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Capon beamformer for acoustic vector sensor arrays using biquaternions

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4 Author(s)
Xiaoming Gou ; Sch. of Inf. & Electron., Beijing Inst. of Technol., Beijing, China ; Yougen Xu ; ZhiWen Liu ; Xiaofeng Gong

Using an acoustic vector sensor array, adaptive beamforming is addressed based on hypercomplex algebra. To utilize the minimum-variance distortionless response beamforming in the biquaternion domain, a variant of Capon beamformer named Biquaternion Capon (BQ-Capon) is proposed. Simulations show that the BQ-Capon beamformer outperforms the conventional long vector Capon beamformer with the convergence rate, and is less sensitive to the inaccuracy of the steering vector of the signal-of-interest (SOI) than the latter.

Published in:

Awareness Science and Technology (iCAST), 2011 3rd International Conference on

Date of Conference:

27-30 Sept. 2011