smooth-weighted l1 minimization problem. The obtained weight vector is then considered as the initial weight vector in the second step, where a weighted l1 minimization problem is solved. In comparison to other methods, simulation results show that the proposed method has an improved synthesis efficiency for sparse arrays.
14th European Conference on Antennas and Propagation: EuCAP 2020
Piscataway, NJ
Institute of Electrical and Electronics Engineers Inc.
978-88-31299-00-8
Yang, F.; Yang, S.; Chen, Y.; Rocca, P.
Synthesis of Sparse Linear Arrays Including Directivity via a Hybrid l1 Minimization Algorithm / Yang, F.; Yang, S.; Chen, Y.; Rocca, P.. - STAMPA. - (2020), pp. 1-4. ((Intervento presentato al convegno EuCAP 2020 tenutosi a Copenhagen nel 15th-20th March 2020 [10.23919/EuCAP48036.2020.9135461].
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/282469
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