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

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Author

Summary, in English

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.

Publishing year

2004

Language

English

Document type

Conference paper

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

2nd Industrial Optimization Symposium

Conference date

2004-08-23 - 2004-08-25

Conference place

Perth, Australia

Status

Published

Research group

  • Radio Systems
  • Electromagnetic theory