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Off-grid DOA estimation using array covariance matrix and block-...
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2021-02-21
02:08:42
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A new method based on a novel model for off-grid direction-of-arrival (DOA) estimation is presented. The novel model is based on the sample covariance matrix and the off-grid representation of the steering vector. Based on this model, its equivalent signals are assumed to satisfy independent Gaussian distribution and its noise variance can be normalized to 1. The off-grid DOAs are estimated by the block sparse Bayesian algorithm. The advantages of the proposed method are that it considers the te
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