dc.contributor.author | Chen, H | en_US |
dc.contributor.author | Lin, H | en_US |
dc.contributor.author | Liu, W | en_US |
dc.contributor.author | Wang, Q | en_US |
dc.contributor.author | Shen, Q | en_US |
dc.contributor.author | Wang, G | en_US |
dc.date.accessioned | 2024-03-20T08:35:08Z | |
dc.date.issued | 2024-01-01 | en_US |
dc.identifier.issn | 1053-587X | en_US |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/95519 | |
dc.description.abstract | Sparse linear arrays (SLAs) can be designed in a systematic way, with the ability for underdetermined DOA estimation where a greater number of sources can be detected than that of sensors. In this paper, as the first stage, a new systematic design named multi-subarray dilated nested array (MDNA), whose difference co-array (DCA) can be proved to be hole-free, is firstly proposed by introducing a sparse ULA and multiple identical dense ULAs with appropriate sub-ULA spacings. The MDNA will degenerate into the nested array under specific conditions, and the uniform degrees of freedom (uDOFs) of MDNA is larger than that of its parent nested array. On the basis of MDNA, to reduce the mutual coupling effect, an augmented multi-subarray dilated nested array (AMDNA) is constructed by migrating some elements of the dense segments of MDNA, without reducing the number of uDOFs. Several theoretical properties of the proposed array structures are proved, and simulation results are provided to demonstrate the effectiveness and superiority of the proposed AMDNA over some existing sparse arrays. | en_US |
dc.relation.ispartof | IEEE Transactions on Signal Processing | en_US |
dc.rights | © 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | |
dc.title | Augmented Multi-Subarray Dilated Nested Array with Enhanced Degrees of Freedom and Reduced Mutual Coupling | en_US |
dc.type | Article | |
dc.identifier.doi | 10.1109/TSP.2024.3374557 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
qmul.funder | Cooperative Underwater Surveillance Networks (COUSIN)::Engineering and Physical Sciences Research Council | en_US |