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Direction of arrival estimation in the presence of correlated signals and array imperfections with uniform circular arrays

Lau, Buon Kiong LU ; Leung, Yee Hong; Liu, Yanqun and Teo, Kok Lay (2002) IEEE International Conference on Acoustics, Speech and Signal Processing, 2002 3. p.3037-3040
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 a method for deriving a more robust transformation using novel optimization techniques. In particular, we consider its application to direction of arrival estimation in the presence of correlated signals. The effectiveness of the method is illustrated through a numerical example.
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2002
volume
3
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE International Conference on Acoustics, Speech and Signal Processing, 2002
conference location
Orlando, FL, United States
conference dates
2002-05-13 - 2002-05-17
external identifiers
  • scopus:0036293814
ISBN
0-7803-7402-9
DOI
10.1109/ICASSP.2002.5745289
language
English
LU publication?
no
id
22b8f28d-edb5-44b8-9144-c58fa21b0fc2 (old id 794708)
date added to LUP
2007-12-27 08:57:33
date last changed
2018-11-21 20:59:41
@inproceedings{22b8f28d-edb5-44b8-9144-c58fa21b0fc2,
  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 a method for deriving a more robust transformation using novel optimization techniques. In particular, we consider its application to direction of arrival estimation in the presence of correlated signals. The effectiveness of the method is illustrated through a numerical example.},
  author       = {Lau, Buon Kiong and Leung, Yee Hong and Liu, Yanqun and Teo, Kok Lay},
  isbn         = { 0-7803-7402-9},
  language     = {eng},
  location     = {Orlando, FL, United States},
  pages        = {3037--3040},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  title        = {Direction of arrival estimation in the presence of correlated signals and array imperfections with uniform circular arrays},
  url          = {http://dx.doi.org/10.1109/ICASSP.2002.5745289},
  volume       = {3},
  year         = {2002},
}