Fast communication: Adaptive nulling beamformer for rejection of coherent and noncoherent interferences

Authors:
Yang-Ho Choi
Affiliations:
Department of Electronics and Communication Engineering, Kangwon National University, Chunchon, Kangwon-Do 200-701, South Korea
Venue:
Signal Processing
Year:
2012

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Abstract

An adaptive beamforming method is presented which rejects coherent and noncoherent interferences by using an interference subspace, which is efficiently obtained from a submatrix of the covariance matrix of received signals. The use of the submatrix enables an increase in the effective array aperture size, as compared with the existing correlation-vector-based beamformer (CVB). As a result, the proposed beamformer can provide superior performance than conventional methods such as CVB and the weighted spatial smoothing (WSS).