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Multiple-measurement vector based implementation for single-measurement vector sparse Bayesian learning with reduced complexity
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DOI：10.1016/j.sigpro.2015.06.020.png)
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Abstract
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Sparse Bayesian learning (SBL) has high computational complexity associated with matrix inversion in each iteration. In this paper, we investigate complexity reduced multiple-measurement vector (MMV) based implementation for single-measurement vector SBL problems. For problems with special structured sensing matrices, we propose two suboptimal SBL schemes with significantly reduced complexity and slight estimation performance degradation, by exploiting the deterministic correlation in the converted MMV model explicitly. Two application scenarios on channel estimation in multicarrier systems and direction of arrival estimation are presented. Simulation results validate the effectiveness of the schemes. (C) 2015 Elsevier B.V. All rights reserved.
Keywords:
Compressive sensing
Sparse Bayesian learning
Direction of arrival estimation
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