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Title: Direction of arrival estimation in the presence of correlated signals and array imperfections with uniform circular arrays
Authors: Lau, BK
Leung, YH
Liu, YQ
Teo, KL
Keywords: Arrays
Direction of arrival estimation
Issue Date: 2002
Publisher: IEEE
Source: 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 13-17 May 2002, Orlando, FL, USA, p. III3037-III3040 How to cite?
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.
ISBN: 0-7803-7402-9
ISSN: 1520-6149
DOI: 10.1109/ICASSP.2002.5745289
Appears in Collections:Conference Paper

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