DMRA: An Adaptive Line Spectrum Estimation Method through Dynamical
Multi-Resolution of Atoms
DMRA: An Adaptive Line Spectrum Estimation Method through Dynamical
Multi-Resolution of Atoms
We proposed a novel dense line spectrum super-resolution algorithm, the DMRA, that leverages dynamical multi-resolution of atoms technique to address the limitation of traditional compressed sensing methods when handling dense point-source signals. The algorithm utilizes a smooth $\tanh$ relaxation function to replace the $\ell_0$ norm, promoting sparsity and jointly estimating …