Teng, L., Wang, Q., Chen, H. et al. (3 more authors) (2021) Atomic norm-based DOA estimation with sum and difference co-arrays in coexistence of circular and non-circular signals. Circuits, Systems, and Signal Processing, 40 (10). pp. 5033-5053. ISSN 0278-081X
Abstract
Sparse arrays can increase the array aperture and degrees of freedom through the construction of either sum or difference co-arrays or both. In order to exploit the advantages of sparse arrays while estimating directions of arrival (DOAs) of a mixture of circular and non-circular signals, in this paper, a gridless DOA estimation method is proposed by employing a recently introduced enhanced nested array, whose virtual arrays have no holes. The virtual signals derived from both sum and difference co-arrays are constructed based on atomic norm minimization. It is shown that the proposed method also works when the circular and non-circular signals come from the same set of directions. Simulation results are provided to demonstrate the performance of the proposed method.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 The Authors. This is an author-produced version of a paper subsequently published in Circuits, Systems, and Signal Processing. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | DOA estimation; Enhanced nested array; Virtual array; Atomic norm; Non-circular signals |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 08 Apr 2021 11:41 |
Last Modified: | 07 Apr 2022 00:38 |
Status: | Published |
Publisher: | Springer Nature |
Refereed: | Yes |
Identification Number: | 10.1007/s00034-021-01708-7 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:172943 |