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A novel robust adaptive beamforming algorithm based on a coprime array is proposed in this study. First, the authors exploit the virtual array structure of the coprime coarray to construct two subspaces. The first subspace is obtained from the covariance matrix of the virtual uniform linear array, whereas the second one is obtained by integrating a spatial spectrum over each angular sector of the signal. Then, by using a closed-form expression of the projection-based method, the steeringdoi:10.1049/iet-com.2018.5307 fatcat:kvcwhf2vpfecvo53t3xt6snngi