Constant-Beamwidth LCMV Beamformer with Rectangular Arrays
This paper presents a novel approach utilizing uniform rectangular arrays to design a constant-beamwidth (CB) linearly constrained minimum variance (LCMV) beamformer, which also improves white noise gain and directivity. By employing a generalization of the convolutional Kronecker product beamformin...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Algorithms |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1999-4893/16/8/385 |
| _version_ | 1797585763051765760 |
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| author | Vitor Probst Curtarelli Israel Cohen |
| author_facet | Vitor Probst Curtarelli Israel Cohen |
| author_sort | Vitor Probst Curtarelli |
| collection | DOAJ |
| description | This paper presents a novel approach utilizing uniform rectangular arrays to design a constant-beamwidth (CB) linearly constrained minimum variance (LCMV) beamformer, which also improves white noise gain and directivity. By employing a generalization of the convolutional Kronecker product beamforming technique, we decompose a physical array into virtual subarrays, each tailored to achieve a specific desired feature, and we subsequently synthesize the original array’s beamformer. Through simulations, we demonstrate that the proposed approach successfully achieves the desired beamforming characteristics while maintaining favorable levels of white noise gain and directivity. A comparative analysis against existing methods from the literature reveals that the proposed method performs better than the existing methods. |
| first_indexed | 2024-03-11T00:11:38Z |
| format | Article |
| id | doaj.art-86d097885f2e41a29e2d674682a2fec7 |
| institution | Directory Open Access Journal |
| issn | 1999-4893 |
| language | English |
| last_indexed | 2024-03-11T00:11:38Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Algorithms |
| spelling | doaj.art-86d097885f2e41a29e2d674682a2fec72023-11-18T23:56:38ZengMDPI AGAlgorithms1999-48932023-08-0116838510.3390/a16080385Constant-Beamwidth LCMV Beamformer with Rectangular ArraysVitor Probst Curtarelli0Israel Cohen1Graduate Program in Electrical Engineering, Universidade Federal de Santa Catarina, Florianópolis CEP 88040-900, SC, BrazilAndrew and Erna Viterbi Faculty of Electrical and Computer Engineering, Technion–Israel Institute of Technology, Technion City, Haifa 3200003, IsraelThis paper presents a novel approach utilizing uniform rectangular arrays to design a constant-beamwidth (CB) linearly constrained minimum variance (LCMV) beamformer, which also improves white noise gain and directivity. By employing a generalization of the convolutional Kronecker product beamforming technique, we decompose a physical array into virtual subarrays, each tailored to achieve a specific desired feature, and we subsequently synthesize the original array’s beamformer. Through simulations, we demonstrate that the proposed approach successfully achieves the desired beamforming characteristics while maintaining favorable levels of white noise gain and directivity. A comparative analysis against existing methods from the literature reveals that the proposed method performs better than the existing methods.https://www.mdpi.com/1999-4893/16/8/385LCMV beamformerconstant-beamwidth beamformingKronecker product beamformerarray signal processingrectangular sensor arrays |
| spellingShingle | Vitor Probst Curtarelli Israel Cohen Constant-Beamwidth LCMV Beamformer with Rectangular Arrays Algorithms LCMV beamformer constant-beamwidth beamforming Kronecker product beamformer array signal processing rectangular sensor arrays |
| title | Constant-Beamwidth LCMV Beamformer with Rectangular Arrays |
| title_full | Constant-Beamwidth LCMV Beamformer with Rectangular Arrays |
| title_fullStr | Constant-Beamwidth LCMV Beamformer with Rectangular Arrays |
| title_full_unstemmed | Constant-Beamwidth LCMV Beamformer with Rectangular Arrays |
| title_short | Constant-Beamwidth LCMV Beamformer with Rectangular Arrays |
| title_sort | constant beamwidth lcmv beamformer with rectangular arrays |
| topic | LCMV beamformer constant-beamwidth beamforming Kronecker product beamformer array signal processing rectangular sensor arrays |
| url | https://www.mdpi.com/1999-4893/16/8/385 |
| work_keys_str_mv | AT vitorprobstcurtarelli constantbeamwidthlcmvbeamformerwithrectangulararrays AT israelcohen constantbeamwidthlcmvbeamformerwithrectangulararrays |