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

Författare:
Publiceringsår: 2004
Språk: Engelska
Dokumenttyp: Konferensbidrag

Sammanfattning

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.

Disputation

Nyckelord

  • Technology and Engineering

Övriga

2nd Industrial Optimization Symposium
2004-08-23/2004-08-25
Perth, Australia
Published
Yes
  • Radio Systems
  • Electromagnetic theory

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