Direction of arrival estimation in the presence of correlated signals with non-ideal uniform circular arrays
(2002) Nordic Radio Science and Communication Conference 2002 p.558-562- Abstract
- The Davies transformation is a method to transform
the steering vector of a uniform circular array (UCA) to a
vector with Vandermonde form. As this form is similar to
that of the steering vector of a uniform linear array
(ULA), we can apply to UCAs the many tools that have
been developed for ULAs. However, the Davies
transformation can be highly sensitive to perturbations of
the underlying ideal array model. In this paper, we present
two different methods for deriving a more robust
transformation. The main underlying idea is to trade off
robustness against accuracy of the Vandermonde form. In
particular, we consider its application to direction-of-
arrival estimation in the... (More) - The Davies transformation is a method to transform
the steering vector of a uniform circular array (UCA) to a
vector with Vandermonde form. As this form is similar to
that of the steering vector of a uniform linear array
(ULA), we can apply to UCAs the many tools that have
been developed for ULAs. However, the Davies
transformation can be highly sensitive to perturbations of
the underlying ideal array model. In this paper, we present
two different methods for deriving a more robust
transformation. The main underlying idea is to trade off
robustness against accuracy of the Vandermonde form. In
particular, we consider its application to direction-of-
arrival estimation in the presence of correlated signals
using root Weighted Subspace Fitting (root-WSF). The
effectiveness of these methods are illustrated through
numerical examples. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/794742
- author
- Lau, Buon Kiong LU ; Cook, Gregory J. and Leung, Yee Hong
- publishing date
- 2002
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Nordic Radio Science and Communication Conference, 2002
- pages
- 5 pages
- conference name
- Nordic Radio Science and Communication Conference 2002
- conference location
- Stockholm, Sweden
- conference dates
- 2002-06-11 - 2002-06-13
- language
- English
- LU publication?
- no
- id
- fd1522f4-b52d-49cd-ac34-8cda0275cf7c (old id 794742)
- date added to LUP
- 2016-04-04 14:21:01
- date last changed
- 2018-11-21 21:40:18
@inproceedings{fd1522f4-b52d-49cd-ac34-8cda0275cf7c, abstract = {{The Davies transformation is a method to transform <br/>the steering vector of a uniform circular array (UCA) to a <br/>vector with Vandermonde form. As this form is similar to <br/>that of the steering vector of a uniform linear array <br/>(ULA), we can apply to UCAs the many tools that have <br/>been developed for ULAs. However, the Davies <br/>transformation can be highly sensitive to perturbations of <br/>the underlying ideal array model. In this paper, we present <br/>two different methods for deriving a more robust <br/>transformation. The main underlying idea is to trade off <br/>robustness against accuracy of the Vandermonde form. In <br/>particular, we consider its application to direction-of-<br/>arrival estimation in the presence of correlated signals <br/>using root Weighted Subspace Fitting (root-WSF). The <br/>effectiveness of these methods are illustrated through <br/>numerical examples.}}, author = {{Lau, Buon Kiong and Cook, Gregory J. and Leung, Yee Hong}}, booktitle = {{Nordic Radio Science and Communication Conference, 2002}}, language = {{eng}}, pages = {{558--562}}, title = {{Direction of arrival estimation in the presence of correlated signals with non-ideal uniform circular arrays}}, url = {{https://lup.lub.lu.se/search/files/46132377/1628474.pdf}}, year = {{2002}}, }