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On the Optimal K-term Approximation of a Sparse Parameter Vector MMSE Estimate

E. Axell, E. G. Larsson and J-Å Larsson, "On the Optimal K-term Approximation of a Sparse Parameter Vector MMSE Estimate", in Proc. of IEEE SSP 2009, IEEE Workshop on Statistical Signal Processing, Aug.31-Sept. 3, 2009, Cardiff, Wales, UK.

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