DOA and power estimation using a sparse representation of second-order statistics vector and ?0 ? 0 -norm approximation
We introduce a modified source parameter estimation algorithm using ?0 ? 0 -norm approximation. We give theoretical evidence that the proposed algorithm is convergent and asymptotic unbiased. We present an appropriate strategy to select regularization and tuning parameters properly. The proposed algorithm has lower sensitivity to the number of snapshots. The proposed algorithm can provide higher estimation accuracy and better robustness to noise.
sparse representation direction-of-arrival and power estimation ?0 ? 0 -norm approximation ?0 ? 0 ?0 ? 0 ? 0 tlp dc decomposition