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Array signal processing with non-ideal uniform circular arrays in correlated signal environments

Lau, Buon Kiong LU ; Leung, Yee Hong; Liu, Yanqun and Teo, Kok Lay (2004) 2nd Industrial Optimization Symposium
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. In this paper, we present 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.
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2nd Industrial Optimization Symposium
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73ccdbf8-69c2-4654-ba99-53ffb34e3e74 (old id 1269024)
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2008-11-20 12:53:50
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@misc{73ccdbf8-69c2-4654-ba99-53ffb34e3e74,
  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. In this paper, we present 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, Yee Hong and Liu, Yanqun and Teo, Kok Lay},
  language     = {eng},
  title        = {Array signal processing with non-ideal uniform circular arrays in correlated signal environments},
  year         = {2004},
}