@Article{JCM-38-3, author = {Weichao, Kong and Wang, Jianjun and Wendong, Wang and Zhang, Feng}, title = {Enhanced Block-Sparse Signal Recovery Performance via Truncated $ℓ_2/ℓ_{1−2}$ Minimization}, journal = {Journal of Computational Mathematics}, year = {2020}, volume = {38}, number = {3}, pages = {437--451}, abstract = {
In this paper, we investigate truncated $ℓ_2/ℓ_{1−2}$ minimization and its associated alternating direction method of multipliers (ADMM) algorithm for recovering the block sparse signals. Based on the block restricted isometry property (Block-RIP), a theoretical analysis is presented to guarantee the validity of proposed method. Our theoretical results not only show a less error upper bound, but also promote the former recovery condition of truncated ℓ1−2 method for sparse signal recovery. Besides, the algorithm has been compared with some state-of-the-art algorithms and numerical experiments have shown excellent performances on recovering the block sparse signals.
}, issn = {1991-7139}, doi = {https://doi.org/10.4208/jcm.1811-m2017-0275}, url = {https://global-sci.com/article/84323/enhanced-block-sparse-signal-recovery-performance-via-truncated-2-12-minimization} }