Doubly constrained robust capon beamformer

Communications: directive radio wave systems and devices (e.g. – Directive – Including a steerable array

Reexamination Certificate

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C367S119000

Reexamination Certificate

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06894642

ABSTRACT:
A method for enhanced Capon beamforming includes the steps of providing a sensor array including a plurality of sensor elements where an array steering vector corresponding to a signal of interest (SOI) is unknown. A covariance matrix fitting relation is bounded for the unknown array steering vector by constraining the array steering vector using a constant norm and a spherical uncertainty set. The matrix fitting relation is then solved to provide an estimate of said array steering vector.

REFERENCES:
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J. Li et al., Doubly constrained robust Capon beamformer, The Thirty-Seventh Asilomar Conference on Signals, Systems & Computers, vol. 2, p. 1335-1339, Nov. 2003.*
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