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A novel robust fixed frequency invariant beamformer (FIB) against arbitrary array manifold errors is proposed, by employing the worst-case performance optimization technique with norm-bounded error matrices. A closed-form solution is provided by finding the minimum generalized eigenvector of a pair of matrices. Design examples show that our proposed design significantly outperforms previously proposed...
A novel adaptive beamforming method is proposed without the knowledge of the direction of arrival of the signal of interest. It is a combination of the traditional beamspace processing method and a recently proposed technique called ldquodomain weighted principal component analysis (DW-PCA)rdquo and can be applied to the case where the signal of interest is stronger than the interfering signals in...
The design of frequency invariant beamformers for traditional tapped delay-line array system can be formulated as a convex optimization problem and solved efficiently using the interior-point methods. This approach is extended to the recently proposed broadband beamforming system with sensor delay-lines and some variations are proposed to cope with the specific requirements in the design. Design examples...
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