Transformations for nonideal uniform circular arrays operating in correlated signal environments
(2006) In IEEE Transactions on Signal Processing 54(1). p.34-48- Abstract
- The Davies transformation is a method to transform the steering vector of a uniform circular array (UCA) to one with Vandermonde form. As such, it allows techniques such as spatial smoothing for direction-of-arrival (DOA) estimation in a correlated signal environment, developed originally for uniform linear arrays, to be applied to UCAs. However, the Davies transformation can be highly sensitive to perturbations of the underlying array model. This paper presents a method for deriving a more robust transformation using optimization techniques. The effectiveness of the method is illustrated through a number of DOA estimation examples.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/419850
- author
- Lau, Buon Kiong LU ; Leung, Y H ; Liu, YQ and Teo, K L
- organization
- publishing date
- 2006
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- uniform circular arrays (UCAs), robustness, semi-infinite programming, quadratic, correlated signals, direction-of-arrival (DOA) estimation
- in
- IEEE Transactions on Signal Processing
- volume
- 54
- issue
- 1
- pages
- 34 - 48
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000234755600004
- scopus:30344471243
- ISSN
- 1053-587X
- DOI
- 10.1109/TSP.2005.861104
- language
- English
- LU publication?
- yes
- id
- 2ece342d-0aad-43dc-b226-455e4c017fca (old id 419850)
- date added to LUP
- 2016-04-01 16:43:56
- date last changed
- 2022-01-28 21:44:56
@article{2ece342d-0aad-43dc-b226-455e4c017fca, abstract = {{The Davies transformation is a method to transform the steering vector of a uniform circular array (UCA) to one with Vandermonde form. As such, it allows techniques such as spatial smoothing for direction-of-arrival (DOA) estimation in a correlated signal environment, developed originally for uniform linear arrays, to be applied to UCAs. However, the Davies transformation can be highly sensitive to perturbations of the underlying array model. This paper presents a method for deriving a more robust transformation using optimization techniques. The effectiveness of the method is illustrated through a number of DOA estimation examples.}}, author = {{Lau, Buon Kiong and Leung, Y H and Liu, YQ and Teo, K L}}, issn = {{1053-587X}}, keywords = {{uniform circular arrays (UCAs); robustness; semi-infinite programming; quadratic; correlated signals; direction-of-arrival (DOA) estimation}}, language = {{eng}}, number = {{1}}, pages = {{34--48}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Transactions on Signal Processing}}, title = {{Transformations for nonideal uniform circular arrays operating in correlated signal environments}}, url = {{https://lup.lub.lu.se/search/files/45867538/lau_tsp_2006.pdf}}, doi = {{10.1109/TSP.2005.861104}}, volume = {{54}}, year = {{2006}}, }