A New Nested Array Configuration With Increased Degrees of Freedom
In this paper, a new linear array configuration based on the concept of two-level nested array is proposed. Specifically, the proposed array configuration consists of two uniform linear arrays (ULAs) plus a separate sensor with appropriate spacing apart. Compared with the original two-level nested a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/8125679/ |
| _version_ | 1818913030763708416 |
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| author | Huiping Huang Bin Liao Xiaoye Wang Xiansheng Guo Jianjun Huang |
| author_facet | Huiping Huang Bin Liao Xiaoye Wang Xiansheng Guo Jianjun Huang |
| author_sort | Huiping Huang |
| collection | DOAJ |
| description | In this paper, a new linear array configuration based on the concept of two-level nested array is proposed. Specifically, the proposed array configuration consists of two uniform linear arrays (ULAs) plus a separate sensor with appropriate spacing apart. Compared with the original two-level nested array, the degrees of freedom of our proposed array configuration can be increased by 2L - 6 for an array with L physical sensors. Moreover, the virtual array aperture can be enlarged by nearly (L<sup>2</sup>/2 - L - 2)d<sub>1</sub>, where d<sub>1</sub> is the inter-element spacing of the first ULA. Owing to these advantages, our proposed array configuration has enhanced resolution and achieves better performance in parameter estimation, such as direction-ofarrival (DOA) estimation. Numerical simulations of DOA estimation exhibit the effectiveness and superiority of this array configuration. |
| first_indexed | 2024-12-19T23:24:01Z |
| format | Article |
| id | doaj.art-f544f257b76e45b1bcef6ad0b2d8bd71 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T23:24:01Z |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-f544f257b76e45b1bcef6ad0b2d8bd712022-12-21T20:01:54ZengIEEEIEEE Access2169-35362018-01-0161490149710.1109/ACCESS.2017.27791718125679A New Nested Array Configuration With Increased Degrees of FreedomHuiping Huang0Bin Liao1https://orcid.org/0000-0003-4636-4339Xiaoye Wang2Xiansheng Guo3https://orcid.org/0000-0002-8440-1607Jianjun Huang4College of Information Engineering, Shenzhen University, Shenzhen, ChinaCollege of Information Engineering, Shenzhen University, Shenzhen, ChinaCollege of Information Engineering, Shenzhen University, Shenzhen, ChinaDepartment of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaCollege of Information Engineering, Shenzhen University, Shenzhen, ChinaIn this paper, a new linear array configuration based on the concept of two-level nested array is proposed. Specifically, the proposed array configuration consists of two uniform linear arrays (ULAs) plus a separate sensor with appropriate spacing apart. Compared with the original two-level nested array, the degrees of freedom of our proposed array configuration can be increased by 2L - 6 for an array with L physical sensors. Moreover, the virtual array aperture can be enlarged by nearly (L<sup>2</sup>/2 - L - 2)d<sub>1</sub>, where d<sub>1</sub> is the inter-element spacing of the first ULA. Owing to these advantages, our proposed array configuration has enhanced resolution and achieves better performance in parameter estimation, such as direction-ofarrival (DOA) estimation. Numerical simulations of DOA estimation exhibit the effectiveness and superiority of this array configuration.https://ieeexplore.ieee.org/document/8125679/Nested arrayarray configurationdegrees of freedomvirtual array apertureparameter estimationdirection-of-arrival |
| spellingShingle | Huiping Huang Bin Liao Xiaoye Wang Xiansheng Guo Jianjun Huang A New Nested Array Configuration With Increased Degrees of Freedom IEEE Access Nested array array configuration degrees of freedom virtual array aperture parameter estimation direction-of-arrival |
| title | A New Nested Array Configuration With Increased Degrees of Freedom |
| title_full | A New Nested Array Configuration With Increased Degrees of Freedom |
| title_fullStr | A New Nested Array Configuration With Increased Degrees of Freedom |
| title_full_unstemmed | A New Nested Array Configuration With Increased Degrees of Freedom |
| title_short | A New Nested Array Configuration With Increased Degrees of Freedom |
| title_sort | new nested array configuration with increased degrees of freedom |
| topic | Nested array array configuration degrees of freedom virtual array aperture parameter estimation direction-of-arrival |
| url | https://ieeexplore.ieee.org/document/8125679/ |
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