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

Research output: Contribution to conferencePaper, not in proceeding


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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  • External Organization - Unknown
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Electrical Engineering, Electronic Engineering, Information Engineering
Original languageEnglish
Publication statusPublished - 2004
Publication categoryResearch
Event2nd Industrial Optimization Symposium - Perth, Australia
Duration: 2004 Aug 232004 Aug 25


Conference2nd Industrial Optimization Symposium