@article{TUW-201298, author = {Jung, Alexander and Ben-Haim, Zvika and Hlawatsch, Franz and Eldar, Yonina C.}, title = {Unbiased Estimation of a Sparse Vector in White Gaussian Noise}, journal = {IEEE Transactions on Information Theory}, year = {2011}, volume = {57}, number = {12}, pages = {7856--7876}, url = {http://publik.tuwien.ac.at/files/PubDat_201298.pdf}, keywords = {Barankin bound , Cram{\'e}r-Rao bound , Hammersley-Chapman-Robbins bound , denoising , locally minimum variance unbiased estimator , sparsity , unbiased estimation} }