  A block sparse memory improved proportionate affine projection sign algorithm
(BS-MIP-APSA) is proposed for block sparse system identification under
impulsive noise. The new BS-MIP-APSA not only inherits the performance
improvement for block-sparse system identification, but also achieves
robustness to impulsive noise and the efficiency of the memory improved
proportionate affine projection sign algorithm (MIP-APSA). Simulations indicate
that it can provide both faster convergence rate and better tracking ability
under impulsive interference for block sparse system identification as compared
to APSA and MIP-APSA.
