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Direction of arrival estimation in the presence of correlated signals with non-ideal uniform circular arrays

Lau, Buon Kiong LU ; Cook, Gregory J. and Leung, Yee Hong (2002) RVK - Radiovetenskap och kommunikation, 2002Nordic Radio Science and Communication Conference 2002 In 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)
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Nordic Radio Science and Communication Conference, 2002
pages
5 pages
conference name
RVK - Radiovetenskap och kommunikation, 2002Nordic Radio Science and Communication Conference 2002
language
English
LU publication?
no
id
fd1522f4-b52d-49cd-ac34-8cda0275cf7c (old id 794742)
date added to LUP
2007-12-27 08:58:01
date last changed
2018-06-12 13:53:08
@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},
  year         = {2002},
}