Robust Blind Beamforming Technique Based on Third-Order Cumulants
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| Title | Robust Blind Beamforming Technique Based on Third-Order Cumulants |
| Authors | |
| Abstract | The goal of blind beamforming is to recover source signals only from the output of array without any a priori information about the array manifold. For the separation of independent sources, Cardoso and Souloumiac proposed an effectively blind beamforming method (JADE) using fourth-order cumulant. However, the high computation complexity of this method limits its applicability in many practical problems. Due to the fact that many source signals have nonzero third-order cumulants, such as speech and sonar signals consisting of phase-coupled sinusoids, in this paper we present a new blind beamforming method based on third-order cumulant to separate independent sources. Comparing with classic JADE method, the proposed algorithm has much lower computation complexity and is more robust to the errors resulting from finite sample size. Simulation results demonstrate these performances of our algorithm. |
| Publisher | ACADEMY PUBLISHER |
| Date | 2011-11-01 |
| Source | Journal of Computers Vol 6, No 11 (2011) |
| Rights | Copyright © ACADEMY PUBLISHER - All Rights Reserved.To request permission, please check out URL: http://www.academypublisher.com/copyrightpermission.html. |